| Sieg | 255-54-10 (1) | Shannon Ritch  | Submission (Forearm Choke) |  | Road to M-1 USA 2 | Apr 04, 2019 | 2 | 0:41 | Winterhaven, California, USA |
| Cancelled Bout | | Admir Bogucanin  | - |  | GNX Series 2018: 8 Man MMA Tournament | Sep 29, 2018 | - | - | Gelnhausen, Germany |
| Sieg | 254-54-10 (1) | Johnathan Ivey | TKO (Retirement) |  | CC - Colosseum Combat 45 | Jun 30, 2018 | 1 | 3:50 | Kokomo, Indiana, Unites States |
| Niederlage | 253-54-10 (1) | Attila Vegh  | Submission (Arm-Triangle Choke) |  | Oktagon 4 | Nov 12, 2017 | 1 | 3:23 | Bratislava, Slovakia |
| Niederlage | 253-53-10 (1) | Sergey Spivak  | Submission (Rear-Naked Choke) |  | WWFC: Cage Encounter 7 | Jun 14, 2017 | 1 | 2:50 | Kiev, Ukraine |
| Niederlage | 253-52-10 (1) | Admir Bogucanin | Submission (North-South Choke) |  | Superior FC 16 | Mar 11, 2017 | 1 | 0:46 | Darmstadt, Germany |
| Sieg | 253-51-10 (1) | Brad Scholten | Decision (Unanimous) |  | Victory FC: Fight Night Waterloo | May 07, 2016 | 3 | 5:00 | Waterloo, Iowa, United States |
| Sieg | 252-51-10 (1) | John Reed | TKO (Punches) |  | Iowa Challenge 122 | Jan 09, 2016 | 1 | 0:48 | Waterloo, Iowa, United States |
| Niederlage | 251-51-10 (1) | Lechi Kurbanov | TKO (Retirement) | | Akhmat Fight Show 9: Battle in Grozny | Oct 04, 2015 | 1 | 5:00 | Grozny, Russia |
| Niederlage | 251-50-10 (1) | Alexei Kudin  | TKO (Punches) | | Russian MMA Union - New Horizons Grand Final | Nov 22, 2014 | 1 | 1:34 | Minsk, Belarus |
| Sieg | 251-49-10 (1) | DaVonta Nunn | Submission (armbar) | | Iowa Challenge 100 | Mar 29, 2014 | 1 | 1:01 | Waterloo, Iowa, United States |
| Sieg | 250-49-10 (1) | Blake Breitsprecher | TKO (punches) | | Iowa Challenge 89 | Aug 17, 2013 | 1 | 1:39 | Waterloo, United States |
| Sieg | 249-49-10 (1) | Ryan Scheeper | Submission (Punches) | | IC - Iowa Challenge 80 | Mar 09, 2013 | 1 | 0:30 | Waterloo, United States |
| Sieg | 248-49-10 (1) | Brad Scholten | Decision Split Decision | | Iowa Challenge 69 | Aug 08, 2012 | 3 | 5:00 | Waterloo, Iowa, United States |
| Niederlage | 247-49-10 (1) | Andrey Arlovski | KO (head kick) | | ProElite: Big Guns | Nov 05, 2011 | 3 | 4:59 | Moline, Illinois, United States |
| Sieg | 247-48-10 (1) | Michael Smith | KO (head kick) | | Iowa Challenge 63 | Oct 22, 2011 | 1 | 1:19 | Waterloo, Iowa, United States |
| Sieg | 246-48-10 (1) | Jesse Nunez | Submission (forearm choke) | | Iowa Challenge 63 | Jun 04, 2011 | 1 | 1:17 | Cedar Rapids, Iowa, United States |
| Sieg | 245-48-10 (1) | John McElroy | Submission (triangle choke) | | Iowa Challenge 63 | Mar 19, 2011 | 1 | 4:20 | Waterloo, Iowa, United States |
| Sieg | 244-48-10 (1) | Waylon Goldsmith | TKO (punches) | | Iowa Challenge 62 | Jan 22, 2011 | 1 | 0:27 | Waterloo, Iowa, United States |
| Niederlage | 243-48-10 (1) | Jeff Monson  | Submission (kimura) | | Elite Promotions / FTP: Fight Time | Oct 23, 2010 | 1 | 4:40 | Florida, United States |
| Niederlage | 243-47-10 (1) | Justin Newcomb | TKO (punches) | | Fury Fights | Oct 02, 2010 | 1 | 1:11 | Watertown, United States |
| Sieg | 243-46-10 (1) | Preston Shane | KO (punches) | | TP: Calm Before the Storm | Sep 16, 2010 | 2 | 0:57 | Waterloo, Iowa, United States |
| Niederlage | 242-46-10 (1) | Ricco Rodriguez | TKO (head kick) | | Cage Thug | May 01, 2010 | 1 | N/A | Waterloo, Iowa, United States |
| Sieg | 242-45-10 (1) | Brad Kohler | KO (head kick) | | CFX / XKL: Mayhem in Minneapolis | Apr 24, 2010 | 1 | 1:01 | Minnesota, United States |
| Sieg | 241-45-10 (1) | Blake Breitsprecher | Submission (rear-naked choke) | | Cage Thug | Mar 26, 2010 | 1 | 0:45 | Evansdale, Iowa, United States |
| Sieg | 240-45-10 (1) | Bob Breshears | Submission (armbar) | | Cage Thug | Mar 06, 2010 | 2 | 0:30 | Iowa, United States |
| Sieg | 239-45-10 (1) | Anton Tomash | KO (punch) | | CVFA: Friday Night Fights | Mar 05, 2010 | 2 | 0:15 | Newton, Iowa, United States |
| Sieg | 238-45-10 (1) | Anton Tomash | Submission (armbar) | | Cage Thug | Feb 27, 2010 | 1 | 2:50 | Union, Iowa, United States |
| Sieg | 237-45-10 (1) | James Neely | Submission (armbar) | | TP – Alabama Pride: Iowa vs. Alabama | Feb 05, 2010 | 1 | N/A | Pelham, United States |
| Sieg | 236-45-10 (1) | Matt Brenner | KO (punches) | | CVFA: Amateur War Zone | Jan 30, 2010 | 2 | 0:53 | Dubuque, Iowa, United States |
| Sieg | 235-45-10 (1) | Anthony Clark | KO (punches) | | CVFA: Rage in the Cage 2 | Jan 29, 2010 | 1 | 0:58 | Waterloo, Iowa, United States |
| Sieg | 234-45-10 (1) | Jesse Nunez | Submission (armbar) | | Cage Thug | Jan 23, 2010 | 1 | 2:03 | Iowa, United States |
| Sieg | 233-45-10 (1) | Robert Casey | KO (punches) | | Cage Thug | Dec 31, 2009 | 2 | N/A | West Union, United States |
| Sieg | 232-45-10 (1) | Willie Johnson | TKO (retirement) | | Cage Thug | Dec 19, 2009 | 2 | 3:00 | Waterloo, Iowa, United States |
| Sieg | 231-45-10 (1) | Steven Morlock | Submission (armbar) | | CVFA: Rage in the Cage | Nov 28, 2009 | 2 | 1:40 | Waterloo, Iowa, United States |
| Sieg | 230-45-10 (1) | Abraham Garcia | TKO (cut) | | CVFA: Rumble in Hills | Sep 12, 2009 | 1 | 1:14 | Hills, Iowa, United States |
| Sieg | 229-45-10 (1) | Jeff Flanagan | TKO (punches) | | Thunder in the Sand | Sep 05, 2009 | 2 | N/A | Conesville, Iowa, United States |
| Sieg | 228-45-10 (1) | Austin Sisson | KO (punches) | | Iowa Challenge 53: Kickfest in the Cage | Aug 15, 2009 | 2 | 0:12 | Iowa, United States |
| Sieg | 227-45-10 (1) | Tony Crawford | Submission (rear-naked choke) | | MFC 8: Ultimate Outlaws | Aug 14, 2009 | 1 | 1:12 | Iowa, United States |
| Sieg | 226-45-10 (1) | Dylan Sherman | KO (head kick) | | CVFA: Season's Beatings | Dec 27, 2008 | 2 | 0:10 | Waterloo, Iowa, United States |
| Sieg | 225-45-10 (1) | Jamie Klair | KO (punches) | | TCI: Season's Beatings | Dec 20, 2008 | 1 | 0:21 | Sioux Falls, United States |
| Sieg | 224-45-10 (1) | Preston Shane | Submission (rear-naked choke) | | CVFA: Rumble on the Rock 2 | Dec 13, 2008 | 3 | N/A | Iowa, United States |
| Sieg | 223-45-10 (1) | Dylan Sherman | Submission (rear-naked choke) | | IC 49: Kickfest | Oct 25, 2008 | 1 | 2:42 | Waterloo, Iowa, United States |
| Sieg | 222-45-10 (1) | Bryan Robinson | Submission (kimura) | | TCI: Fight Hunger | Oct 17, 2008 | 1 | 2:24 | Sioux Falls, United States |
| Sieg | 221-45-10 (1) | Bryan Robinson | TKO (punches) | | CVFA: Rumble on the Rock | Sep 27, 2008 | 2 | 1:00 | Iowa, United States |
| Sieg | 220-45-10 (1) | Christopher Clarkson | TKO (punches) | | CVFA: Battle For Women's Belts | Sep 06, 2008 | 1 | 0:46 | Waterloo, Iowa, United States |
| Sieg | 219-45-10 (1) | Vic Hall | Submission (rear-naked choke) | | CVFA: Independence Day | Jul 05, 2008 | 2 | 0:27 | Iowa, United States |
| Sieg | 218-45-10 (1) | Steve Shewry | KO (punch) | | CVFA: Battle For the Belts | Apr 19, 2008 | 2 | 0:07 | Waterloo, Iowa, United States |
| Sieg | 217-45-10 (1) | Steve Shewry | KO (punches) | | CVFA: Ironman Challenge | Mar 07, 2008 | 3 | N/A | Pella, Iowa, United States |
| Sieg | 216-45-10 (1) | Kris Crabtree | Submission (rear-naked choke) | | Extreme Challenge 90 | Feb 29, 2008 | 1 | N/A | Fort Dodge, United States |
| Sieg | 215-45-10 (1) | Matt Langbehn | KO (punch) | | Cedar Valley Fighting Association | Feb 16, 2008 | 1 | N/A | Waterloo, United States |
| Niederlage | 214-45-10 (1) | Chris Tuchscherer | Decision (unanimous) | | Max Fights 2 | Jan 26, 2008 | 3 | 5:00 | Fargo, United States |
| Sieg | 214-44-10 (1) | Russ Love | KO (punch) | | Iowa Challenge 46 | Jan 12, 2008 | 1 | 0:20 | Iowa, United States |
| Niederlage | 213-44-10 (1) | Travis Wiuff | TKO (punches) | | Smash: MMA | Nov 30, 2007 | 2 | 3:27 | Virginia, United States |
| Sieg | 213-43-10 (1) | Bryan Robinson | TKO (punches) | | CVFA: Ironman Challenge | Nov 17, 2007 | 2 | 1:10 | Rudd, Iowa, United States |
| Sieg | 212-43-10 (1) | Paul Bowers | Submission (rear-naked choke) | | CVFA: Fall Brawl | Oct 13, 2007 | 3 | 1:15 | Waterloo, United States |
| Sieg | 211-43-10 (1) | Wes Sims | Decision (unanimous) | | FF – Capitol Punishment | Sep 29, 2007 | 3 | 5:00 | Ohio, United States |
| Sieg | 210-43-10 (1) | Bryan Robinson | Submission (punches) | | CVFA: Brawl at the Falls 2 | Sep 22, 2007 | 3 | N/A | Iowa, United States |
| Sieg | 209-43-10 (1) | Paul Bowers | Decision (split) | | Max Fights 1 | Sep 07, 2007 | 3 | 5:00 | Fargo, United States |
| Sieg | 208-43-10 (1) | Wayne Porter | Submission (keylock) | | Iowa Challenge 39 | Jul 14, 2007 | 1 | 0:53 | Iowa, United States |
| Sieg | 207-43-10 (1) | Mark Long | KO (punches) | | CVFA: Summer Beatdown | Jul 13, 2007 | 2 | 1:37 | Waterloo, United States |
| Sieg | 206-43-10 (1) | Dusty Puckett | Submission (punches) | | Extreme Challenge 79 | Jun 16, 2007 | 1 | 2:02 | Davenport, Iowa, United States |
| Niederlage | 205-43-10 (1) | Ben Rothwell | Submission (kimura) | | IFL: Chicago | May 19, 2007 | 2 | 3:11 | Chicago, United States |
| Sieg | 205-42-10 (1) | Mark Boyer | KO (punch) | | Battle of Champions: Round 2 | May 05, 2007 | 1 | 1:31 | Davenport, United States |
| Sieg | 204-42-10 (1) | Tyson Smith | TKO (punches) | | CVFA: Return of the Champions | Apr 28, 2007 | 1 | 1:24 | Iowa, United States |
| Sieg | 203-42-10 (1) | Steve Fiscus | KO (punch) | | Revolution Cage Fighting 6 | Apr 13, 2007 | 1 | 1:03 | Wisconsin, United States |
| Sieg | 202-42-10 (1) | AJ Broer | KO (punch) | | Ironman Challenge 27 | Mar 31, 2007 | 1 | 0:25 | Iowa, United States |
| Sieg | 201-42-10 (1) | Jessie Garcia | TKO (punches) | | Ironman Challenge 22 | Feb 23, 2007 | 1 | 2:33 | Iowa, United States |
| Sieg | 200-42-10 (1) | Kirk Nielsen | Submission (guillotine choke) | | Ironman Challenge 22 | Feb 23, 2007 | 1 | 1:10 | Iowa, United States |
| Sieg | 199-42-10 (1) | Rory Prazak | Submission (keylock) | | Ironman Challenge 21 | Feb 09, 2007 | 4 | 0:40 | Iowa, United States |
| Sieg | 198-42-10 (1) | Rodney Arp | Submission (rear-naked choke) | | Ironman Challenge 21 | Feb 09, 2007 | 4 | 0:42 | Iowa, United States |
| Sieg | 197-42-10 (1) | Jason Roszell | TKO (punches) | | Iowa Challenge 34 | Feb 03, 2007 | 1 | 1:24 | Quincy, United States |
| Sieg | 196-42-10 (1) | Scott Pulse | KO (punch) | | Fury Fights: Temple Fight Night | Jan 27, 2007 | 1 | 0:12 | Brookings, United States |
| Sieg | 195-42-10 (1) | Mike Kofoot | Submission (slam) | | Ironman Challenge 17 | Dec 15, 2006 | 3 | N/A | Iowa, United States |
| Sieg | 194-42-10 (1) | Bryan Robinson | Submission (armbar) | | Ironman Challenge 14 | Nov 17, 2006 | 5 | N/A | Iowa, United States |
| Sieg | 193-42-10 (1) | Steve Fiscus | KO (punches) | | Ironman Challenge 14 | Nov 17, 2006 | 3 | N/A | Iowa, United States |
| Sieg | 192-42-10 (1) | Bryan Robinson | KO (punch) | | Ironman Challenge 13 | Nov 03, 2006 | 2 | 1:44 | Iowa, United States |
| Sieg | 191-42-10 (1) | John Medina | Submission (punches) | | Ironman Challenge 12 | Oct 27, 2006 | 1 | 1:57 | Iowa, United States |
| Sieg | 190-42-10 (1) | Manuel Quiroz | Submission (ankle lock) | | Ironman Challenge 11 | Oct 20, 2006 | 1 | 3:20 | Manchester, United States |
| Sieg | 189-42-10 (1) | Belal Alhmaibie | Submission (armbar) | | Kickfest 11: Fall Brawl | Oct 17, 2006 | 2 | 1:34 | Waterloo, United States |
| Sieg | 188-42-10 (1) | Mike Kofoot | Submission (slam) | | NFA: Night of the Beast | Sep 23, 2006 | 1 | N/A | Fargo, United States |
| Sieg | 187-42-10 (1) | Mike Kofoot | TKO (cut) | | Fight Club Underground | Sep 14, 2006 | 1 | N/A | Minnesota, United States |
| Sieg | 186-42-10 (1) | Ben Thoma | Submission (punches) | | Iowa Challenge 30 | Sep 09, 2006 | 1 | 3:55 | Waterloo, United States |
| Sieg | 185-42-10 (1) | Mike Kofoot | KO (punches) | | Royalty Fight Night 1 | Sep 03, 2006 | 1 | 0:51 | |
| Sieg | 184-42-10 (1) | Shawn Nolan | TKO (punches) | | Rumble on the River 6 | Sep 02, 2006 | 1 | 0:45 | Conesville, United States |
| Sieg | 183-42-10 (1) | Brad Scholten | KO (punches) | | Extreme Contact Fighting 2 | Jul 22, 2006 | 1 | 1:49 | Iowa, United States |
| Sieg | 182-42-10 (1) | John George | KO (punches) | | Kickfest 10: Summer Brawl | Jun 17, 2006 | 1 | 1:36 | Iowa, United States |
| Sieg | 181-42-10 (1) | Ben Byrd | TKO (punches) | | Ironman Challenge 8 | Jun 03, 2006 | 1 | 1:05 | Wisconsin, United States |
| Sieg | 180-42-10 (1) | John McElroy | KO (punches) | | River City Fight Club | May 20, 2006 | 1 | 3:29 | Conesville, United States |
| Sieg | 179-42-10 (1) | Rory Prazak | KO (punches) | | Ironman Challenge 7 | May 19, 2006 | 1 | N/A | Iowa, United States |
| Sieg | 178-42-10 (1) | Dan Wheatley | KO (punches) | | Ironman Challenge 6 | May 12, 2006 | 2 | N/A | Iowa, United States |
| Sieg | 177-42-10 (1) | Mark Long | KO (punches) | | CVFA: Caged Combat | May 06, 2006 | 1 | 1:59 | Iowa, United States |
| Sieg | 176-42-10 (1) | Mike Caswell | KO (punch) | | CVFA: Friday Night Throwdown 2 | Mar 24, 2006 | 1 | 0:10 | Waterloo, United States |
| Sieg | 175-42-10 (1) | Chris Clark | Submission (front choke) | | Ironman Challenge 2 | Mar 17, 2006 | 2 | N/A | Iowa, United States |
| Sieg | 174-42-10 (1) | Nowanda Bell | KO (punch) | | Ironman Challenge 1 | Mar 10, 2006 | 2 | 0:20 | Iowa, United States |
| Sieg | 173-42-10 (1) | Shawn Nolan | TKO (punches) | | CVFA: Friday Night Throwdown | Jan 06, 2006 | 1 | 1:17 | Iowa, United States |
| Sieg | 172-42-10 (1) | Manuel Quiroz | KO (punches) | | Coliseum 2 | Dec 28, 2005 | 1 | N/A | Rochester, United States |
| Sieg | 171-42-10 (1) | Brandon Quigley | Submission (rear-naked choke) | | Kickfest: November Kickfest | Nov 26, 2005 | 1 | N/A | Moline, United States |
| Sieg | 170-42-10 (1) | Chris Clark | Submission (punches) | | Rumble on the River 5 | Aug 27, 2005 | 1 | 0:50 | Conesville, United States |
| Sieg | 169-42-10 (1) | Steve Pilkington | Submission (rear-naked choke) | | AFA: The Octagon 2 | Jun 10, 2005 | 1 | 2:20 | Waterloo, United States |
| Sieg | 168-42-10 (1) | Dan Wheatley | KO (punch) | | Spring Brawl | Apr 30, 2005 | 1 | N/A | Minot, United States |
| Sieg | 167-42-10 (1) | Rory Prazak | KO (punch) | | Spring Brawl | Apr 30, 2005 | 1 | N/A | Minot, United States |
| Sieg | 166-42-10 (1) | Session Harper | Submission (rear-naked choke) | | XKK: St. Paul | Apr 23, 2005 | 1 | 0:35 | St. Paul, United States |
| Niederlage | 165-42-10 (1) | Mike Whitehead | Submission (bulldog choke) | | Extreme Challenge 61 | Apr 22, 2005 | 1 | 1:48 | Osceola, United States |
| Sieg | 165-41-10 (1) | Dan Wheatley | Submission (punches) | | AFC 1: Takedown | Apr 09, 2005 | 1 | N/A | Omaha, United States |
| Sieg | 164-41-10 (1) | Greg Larson | Submission (armbar) | | Downtown Destruction 3 | Mar 02, 2005 | 1 | N/A | Iowa, United States |
| Sieg | 163-41-10 (1) | Kaelan Gruchow | Submission (rear-naked choke) | | Kickfest 8 | Feb 12, 2005 | 1 | 1:18 | Clive, Iowa, United States |
| Sieg | 162-41-10 (1) | Rory Prazak | TKO (punches) | | NFA: Super Brawl | Jan 29, 2005 | 1 | 2:13 | United States |
| Sieg | 161-41-10 (1) | Kyle Olsen | Submission (punches) | | AFA: Friday Night Fights | Jan 14, 2005 | 1 | 1:00 | Waterloo, United States |
| Sieg | 160-41-10 (1) | Manuel Quiroz | Submission (rear-naked choke) | | Downtown Destruction 1 | Jan 12, 2005 | 1 | 0:49 | Iowa, United States |
| Sieg | 159-41-10 (1) | Don Richards | TKO (corner stoppage) | | King of the Cage 45 | Nov 20, 2004 | 1 | 5:00 | Belterra, United States |
| Sieg | 158-41-10 (1) | Kaelan Gruchow | KO (punches) | | Iowa Challenge 17 | Nov 06, 2004 | 1 | N/A | Iowa, United States |
| Sieg | 157-41-10 (1) | Mark Long | Submission (punches) | | XKK: Fridley | Nov 05, 2004 | 2 | 0:16 | Fridley, United States |
| Sieg | 156-41-10 (1) | Dan Wheatley | Submission (punches) | | Judgment Night 2 | Nov 03, 2004 | 1 | 1:48 | Iowa, United States |
| Sieg | 155-41-10 (1) | Matt Albright | TKO (punches) | | XKK: Des Moines | Oct 30, 2004 | 1 | 0:22 | Iowa, United States |
| Sieg | 154-41-10 (1) | Dan Wheatley | KO (head kick) | | Iowa Challenge 16 | Oct 23, 2004 | 1 | N/A | Oskaloosa, United States |
| Sieg | 153-41-10 (1) | Dan Wheatley | KO (head kick) | | Judgment Night 1 | Oct 06, 2004 | 1 | N/A | Iowa, United States |
| Sieg | 152-41-10 (1) | Brandon Quigley | Submission (rear-naked choke) | | NFA: Battle For the Belts | Sep 25, 2004 | 1 | N/A | Minnesota, United States |
| Sieg | 151-41-10 (1) | Jeremy Shuey | Submission (punches) | | River City Fight Club | Sep 04, 2004 | 1 | N/A | Iowa, United States |
| Sieg | 150-41-10 (1) | Albert Newberry | Submission (guillotine choke) | | Xtreme Kage Kombat | Aug 07, 2004 | 1 | N/A | Iowa, United States |
| Sieg | 149-41-10 (1) | Tom McCloud | Submission (guillotine choke) | | Ultimate Throwdown | Jul 16, 2004 | 1 | 2:13 | Iowa, United States |
| Sieg | 148-41-10 (1) | Rory Prazak | Submission (arm-triangle choke) | | Iowa Extreme Fighting | Apr 13, 2004 | 2 | 2:23 | Iowa, United States |
| Sieg | 147-41-10 (1) | Ivan Carabello | Submission (punches) | | Dangerzone 26: Professional LCF | Apr 10, 2004 | 1 | 0:32 | Osceola, United States |
| Sieg | 146-41-10 (1) | Joe Ripple | Submission (front choke) | | Bar Room Brawl 25 | Mar 31, 2004 | 1 | 1:19 | Owatonna, United States |
| Sieg | 145-41-10 (1) | Rory Prazak | Submission (armbar) | | Bar Room Brawl 25 | Mar 31, 2004 | 1 | 2:50 | Owatonna, United States |
| Sieg | 144-41-10 (1) | Albert Newberry | Submission (guillotine choke) | | AFA: Return of the Champions | Mar 27, 2004 | 1 | N/A | Waterloo, United States |
| Sieg | 143-41-10 (1) | Adam Norciaj | KO (punch) | | NFA: Best Damn Fights | Mar 20, 2004 | 1 | 0:05 | Fargo, United States |
| Sieg | 142-41-10 (1) | Mike Preece | Submission (punches) | | VFC 7: Showdown | Mar 06, 2004 | 1 | 0:20 | Iowa, United States |
| Niederlage | 141-41-10 (1) | Eric Pele | Submission (verbal) | | KOTC 32: Bringing Heat | Jan 24, 2004 | 1 | 1:35 | Miami, United States |
| Sieg | 141-40-10 (1) | Manuel Quiroz | Submission (punches) | | AFA: Battle For the Belts 2 | Jan 23, 2004 | 1 | 1:03 | Iowa, United States |
| Sieg | 140-40-10 (1) | Rory Prazak | Submission (guillotine choke) | | Bar Room Brawl 21 | Jan 03, 2004 | 1 | 0:45 | Owatonna, United States |
| Sieg | 139-40-10 (1) | Doug Sauer | Submission (rear-naked choke) | | RSF: Shooto Challenge 2 | Jan 02, 2004 | 1 | 2:05 | Belleville, United States |
| Sieg | 138-40-10 (1) | Jason Purcell | Submission (armbar) | | AFA: Second Coming | Dec 06, 2003 | 1 | 2:40 | Iowa, United States |
| Sieg | 137-40-10 (1) | Travis Utley | Submission (rear-naked choke) | | Bar Room Brawl 18 | Nov 19, 2003 | 1 | 0:46 | Owatonna, United States |
| Niederlage | 136-40-10 (1) | Travis Wiuff | Decision (split) | | Iowa Challenge 11 | Oct 18, 2003 | 3 | 3:00 | Iowa, United States |
| Sieg | 136-39-10 (1) | Joe Alvarez | KO (punches) | | Iowa Extreme Fighting 11 | Oct 04, 2003 | 1 | 2:45 | Iowa, United States |
| Sieg | 135-39-10 (1) | Brian Dunn | Submission (rear-naked choke) | | RSF: Shooto Challenge | Oct 03, 2003 | 1 | 1:35 | Belleville, United States |
| Sieg | 134-39-10 (1) | Joe Nameth | Submission (kimura) | | CFM: Octogono Extremo | Sep 27, 2003 | 1 | N/A | Monterrey, Mexico |
| Niederlage | 133-39-10 (1) | Ray Seraile | Decision (unanimous) | | SuperBrawl 31 | Sep 20, 2003 | 3 | 3:00 | Honolulu, United States |
| Sieg | 133-38-10 (1) | Rory Prazak | TKO (punches) | | Bar Room Brawl 14 | Sep 17, 2003 | 2 | 2:37 | United States |
| Sieg | 132-38-10 (1) | Vince Lucero | Submission (guillotine choke) | | XCF 2: Havoc in Havasu 1 | Sep 06, 2003 | 1 | 2:30 | Arizona, United States |
| Sieg | 131-38-10 (1) | Bryan Robinson | KO (spinning back kick) | | Kickfest 6 | Aug 23, 2003 | 1 | 0:30 | Waterloo, United States |
| Sieg | 130-38-10 (1) | Michael Miller | Submission (rear-naked choke) | | Extreme Challenge 52 | Aug 15, 2003 | 1 | 0:45 | Illinois, United States |
| Niederlage | 129-38-10 (1) | Miodrag Petkovic  | Decision (unanimous) | | DF: Durata World Grand Prix 2 | Aug 10, 2003 | 1 | 5:00 | Opatija, Croatia |
| Sieg | 129-37-10 (1) | Brian Dunn | KO (punch) | | AFA: Battle For the Belts | Jul 12, 2003 | 2 | 0:10 | Iowa, United States |
| Sieg | 128-37-10 (1) | Lewis Burns | Submission (guillotine choke) | | AFA: Battle For the Belts | Jul 12, 2003 | 1 | 0:25 | Iowa, United States |
| Sieg | 127-37-10 (1) | Victor Rohrer | Submission (front choke) | | Independence Day Showdown | Jul 04, 2003 | 1 | N/A | |
| Sieg | 126-37-10 (1) | Mike Delaney | Decision (unanimous) | | Freestyle Combat Challenge 11 | Jun 28, 2003 | 3 | 5:00 | Racine, United States |
| Sieg | 125-37-10 (1) | Demian Decorah | Decision (unanimous) | | IFA: The Return | May 03, 2003 | 1 | 9:00 | Iowa, United States |
| Sieg | 124-37-10 (1) | Jeremy Armstrong | KO (punch) | | IFA: The Return | May 03, 2003 | 1 | 1:01 | Iowa, United States |
| Unentschieden | 123-37-10 (1) | Bruce Nelson | Draw | | Sabin Showdown | Apr 26, 2003 | 3 | 3:00 | Moorhead, United States |
| Niederlage | 123-37-9 (1) | Greg Wikan | Submission (verbal) | | ICC 2: Rebellion | Apr 18, 2003 | 1 | 4:43 | Minnesota, United States |
| Sieg | 123-36-9 (1) | Royce Louck | Submission (punches) | | Minnesota Extreme Fight 2 | Apr 12, 2003 | 1 | N/A | Duluth, United States |
| Sieg | 122-36-9 (1) | Joe Riggs | Submission (choke) | | RITC 45: Finally | Mar 01, 2003 | 1 | 0:48 | Phoenix, United States |
| Sieg | 121-36-9 (1) | Dan Croonquist | Submission (guillotine choke) | | CAGE | Feb 01, 2003 | 1 | 4:28 | Iowa, United States |
| Sieg | 120-36-9 (1) | Jeremy Armstrong | Submission (punches) | | CAGE | Feb 01, 2003 | 1 | 0:57 | Iowa, United States |
| Sieg | 119-36-9 (1) | Mitch Walters | KO (punch) | | CAGE | Feb 01, 2003 | 1 | 0:12 | Iowa, United States |
| Sieg | 118-36-9 (1) | Jeremy Armstrong | Submission (rear-naked choke) | | Sokol Hall Brawl 3 | Jan 15, 2003 | 1 | 0:47 | Omaha, United States |
| Niederlage | 117-36-9 (1) | Jeremy Horn | TKO (corner stoppage) | | ICC 1: Retribution | Jan 12, 2003 | 2 | 0:50 | Minnesota, United States |
| Sieg | 117-35-9 (1) | Mike Toyne | Submission (punches) | | Blairstown Brawl 7 | Dec 21, 2002 | 1 | 1:40 | Iowa, United States |
| Sieg | 116-35-9 (1) | Josh Stamp | Submission (punches) | | Extreme Combat 1 | Dec 06, 2002 | 1 | 1:45 | Minnesota, United States |
| Sieg | 115-35-9 (1) | Raymond Luna | Submission (guillotine choke) | | Thursday Night Fights | Nov 14, 2002 | 1 | 1:17 | Iowa, United States |
| Niederlage | 114-35-9 (1) | Forrest Griffin | TKO (doctor stoppage) | | CC 1: Halloween Heat | Oct 26, 2002 | 1 | 5:00 | Atlanta, Georgia, United States |
| Sieg | 114-34-9 (1) | Adam Harris | KO (punch) | | Blairstown Brawl 6 | Oct 05, 2002 | 1 | 0:06 | Blairstown, United States |
| Niederlage | 113-34-9 (1) | Ben Rothwell | Submission (injury) | | Freestyle Combat Challenge 8 | Oct 04, 2002 | 1 | 5:00 | Racine, United States |
| Sieg | 113-33-9 (1) | Riley McIlhon | Submission (rear-naked choke) | | Iowa Challenge 6 | Sep 13, 2002 | 1 | 4:13 | Iowa, United States |
| Niederlage | 112-33-9 (1) | Travis Wiuff | Decision (unanimous) | | Iowa Challenge 5 | Jul 13, 2002 | 3 | 5:00 | Iowa, United States |
| Sieg | 112-32-9 (1) | Johnathan Ivey | Submission (kimura) | | XCF: California Pancration Championships | Jun 11, 2002 | 1 | 3:39 | California, United States |
| Sieg | 111-32-9 (1) | Darren Peyton | Submission (punches) | | Iowa Extreme Fighting 7 | Apr 19, 2002 | 1 | 3:30 | Iowa, United States |
| Sieg | 110-32-9 (1) | Kevin Oliver | Submission (punches) | | American Reality Combat 3 | Apr 18, 2002 | 1 | 0:28 | Evansdale, United States |
| Sieg | 109-32-9 (1) | Carle Garner | Submission (rear-naked choke) | | Tuesday Night Fights | Mar 26, 2002 | 1 | 0:49 | |
| Sieg | 108-32-9 (1) | Don Lawrence | Submission (punches) | | Sunday Night Fights | Mar 11, 2002 | 1 | 0:13 | |
| Sieg | 107-32-9 (1) | Jason Bentley | Submission (punches) | | Iowa Challenge 4 | Mar 02, 2002 | 1 | 0:40 | Iowa, United States |
| Sieg | 106-32-9 (1) | Robbie Beltz | Submission (punches) | | Tuesday Night Fights | Jan 24, 2002 | 1 | 0:14 | Iowa, United States |
| Sieg | 105-32-9 (1) | Bruce Nelson | Submission (punches) | | Friday Night Fights | Jan 18, 2002 | 1 | 2:38 | |
| Sieg | 104-32-9 (1) | Tony Day | KO (punch) | | Tuesday Night Fights | Jan 15, 2002 | 1 | 0:34 | Iowa, United States |
| Sieg | 103-32-9 (1) | Tony Day | KO (punches) | | Freestyle Combat Challenge 6 | Jan 05, 2002 | 1 | 1:24 | Racine, United States |
| Niederlage | 102-32-9 (1) | Mike Radnov | Decision (unanimous) | | Rock 'N' Rumble 1 | Dec 29, 2001 | 3 | 5:00 | |
| Sieg | 102-31-9 (1) | Don Hildebrandt | TKO (punches) | | CFC: Winter War | Dec 08, 2001 | 1 | 1:03 | Iowa, United States |
| Sieg | 101-31-9 (1) | Brad Russell | KO (punch) | | Iowa Fight Night 3 | Nov 10, 2001 | 1 | 0:19 | Iowa, United States |
| Sieg | 100-31-9 (1) | Anthony Seu | Submission (rear-naked choke) | | Iowa Fight Night 2 | Oct 27, 2001 | 1 | 1:11 | Iowa, United States |
| Sieg | 99-31-9 (1) | Scott Walker | KO (punch) | | Iowa Fight Night 1 | Oct 13, 2001 | 2 | 1:09 | Iowa, United States |
| NC | 98-31-9 (1) | Greg Wikan | NC (premature stoppage) | | UW: Street Fight Minnesota | Sep 30, 2001 | 1 | N/A | St. Paul, United States |
| Unentschieden | 98-31-9 | Dan Severn | Draw | | Iowa Challenge 3 | Sep 22, 2001 | 3 | 5:00 | Waterloo, United States |
| Sieg | 98-31-8 | Jamie Webb | TKO (punches) | | Gladiators 18 | Sep 08, 2001 | 1 | 0:28 | |
| Sieg | 97-31-8 | Tony Day | TKO (punches) | | Iowa Challenge 2 | Aug 11, 2001 | 1 | 0:38 | lowa, United States |
| Sieg | 96-31-8 | Matt Clemens | TKO (punches) | | Ultimate Submission Challenge | Jul 07, 2001 | 1 | 0:45 | Bethalto, United States |
| Niederlage | 95-31-8 | Dan Severn | Decision (unanimous) | | WEC 1: Princes of Pain | Jun 30, 2001 | 3 | 5:00 | Lemoore, United States |
| Sieg | 95-30-8 | Andy Burwell | Submission (punches) | | Rumble on the River 2 | Jun 25, 2001 | 1 | 0:38 | Indiana, United States |
| Sieg | 94-30-8 | Robert Bryant | Submission (punches) | | Lincoln Fights 2 | Jun 17, 2001 | 1 | 0:45 | |
| Sieg | 93-30-8 | Cal Worsham | TKO (corner stoppage) | | IFC Warriors Challenge 13 | Jun 15, 2001 | 2 | 5:00 | California, United States |
| Sieg | 92-30-8 | Demetrius Worlds | Submission (rear-naked choke) | | Lincoln Fights 1 | Jun 10, 2001 | 1 | 2:10 | |
| Sieg | 91-30-8 | Ben Boyer | Submission (punches) | | Thursday Night Fights | May 30, 2001 | 1 | 0:25 | Omaha, United States |
| Sieg | 90-30-8 | Lionel Saunders | Submission (armbar) | | Thursday Night Fights | May 30, 2001 | 1 | 1:30 | Omaha, United States |
| Sieg | 89-30-8 | John Medina | Submission (armbar) | | IFF 8: End Game | May 18, 2001 | 1 | 0:39 | Iowa, United States |
| Unentschieden | 88-30-8 | Clayton Miller | Draw | | Iowa Challenge Eliminations 1 | Apr 28, 2001 | 1 | 10:00 | Iowa, United States |
| Unentschieden | 88-30-7 | Mark Jaquith | Draw | | Kickfest 3 | Apr 13, 2001 | 1 | 12:00 | Iowa, United States |
| Sieg | 88-30-6 | Ben Boyer | Submission (rear-naked choke) | | Freestyle Combat Challenge 4 | Mar 31, 2001 | 1 | 0:48 | Racine, United States |
| Sieg | 87-30-6 | Allan Sullivan | Submission (armbar) | | Reality Submission Fighting 3 | Mar 30, 2001 | 1 | 7:35 | Belleville, United States |
| Niederlage | 86-30-6 | Rich Franklin | TKO (broken hand) | | RINGS USA: Battle of Champions | Mar 17, 2001 | 1 | 5:00 | Iowa, United States |
| Sieg | 86-29-6 | Ron Faircloth | Submission (armbar) | | Iowa Challenge 1 | Feb 10, 2001 | 1 | 2:55 | Waterloo, United States |
| Sieg | 85-29-6 | Kerry Schall | TKO (punches) | | Extreme Tuesday Night Fights | Jan 18, 2001 | 1 | 6:56 | |
| Sieg | 84-29-6 | Troy Rugger | Submission (armbar) | | Freestyle Combat Challenge 3 | Jan 06, 2001 | 1 | 0:45 | |
| Niederlage | 83-29-6 | Harout Terzyan | Submission (ankle lock) | | Reality Submission Fighting 2 | Jan 05, 2001 | 1 | 3:26 | |
| Sieg | 83-28-6 | Troy Rugger | Submission (punches) | | Iowa Free Fight 7 | Dec 15, 2000 | 1 | 1:20 | Iowa, United States |
| Niederlage | 82-28-6 | Evan Tanner | Submission (triangle choke) | | Unified Shoot Wrestling Federation 18 | Nov 25, 2000 | 1 | 4:31 | Amarillo, United States |
| Sieg | 82-27-6 | Steve Miller | Submission (punches) | | Iowa Free Fight 6 | Nov 19, 2000 | 1 | 1:47 | Iowa, United States |
| Niederlage | 81-27-6 | Mike Rogers | Submission (headlock) | | Submission Fighting Champ. 12 | Nov 03, 2000 | 1 | N/A | Collinsville, United States |
| Niederlage | 81-26-6 | Dan Severn | Submission (rear-naked choke) | | Dangerzone: Night of the Beast | Oct 28, 2000 | 1 | 2:01 | Lynchburg, United States |
| Sieg | 81-25-6 | Wesley Correira | Submission (armbar) | | SuperBrawl 18 | Oct 26, 2000 | 1 | 4:49 | Agana, Guam |
| Sieg | 80-25-6 | Greg Wikan | Submission (armbar) | | Rings USA: Rising Stars Final | Sep 30, 2000 | 1 | 3:48 | Moline, United States |
| Sieg | 79-25-6 | Bruce Nelson | KO (punches) | | IFF 5: Battle for the Belts | Sep 23, 2000 | 1 | 2:54 | Iowa, United States |
| Sieg | 78-25-6 | Ron Rumpf | KO (punch) | | IFF 5: Battle for the Belts | Sep 23, 2000 | 1 | 0:08 | Iowa, United States |
| Sieg | 77-25-6 | Jamie Webb | Submission (punches) | | Gladiators 9 | Sep 08, 2000 | 1 | 0:28 | |
| Sieg | 76-25-6 | Harry Moskowitz | Submission (armbar) | | Submission Fighting Champ. 11 | Aug 23, 2000 | 1 | 6:28 | Collinsville, United States |
| Sieg | 75-25-6 | Quinton Lemke | Submission (punches) | | Iowa Free Fight 4 | Jul 28, 2000 | 1 | 1:36 | Iowa, United States |
| Niederlage | 74-25-6 | Tsuyoshi Kohsaka  | Decision (unanimous) | | Rings USA: Rising Stars Block A | Jul 15, 2000 | 3 | 05:00 | Orem, Utah, United States |
| Sieg | 74-24-6 | Matt Frost | Submission (rear-naked choke) | | Gladiators 7 | Jul 14, 2000 | 1 | 2:17 | |
| Niederlage | 73-24-6 | Zaza Tkeshelashvili  | Submission (achilles lock) | | Rings Russia: Russia vs. The World | May 20, 2000 | 1 | 1:20 | Sverdlovsk, Russia |
| Sieg | 73-23-6 | Chad Gilson | KO (punch) | | Submission Fighting Champ. 10 | Apr 28, 2000 | 1 | 0:51 | Collinsville, United States |
| Niederlage | 72-23-6 | Renato Sobral  | Submission (armbar) | | Fighting Network Rings: Millennium Combine 1 | Apr 20, 2000 | 1 | 4:49 | Tokyo, Japan |
| Sieg | 72-22-6 | Mitch Rosland | Submission (punches) | | Iowa Free Fight 2 | Mar 03, 2000 | 1 | 1:11 | Iowa, United States |
| Niederlage | 71-22-6 | Ricco Rodriguez | Submission (armbar) | | KOTC 2: Desert Storm | Feb 05, 2000 | 1 | 4:49 | California, United States |
| Sieg | 71-21-6 | Jay Carmack | Submission (guillotine choke) | | Submission Fighting Champ. 9 | Jan 28, 2000 | 1 | 3:28 | Belleville, United States |
| Sieg | 70-21-6 | Kristof Midoux | KO (punches) | | IFC: Battleground 2000 | Jan 22, 2000 | 1 | 8:51 | Quebec, Canada |
| Sieg | 69-21-6 | Shane Bailey | TKO (punches) | | Iowa Free Fight 1 | Jan 18, 2000 | 1 | 0:24 | Iowa, United States |
| Sieg | 68-21-6 | Brad Schafer | Submission (armbar) | | Iowa Free Fight 1 | Jan 18, 2000 | 1 | 7:38 | Iowa, United States |
| Sieg | 67-21-6 | Jason Fulcher | TKO (punches) | | Iowa Free Fight 1 | Jan 18, 2000 | 1 | 1:03 | Iowa, United States |
| Niederlage | 66-21-6 | Branden Lee Hinkle | TKO (injury) | | Holiday Fight Party | Dec 11, 1999 | 1 | 12:38 | Georgia, United States |
| Niederlage | 66-20-6 | Ian Freeman | TKO (retirement) | | MB 1: The Beginning | Dec 05, 1999 | 2 | 5:00 | England |
| Sieg | 66-19-6 | Jason Allar | Submission (elbows) | | Extreme Challenge 30 | Dec 01, 1999 | 1 | 2:53 | Iowa, United States |
| Sieg | 65-19-6 | Kevin Leemon | Submission (punches) | | Iowa Extreme Fighting 5 | Nov 28, 1999 | 1 | 1:33 | Iowa, United States |
| Sieg | 64-19-6 | Mike Bruce | Submission (punches) | | Dangerzone: Ft. Wayne | Nov 22, 1999 | 1 | 0:55 | Fort Wayne, United States |
| Unentschieden | 63-19-6 | Sanae Kikuta | Draw | | Pancrase: Breakthrough 9 | Oct 25, 1999 | 1 | 15:00 | Korakuen Hall, Tokyo, Japan |
| Sieg | 63-19-5 | Brad Schafer | Submission (armbar) | | Kickfest 2 | Oct 09, 1999 | 1 | 1:03 | Waterloo, United States |
| Sieg | 62-19-5 | Aaron Keeney | TKO (punches) | | Extreme Challenge: Trials | Oct 04, 1999 | 1 | 1:54 | Iowa, United States |
| Niederlage | 61-19-5 | John Marsh | Submission (heel hook) | | SuperBrawl 13 | Sep 07, 1999 | 2 | 2:48 | Honolulu, United States |
| Niederlage | 61-18-5 | Tedd Williams | Decision (unanimous) | | Lionheart Invitational | Sep 01, 1999 | 1 | 20:00 | Atlanta, United States |
| Sieg | 61-17-5 | Wade Rome | TKO (punches) | | Extreme Challenge 27 | Aug 21, 1999 | 1 | 0:59 | Davenport, United States |
| Sieg | 60-17-5 | Dan Chase | KO (punch) | | Absolute Face Off | Aug 08, 1999 | 1 | 0:40 | Phoenix, United States |
| Sieg | 59-17-5 | David Dodd | Decision (unanimous) | | UFC 21: Return of the Champions | Jul 16, 1999 | 2 | 5:00 | Iowa, United States |
| Niederlage | 58-17-5 | Ahmad Ahmad | Submission (heel hook) | | Neutral Grounds 12 | May 28, 1999 | 1 | N/A | |
| Niederlage | 58-16-5 | Jeremiah Miller | Decision (unanimous) | | Neutral Grounds 12 | May 28, 1999 | 1 | 10:00 | |
| Sieg | 58-15-5 | Heath Herring | Decision (unanimous) | | Extreme Challenge 24 | May 15, 1999 | 1 | 12:00 | Utah, United States |
| Niederlage | 57-15-5 | Pete Williams | Submission (armlock) | | UFC 20: Battle for the Gold | May 07, 1999 | 1 | 6:28 | Alabama, United States |
| Sieg | 57-14-5 | Albert Newberry | Submission (punches) | | Kickfest 1 | Apr 03, 1999 | 1 | 1:21 | lowa, United States |
| Niederlage | 56-14-5 | Vladimir Matyushenko | Submission (neck crank) | | IFC: Fighters Revenge | Apr 02, 1999 | 1 | 15:33 | Montreal, Quebec  |
| Sieg | 56-13-5 | Harry Moskowitz | KO (punches) | | HOOKnSHOOT: Horizon | Mar 20, 1999 | 1 | 2:00 | Evansville, United States |
| Sieg | 55-13-5 | Kevin Burrell | KO (punch) | | Submission Fighting Champ. 5 | Jan 31, 1999 | 1 | 0:06 | Belleville, United States |
| Sieg | 54-13-5 | Tommy Graham | Submission (armbar) | | HOOKnSHOOT: Trial | Jan 30, 1999 | 1 | 2:45 | Evansville, United States |
| Sieg | 53-13-5 | Barrett Banks | KO (punch) | | Extreme Boxing 1 | Jan 20, 1999 | 1 | 0:38 | Davenport, United States |
| Sieg | 52-13-5 | Peter McLeod | Submission (armbar) | | IFC: Extreme Combat | Jan 09, 1999 | 1 | 5:00 | Montreal, Quebec, Canada |
| Sieg | 51-13-5 | John Dixson | Submission (armbar) | | IFC: Extreme Combat | Jan 09, 1999 | 1 | 0:39 | Montreal, Quebec, Canada |
| Sieg | 50-13-5 | Wade Hamilton | Submission (rear-naked choke) | | IFC: Extreme Combat | Jan 09, 1999 | 1 | 1:22 | Montreal, Canada |
| Niederlage | 49-13-5 | George Allen | Disqualification | | New Year's Eve Knockout 1 | Dec 31, 1998 | 1 | N/A | Atlanta, United States |
| Sieg | 49-12-5 | Jeremy Bullock | KO (slam) | | Extreme Challenge 22 | Nov 21, 1998 | 1 | 0:44 | Utah, United States |
| Niederlage | 48-12-5 | Mario Neto | Submission (rear-naked choke) | | Circuito Brasileiro de Vale Tudo 4 | Nov 18, 1998 | 1 | 10:36 | Brazil |
| Sieg | 48-11-5 | David Giannotti | Submission (punches) | | HOOKnSHOOT: Eruption | Nov 07, 1998 | 1 | 2:20 | Evansville, United States |
| Unentschieden | 47-11-5 | Joe Geromiller | Draw | | Submission Fighting Champ. 4 | Nov 06, 1998 | 1 | 14:00 | Illinois, United States |
| Sieg | 47-11-4 | Luiz Claudio Nunes | TKO (punches) | | World Vale Tudo Championship 6 | Nov 01, 1998 | 1 | 1:53 | Brazil |
| Sieg | 46-11-4 | Augusto Ferreira | Submission (punches) | | World Vale Tudo Championship 6 | Nov 01, 1998 | 1 | 7:06 | Brazil |
| Sieg | 45-11-4 | Alex Cerqueira | Submission (punches) | | World Vale Tudo Championship 6 | Nov 01, 1998 | 1 | 2:18 | Brazil |
| Sieg | 44-11-4 | Tom Sauer | Submission (punches) | | Extreme Challenge 21 | Oct 17, 1998 | 1 | 1:57 | Hayward, United States |
| Unentschieden | 43-11-4 | Ikuhisa Minowa | Draw | | Pancrase: Advance 9 | Oct 04, 1998 | 2 | 3:00 | Korakuen Hall, Tokyo, Japan |
| Sieg | 43-11-3 | Albert Newberry | Submission (armbar) | | Southern Iowa Ultimate Fighting 2 | Sep 10, 1998 | 1 | 2:48 | Iowa, United States |
| Sieg | 42-11-3 | Robby Ruby | Submission (armbar) | | Southern Iowa Ultimate Fighting 2 | Sep 10, 1998 | 1 | 1:38 | Iowa, United States |
| Unentschieden | 41-11-3 | Larry Parker | Draw | | Extreme Challenge 20 | Aug 22, 1998 | 1 | 15:00 | Davenport, United States |
| Niederlage | 41-11-2 | Mario Roberto | Decision (unanimous) | | HOOKnSHOOT: Quest | Aug 14, 1998 | 1 | 30:00 | |
| Sieg | 41-10-2 | David Pa'aluhi | Technical submission | | SuperBrawl 8 | Aug 04, 1998 | 1 | 1:47 | Honolulu, United States |
| Sieg | 40-10-2 | Felix Mitchell | KO (punches) | | Midwest Fighting 1 | Jul 28, 1998 | 1 | 4:25 | |
| Sieg | 39-10-2 | Davey Conger | Submission (rear-naked choke) | | Midwest Fighting 1 | Jul 28, 1998 | 1 | 1:00 | |
| Niederlage | 38-10-2 | Brian Gassaway | Decision (unanimous) | | Cage Combat 3 | Jul 15, 1998 | 1 | 15:00 | Cleveland, United States |
| Sieg | 38-9-2 | Dave DeRosa | Submission (triangle choke) | | Cage Combat 3 | Jul 15, 1998 | 1 | 9:08 | Cleveland, United States |
| Sieg | 37-9-2 | Devin Love | Submission (rear-naked choke) | | Cage Combat 3 | Jul 15, 1998 | 1 | 0:26 | Cleveland, United States |
| Sieg | 36-9-2 | Mike Johnson | Submission (armbar) | | Southern Iowa Ultimate Fighting 1 | Jun 25, 1998 | 1 | 0:10 | Iowa, United States |
| Sieg | 35-9-2 | Marvin Jones | Submission (punches) | | Southern Iowa Ultimate Fighting 1 | Jun 25, 1998 | 1 | 2:11 | Iowa, United States |
| Sieg | 34-9-2 | Brad Anderson | Submission (triangle armbar) | | IFC 8: Showdown at Shooting Star | Jun 20, 1998 | 1 | 2:56 | Mahnomen, United States |
| Sieg | 33-9-2 | George Allen | KO (elbows) | | IFC 8: Showdown at Shooting Star | Jun 20, 1998 | 1 | 3:17 | Mahnomen, United States |
| Sieg | 32-9-2 | Guy Hinton | Submission (armbar) | | Kombat Zone 1 | Jun 13, 1998 | 1 | 1:36 | Indiana, United States |
| Sieg | 31-9-2 | Eric Hill | Submission (triangle choke) | | IFC 7: Cage Combat | May 30, 1998 | 1 | 6:49 | Quebec, Canada |
| Sieg | 30-9-2 | Jaymon Hotz | Submission (triangle armbar) | | Extreme Challenge 18 | May 15, 1998 | 1 | 1:57 | Iowa, United States |
| Sieg | 29-9-2 | Jeremy Morrison | Submission (punches) | | Fearless Freestyle Fighting 2 | May 09, 1998 | 1 | 1:19 | |
| Sieg | 28-9-2 | Jason Lautzenheiser | Submission (rear-naked choke) | | Fearless Freestyle Fighting 2 | May 09, 1998 | 1 | 0:44 | |
| Niederlage | 27-9-2 | Dan Severn | Submission (keylock) | | Gladiators 2 | Apr 18, 1998 | 1 | 10:39 | Iowa, United States |
| Sieg | 27-8-2 | Clayton Miller | Submission (armbar) | | Iowa Vale Tudo Championships 3 | Apr 10, 1998 | 1 | 2:20 | Iowa, United States |
| Sieg | 26-8-2 | Jason Powers | Submission (triangle choke) | | Iowa Vale Tudo Championships 3 | Apr 10, 1998 | 1 | 0:51 | Iowa, United States |
| Unentschieden | 25-8-2 | Jeremy Horn | Draw | | Extreme Challenge 16 | Mar 26, 1998 | 1 | 20:00 | Iowa, United States |
| Sieg | 25-8-1 | Jason Powers | Submission (punches) | | Iowa Vale Tudo Championships 2 | Mar 09, 1998 | 1 | 0:22 | Iowa, United States |
| Sieg | 24-8-1 | Bob Waters | Submission (armbar) | | Iowa Vale Tudo Championships 2 | Mar 09, 1998 | 1 | 2:00 | Iowa, United States |
| Sieg | 23-8-1 | Courtney Turner | Submission (punches) | | RnB 2: Bare Knuckle Brawl | Feb 20, 1998 | 1 | 1:16 | Atlanta, United States |
| Sieg | 22-8-1 | Sam Adkins | Submission (armbar) | | RnB 2: Bare Knuckle Brawl | Feb 20, 1998 | 1 | 0:45 | Atlanta, United States |
| Sieg | 21-8-1 | Jamie Schell | Submission (armbar) | | RnB 2: Bare Knuckle Brawl | Feb 20, 1998 | 1 | 0:36 | Atlanta, United States |
| Sieg | 20-8-1 | Greg Ford | Submission (rear-naked choke) | | Extreme Challenge 14 | Feb 13, 1998 | 1 | 1:40 | Hammond, United States |
| Niederlage | 19-8-1 | Jim Czajkowski | Submission (choke) | | Extreme Challenge 13 | Jan 16, 1998 | 1 | 2:33 | Kenosha, United States |
| Sieg | 19-7-1 | Jim Theobald | Submission (armbar) | | Extreme Challenge 13 | Jan 16, 1998 | 1 | 3:48 | Kenosha, United States |
| Sieg | 18-7-1 | Andy Schmidt | Submission (punches) | | Iowa Vale Tudo Championships 1 | Dec 29, 1997 | 1 | 0:43 | Iowa, United States |
| Sieg | 17-7-1 | Ben Pearce | Submission (punches) | | Iowa Vale Tudo Championships 1 | Dec 29, 1997 | 1 | 0:47 | Iowa, United States |
| Niederlage | 16-7-1 | Noe Hernandez | Decision (unanimous) | | Extreme Challenge 12 | Dec 13, 1997 | 1 | 20:00 | Kalamazoo, United States |
| Sieg | 16-6-1 | Eddie Moore | Submission (rear-naked choke) | | Extreme Challenge 12 | Dec 13, 1997 | 1 | 6:23 | Kalamazoo, United States |
| Sieg | 15-6-1 | Mike Delaney | Submission (guillotine choke) | | Extreme Challenge 11 | Nov 22, 1997 | 1 | 2:10 | lowa, United States |
| Sieg | 14-6-1 | Bob Magee | Submission (armbar) | | Extreme Challenge 10 | Oct 04, 1997 | 1 | 1:00 | Iowa, United States |
| Sieg | 13-6-1 | Paul Moller | KO (punch) | | IFC 6: Battle at Four Bears | Sep 20, 1997 | 1 | 0:14 | New Town, United States |
| Niederlage | 12-6-1 | Matt Lindland | Submission (choke) | | International Fighting Championships 6 | Sep 20, 1997 | 1 | 22:13 | New Town, United States |
| Sieg | 12-5-1 | Clayton Miller | Submission (triangle choke) | | Iowa Extreme Fighting 1 | Sep 10, 1997 | 1 | 0:51 | Iowa, United States |
| Sieg | 11-5-1 | Dan Croonquist | Submission (headlock) | | Iowa Extreme Fighting 1 | Sep 10, 1997 | 1 | 2:22 | Iowa, United States |
| Sieg | 10-5-1 | Ben Smaldino | Submission (armbar) | | Iowa Extreme Fighting 1 | Sep 10, 1997 | 1 | 0:47 | Iowa, United States |
| Unentschieden | 9-5-1 | Jeremy Horn | Draw | | Extreme Challenge 9 | Aug 30, 1997 | 1 | 15:00 | Davenport, United States |
| Sieg | 9-5 | Dennis Reed | Submission (triangle choke) | | Extreme Challenge 8 | Aug 09, 1997 | 1 | 5:19 | Iowa, United States |
| Niederlage | 8-5 | Brad Kohler | Submission (punches) | | HOOKnSHOOT: Absolute FC 2 | Jul 19, 1997 | 1 | 52:24 | |
| Sieg | 8-4 | Dennis Reed | KO (punch) | | Extreme Challenge 7 | Jun 25, 1997 | 1 | 0:33 | Iowa, United States |
| Sieg | 7-4 | Matt Andersen | Submission (punches) | | Extreme Challenge 7 | Jun 25, 1997 | 1 | 3:43 | Iowa, United States |
| Sieg | 6-4 | Dan Croonquist | Submission (keylock) | | Ultimate Enticer | Jun 24, 1997 | 1 | 1:11 | Evansdale, United States |
| Sieg | 5-4 | August Porquet | TKO (punches) | | Extreme Challenge 6 | May 10, 1997 | 1 | 4:21 | Michigan, United States |
| Niederlage | 4-4 | Brian Dunn | Decision (unanimous) | | Extreme Challenge 5 | Apr 18, 1997 | 1 | 15:00 | Waterloo, United States |
| Sieg | 4-3 | Angelo Rivera | TKO (punches) | | Extreme Challenge 5 | Apr 18, 1997 | 1 | 1:36 | Waterloo, United States |
| Niederlage | 3-3 | Ryan Jensen | Submission (triangle choke) | | Extreme Challenge 4 | Feb 22, 1997 | 1 | 1:40 | lowa, United States |
| Sieg | 3-2 | Dan Croonquist | Submission (armbar) | | Extreme Challenge 3 | Feb 15, 1997 | 1 | 0:50 | Davenport, United States |
| Niederlage | 2-2 | Scott Morton | Submission (triangle choke) | | Extreme Challenge 2 | Feb 01, 1997 | 1 | 1:46 | Iowa, United States |
| Sieg | 2-1 | Clayton Miller | KO (punches and elbows) | | Extreme Challenge 1 | Nov 23, 1996 | 1 | 3:09 | Iowa, United States |
| Sieg | 1-1 | Wesley Jamieson | Submission (guillotine choke) | | Brawl at the Ballpark 1 | Sep 01, 1996 | 1 | 4:16 | Iowa, United States |
| Niederlage | 0-1 | Dave Strasser | Submission (rear-naked choke) | | Gladiators 1 | Jul 26, 1996 | 1 | 3:07 | Iowa, United States |
