| Sieg | 78-22 (1) | Matt Kovacs  | Submission (Arm-Triangle Choke) |  | Fusion Fight League: Fights Under The Lights | Jul 31, 2021 | 2 | 0:52 | Billings, Montana |
| Sieg | 77-22 (1) | Jeremy Spelts | Submission (Arm-Triangle Choke) |  | Fusion Fight League: Fights Under The Lights | Sep 21, 2019 | 2 | 1:38 | Billings, Montana, United States |
| Sieg | 76-22 (1) | JR Lugo | Decision (Unanimous) |  | Road to M-1 USA 2 | Apr 04, 2019 | 3 | 5:00 | Winterhaven, California, USA |
| Niederlage | 75-22 (1) | Greg Rebello | TKO (Punches) | | CES 48: Wiuff vs. Rebello | Feb 02, 2018 | 1 | 0:23 | Lincoln, Rhode Island, United States |
| Sieg | 75-21 (1) | Ron Carter | Submission (Triangle Choke) | | KOTC - Equalizer | Oct 15, 2016 | 1 | 4:36 | Lac du Flambeau, Wisconsin, United States |
| Niederlage | 74-21 (1) | Brian Heden | KO (punch) | | No Mercy 5 | May 21, 2016 | 1 | 0:33 | Detroit Lakes, Minnesota, United States |
| Sieg | 74-20 (1) | Kevin Asplund | TKO (punches) | | Driller Promotions: O-Town Throwdown 2 | Apr 18, 2015 | 3 | 2:26 | Owatonna, United States |
| Niederlage | 73-20 (1) | Timothy Johnson | TKO (Punches) | | Dakota FC 19 - Fall Brawl | Oct 25, 2014 | 1 | 3:46 | Fargo, United States |
| Niederlage | 73-19 (1) | Chris Barnett | TKO (Punches) | | IGF - Inoki Genome Fight 2 | Aug 23, 2014 | 2 | 0:27 | Ryogoku Kokugikan, Japan |
| Sieg | 73-18 (1) | Danyelle Williams | Decision (unanimous) | | EB - Beatdown at 4 Bears 11 | Jun 27, 2014 | 3 | 5:00 | New Town, United States |
| Sieg | 72-18 (1) | Dallas Mitchell | Decision (unanimous) | | Dakota FC: Beatdown 11 | Jun 07, 2014 | 3 | 5:00 | New Town, United States |
| Sieg | 71-18 (1) | Brian Heden | TKO (punches) | | Driller Promotions: No Mercy 11 | May 24, 2014 | 1 | 4:17 | Detroit Lakes, United States |
| Sieg | 70-18 (1) | Terry Davinney | TKO (punches) | | Driller Promotions: O-Town Throwdown 1 | Apr 12, 2014 | 1 | 3:42 | Minnesota, United States |
| Cancelled Bout | | Sergei Kharitonov  | - |  | General Fighting Championship | Mar 01, 2014 | - | - | Krasnodar, Russia |
| Sieg | 69-18 (1) | Brett Murphy | Decision (Unanimous) | | Valhalla Cage Fighting - Countdown to War | Dec 31, 2013 | 3 | 5:00 | Minneapolis, United State |
| Niederlage | 68-18 (1) | Mike Kyle | KO (Punches) |  | CFA 11 - Kyle vs Wiuff | May 24, 2013 | 1 | 0:21 | Coral Gables, United States |
| Niederlage | 68-17 (1) | Ryan Martinez | KO (punches) | | Bellator 93 | Mar 21, 2013 | 1 | 0:18 | Lewiston, United States |
| Niederlage | 68-16 (1) | Maro Perak  | Decision (split) | | Abu Dhabi Warriors 1 | Nov 02, 2012 | 3 | 3:00 | United Arab Emirates  |
| Niederlage | 68-15 (1) | Attila Vegh  | KO (punches) | | Bellator 73 | Aug 24, 2012 | 1 | 0:25 | Tunica, United States |
| Sieg | 68-14 (1) | Tim Carpenter | Decision (unanimous) | | Bellator 72 | Jul 20, 2012 | 3 | 5:00 | Tampa, Florida, United States |
| Sieg | 67-14 (1) | Chris Davis | KO (punches) | | Bellator 71 | Jun 22, 2012 | 1 | 4:12 | Chester, United States |
| Sieg | 66-14 (1) | Anthony Gomez | Decision (unanimous) | | Bellator 60 | Mar 09, 2012 | 3 | 5:00 | Hammond, United States |
| Sieg | 65-14 (1) | Christian M'Pumbu  | Decision (unanimous) |  | Bellator 55 | Oct 22, 2011 | 3 | 5:00 | Yuma, Arizona, United States |
| Sieg | 64-14 (1) | Nick Baker | TKO (punches) | | Extreme Challenge 183 | May 14, 2011 | 1 | 2:11 | Black River Falls, United States |
| Sieg | 63-14 (1) | Richard White | Submission (punches) | | Extreme Challenge 170 | Dec 12, 2010 | 1 | 3:20 | Minneapolis, United States |
| Niederlage | 62-14 (1) | Tim Hague  | KO (punch) | | AMMA 5: Uprising | Oct 01, 2010 | 1 | 1:50 | Edmonton, United States, Canada |
| Sieg | 62-13 (1) | Josh Barnes | TKO (punches) | | Moosin: God of Martial Arts | May 21, 2010 | 1 | 0:34 | Worcester, United States |
| Sieg | 61-13 (1) | Jeff Monson | Decision (split) | | CFX / XKL: Mayhem in Minneapolis | Apr 24, 2010 | 3 | 5:00 | Minneapolis, United States |
| Sieg | 60-13 (1) | Chuck Hoskins | Decision (unanimous) | | Combat USA: 18 | Mar 26, 2010 | 3 | 5:00 | Onalaska, United States |
| NC | 59-13 (1) | Mike Kyle | NC (punch after the bell) | | KOTC Vengeance | Feb 12, 2010 | 2 | 5:00 | New Mexico, United States |
| Sieg | 59-13 | Justin Newcomb | TKO (punches) | | IFC: Wiuff vs. Newcomb | Jan 08, 2010 | 1 | 1:01 | Green Bay, United States |
| Sieg | 58-13 | Waylon Goldsmith | Submission (armbar) | | Fight Nation | Oct 03, 2009 | 1 | 0:20 | Rochester, United States |
| Sieg | 57-13 | Tracy Willis | Submission (punches) | | IFC: Caged Combat | Aug 15, 2009 | 2 | 1:46 | British Columbia, Canada |
| Sieg | 56-13 | Chris Barden | Submission (punches) | | Extreme Challenge 128 | May 30, 2009 | 1 | 0:41 | Rochester, United States |
| Niederlage | 55-13 | Stanislav Nedkov  | TKO (punches) | | World VRP: Sengoku 8 | May 02, 2009 | 3 | 0:42 | Tokyo, Japan  |
| Sieg | 55-12 | Steve Pilkington | TKO (punches) | | Extreme Challenge 119 | Jan 31, 2009 | 1 | 4:48 | Rochester, United States |
| Niederlage | 54-12 | Muhammed Lawal | TKO (punches) | | World Victory Road Presents: Sengoku 5 | Sep 28, 2008 | 1 | 2:11 | Tokyo, Japan |
| Sieg | 54-11 | Kazuyuki Fujita | KO (punches) |  | World Victory Road Presents: Sengoku 3 | Jun 08, 2008 | 1 | 1:24 | Saitama, Japan |
| Sieg | 53-11 | Marcelo Donald Pereira | Decision (unanimous) | | YAMMA: Pit Fighting 1 | Apr 11, 2008 | 1 | 5:00 | Atlantic City, United States |
| Sieg | 52-11 | Ricco Rodriguez | Decision (unanimous) | | YAMMA Pit Fighting | Apr 11, 2008 | 1 | 5:00 | Atlantic City, United States |
| Sieg | 51-11 | Chris Tuchscherer | Decision (unanimous) | | YAMMA Pit Fighting | Apr 11, 2008 | 3 | 5:00 | Atlantic City, United States |
| Sieg | 50-11 | Jesse Veium | TKO (punches) | | IFO: Fireworks in the Cage IV | Dec 28, 2007 | 1 | 3:25 | Las Vegas, United States |
| Sieg | 49-11 | Travis Fulton | TKO (punches) | | Smash: MMA | Nov 30, 2007 | 2 | 3:27 | Virginia, United States |
| Sieg | 48-11 | Wade Hamilton | TKO (punches) | | WFC: Downtown Throwdown | Sep 14, 2007 | 1 | 0:50 | Minneapolis, United States |
| Sieg | 47-11 | Sean Salmon | Submission (guillotine choke) | | IFO: Wiuff vs. Salmon | Sep 01, 2007 | 1 | 3:37 | Las Vegas, United States |
| Sieg | 46-11 | Ralph Kelly | Submission (punches) | | CCCF: Red River Riot 2 | Aug 11, 2007 | 3 | 0:45 | Thackerville, United States |
| Niederlage | 45-11 | Jared Hamman | KO (punches) | | IFC: Global Domination 2 | Jul 14, 2007 | 2 | N/A | Marksville, United States |
| Sieg | 45-10 | Josh Bennett | KO (punches) | | IFC: Global Domination 2 | Jul 14, 2007 | 1 | N/A | Marksville, United States |
| Sieg | 44-10 | Arthur Cesar | Submission | | IFC: Caged Combat | Apr 13, 2007 | 2 | 3:09 | Corpus Christi, United States |
| Niederlage | 43-10 | James Lee | Submission (guillotine choke) | | Pride 33 | Feb 24, 2007 | 1 | 0:39 | Las Vegas, United States |
| Sieg | 43-9 | Jason Guida | Decision (unanimous) | | XFO 14: Xtreme Fighting | Dec 09, 2006 | 3 | 5:00 | Peoria, United States |
| Sieg | 42-9 | Wojtek Kaszowski | Decision (unanimous) | | IFL: Gracie vs. Miletich | Sep 23, 2006 | 3 | 4:00 | Moline, Illinois, United States |
| Niederlage | 41-9 | Devin Cole | Decision (unanimous) | | IFL: Championship 2006 | Jun 03, 2006 | 3 | 4:00 | Atlantic City, United States |
| Niederlage | 41-8 | Alex Schoenauer | Submission (heel hook) | | IFL: Legends Championship 2006 | Apr 29, 2006 | 2 | 3:23 | Atlantic City, United States |
| Niederlage | 41-7 | Marvin Eastman | Decision (majority) | | EF 1: Supremacy | Mar 18, 2006 | 4 | 5:00 | British Columbia, Canada |
| Sieg | 41-6 | Fabiano Capoani | KO (punches) | | Battle at the Boardwalk (Day 1) | Feb 17, 2006 | 3 | 4:54 | Atlantic City, United States |
| Sieg | 40-6 | Ron Fields | Submission (elbows) | | Coliseum 2 | Dec 28, 2005 | 2 | 2:50 | Rochester, United States |
| Sieg | 39-6 | Jimmy Westfall | Submission (armbar) | | Extreme Challenge 65 | Oct 21, 2005 | 1 | 2:56 | Medina, United States |
| Niederlage | 38-6 | Jason Lambert | KO (punches) | | FFC 15: Fiesta Las Vegas | Sep 14, 2005 | 1 | 3:19 | Las Vegas, United States |
| Sieg | 38-5 | William Hill | TKO (doctor stoppage) | | IFC: Rock N' Rumble | Jul 30, 2005 | 1 | 5:00 | Reno, Nevada, United States |
| Sieg | 37-5 | Matt Horwich | Decision (unanimous) | | Extreme Challenge 62 | Jun 18, 2005 | 3 | 5:00 | Medina, United States |
| Sieg | 36-5 | Ramazan Akhadullaev | Decision (unanimous) | | Euphoria: USA vs. Russia | May 14, 2005 | 3 | 5:00 | Atlantic City, United States |
| Niederlage | 35-5 | Renato Sobral  | Submission (armbar) | | UFC 52 | Apr 16, 2005 | 2 | 0:24 | Las Vegas, Nevada, U.S. |
| Sieg | 35-4 | Antoine Jaoude | Decision (unanimous) | | Euphoria: USA vs World | Feb 26, 2005 | 3 | 5:00 | Atlantic City, United States |
| Sieg | 34-4 | Ibragim Magomedov | Decision (unanimous) |  | Euphoria: Road to the Titles | Oct 15, 2004 | 3 | 5:00 | Atlantic City, United States |
| Sieg | 33-4 | Josh Hendricks | Submission (punches) | | Extreme Challenge 59 | Sep 24, 2004 | 1 | 4:22 | Medina, United States |
| Sieg | 32-4 | Ruben Villareal | Submission (keylock) | | XKK: Eastc Side Rumble | Jul 24, 2004 | 2 | N/A | St. Paul, United States |
| Sieg | 31-4 | John Dixon | TKO (cut) | | Extreme Challenge 58 | Jun 11, 2004 | 1 | 2:33 | Medina, United States |
| Sieg | 30-4 | Leopoldo Montenegro | KO (slam and punches) | | Jungle Fight 2 | May 15, 2004 | 1 | 4:33 | Manaus, Brazil |
| Sieg | 29-4 | Demian Decorah | TKO (punches) | | Extreme Challenge 56 | Mar 26, 2004 | 1 | 2:20 | Medina, United States |
| Sieg | 28-4 | Roman Zentsov | TKO (cut) |  | Euphoria: Russia vs USA | Mar 13, 2004 | 2 | 2:46 | Atlantic City, United States |
| Sieg | 27-4 | Carlos Barreto | Decision (unanimous) | | Heat FC 2: Evolution | Dec 18, 2003 | 3 | 5:00 | Natal, Brazil |
| Sieg | 26-4 | Nate Sauer | KO (slam) | | Red Wing Rumble | Nov 30, 2003 | 1 | N/A | Minnesota, United States |
| Sieg | 25-4 | Travis Fulton | Decision (split) | | Iowa Challenge 11 | Oct 18, 2003 | 3 | 3:00 | Iowa, United States |
| Sieg | 24-4 | Mark Tullius | Decision (unanimous) | | CFM: Octogono Extremo | Sep 27, 2003 | 3 | 4:00 | Monterrey, Mexico |
| Sieg | 23-4 | Royce Louck | TKO (punches) | | IFA: Summer Bash | Aug 30, 2003 | 2 | 1:49 | Minnesota, United States |
| Sieg | 22-4 | Greg Wikan | Decision (unanimous) | | ROF 9: Eruption | Aug 09, 2003 | 3 | 5:00 | Baraboo, United States |
| Sieg | 21-4 | Tony Mendoza | Submission (forearm choke) | | Victory Fighting 5 | Jul 12, 2003 | 2 | 1:00 | Council Bluffs, United States |
| Sieg | 20-4 | DR Williams | Submission (punches) | | IFA: Explosion | Jul 05, 2003 | 3 | 0:43 | Minnesota, United States |
| Sieg | 19-4 | Chad Rafdel | Submission (punches) | | IFA: Clash of the Champions | May 24, 2003 | 2 | 0:27 | Owatonna, United States |
| Sieg | 18-4 | Royce Louck | Submission (punches) | | Bar Room Brawl 10 | Apr 30, 2003 | 1 | 1:11 | United States |
| Sieg | 17-4 | DR Williams | TKO (punches) | | Bar Room Brawl 5 | Mar 26, 2003 | 1 | 3:48 | United States |
| Niederlage | 16-4 | Kauai Kupihea | KO (punch) | | Rumble on the Rock 2 | Mar 15, 2003 | 1 | 4:21 | Hilo, Hawaii, United States |
| Sieg | 16-3 | Andy Montana | Decision (unanimous) | | RITC 45: Finally | Mar 01, 2003 | 3 | 3:00 | Phoenix, Arizona, United States |
| Sieg | 15-3 | Royce Louck | Submission (punches) | | Bar Room Brawl 1 | Feb 26, 2003 | 1 | 1:49 | United States |
| Sieg | 14-3 | Buddy Lewis | Submission (punches) | | Tennessee Shooto: Conquest | Jan 17, 2003 | 2 | 2:55 | Clarksville, United States |
| Sieg | 13-3 | Brian Shepard | Submission (punches) | | ICC 1: Retribution | Jan 12, 2003 | 1 | 4:00 | Minneapolis, United States |
| Niederlage | 12-3 | Vladimir Matyushenko  | Submission (punches) |  | UFC 40 | Nov 22, 2002 | 1 | 4:10 | Las Vegas, United States |
| Sieg | 12-2 | Jason Godsey | Decision | | UW: Godsey vs Wiuff | Oct 19, 2002 | 4 | 5:00 | Minneapolis, United States |
| Sieg | 11-2 | Johnathan Ivey | Decision | | UW: Minnesota | Aug 24, 2002 | 3 | 5:00 | Minneapolis, United States |
| Sieg | 10-2 | Travis Fulton | Decision (unanimous) | | Iowa Challenge 5 | Jul 13, 2002 | 3 | 5:00 | Iowa, United States |
| Sieg | 9-2 | Kevin Jordan | Decision (unanimous) | | Ultimate Wrestling | Jun 29, 2002 | 3 | 5:00 | Minneapolis, United States |
| Sieg | 8-2 | Tom McCloud | TKO (punches) | | Victory Fighting Championships 1 | Jun 16, 2002 | 1 | 0:35 | Iowa, United States |
| Niederlage | 7-2 | Wesley Correira | TKO (knees) | | SB 24: Return of the Heavyweights 2 | Apr 27, 2002 | 3 | 1:40 | Honolulu, Hawaii, United States |
| Sieg | 7-1 | Chad Rafdel | Submission (keylock) | | UW: St. Cloud 2 | Mar 16, 2002 | 1 | 1:40 | St. Cloud, United States |
| Sieg | 6-1 | Josh Mueller | Submission (punches) | | UW: St. Cloud 2 | Mar 16, 2002 | 1 | 0:32 | St. Cloud, United States |
| Sieg | 5-1 | Chad Rafdel | Submission (keylock) | | UW: Rumble at the Jungle | Mar 08, 2002 | 1 | 1:00 | Minnesota, United States |
| Sieg | 4-1 | Chad Brady | TKO (punches) | | UW: Rumble at the Jungle | Mar 08, 2002 | 1 | 0:22 | Minnesota, United States |
| Niederlage | 3-1 | Mike Radnov | TKO (cut) | | Extreme Challenge 46 | Feb 16, 2002 | 1 | 5:00 | Clive, Iowa, United States |
| Sieg | 3-0 | Keith Jardine | KO (punch) | | EC 46 | Feb 16, 2002 | 1 | 0:06 | Iowa, United States |
| Sieg | 2-0 | Lenn Walker | Submission (punches) | | UW: New Blood | Feb 01, 2002 | 1 | 1:15 | Minnesota, United States |
| Sieg | 1-0 | Jeff Greer | Submission (punches) | | UW: Rumble in Ramsey 1 | Sep 07, 2001 | 1 | N/A | Ramsey, United States |
