| Sieg | 101-19-7 | Alex Rozman | Decision (unanimous) | | Blue Blood MMA | Apr 28, 2012 | 3 | 5:00 | Davenport, Iowa, United States |
| Niederlage | 100-19-7 | Lee Beane | KO (punches) | | Paul Vandale Promotions: The Beast Comes East | May 20, 2011 | 1 | 3:28 | Worcester, United States |
| Niederlage | 100-18-7 | Ryan Fortin | KO (punches) | | King Of The Cage: Mile Zero | Apr 29, 2011 | 3 | 4:04 | Dawson Creek, Canada |
| Sieg | 100-17-7 | Aaron Garcia | Submission (neck crank) | | King of the Cage: Texas | Apr 16, 2011 | 1 | 2:18 | Lubbock, Texas, United States |
| Sieg | 99-17-7 | Cal Worsham | Decision (unanimous) | | Gladiator Challenge: Legends Collide 2 | Feb 20, 2011 | 3 | 5:00 | San Jacinto, California, United States |
| Sieg | 98-17-7 | Scott Fraser | Submission (arm-triangle choke) | | Elite-1 MMA: Tapping Out | Jan 29, 2011 | 1 | 4:59 | Moncton, New Brunswick, Canada |
| Sieg | 97-17-7 | William Hatch | Submission (arm-triangle choke) | | King of the Cage: Black Ops | Dec 04, 2010 | 1 | 4:23 | Cold Lake, Alberta, Canada |
| Sieg | 96-17-7 | Tom Benesocky | Submission (arm-triangle choke) | | King of the Cage 48 | Nov 21, 2010 | 1 | 1:33 | Edmonton, Alberta, Canada |
| Sieg | 95-17-7 | Chad Olmstead | TKO (punches) | | King of the Cage: Lock Down | Jul 30, 2010 | 2 | 1:27 | Edmonton, Alberta, Canada |
| Sieg | 94-17-7 | Sam Flood | Submission (guillotine choke) | | King of the Cage: Fearless | Apr 24, 2010 | 1 | 4:24 | Penticton, Canada |
| Sieg | 93-17-7 | Buddie Dixion | TKO (punches) | | King of the Cage: Thunderstruck ll | Mar 18, 2010 | 2 | 2:22 | Calgary, Alberta, Canada |
| Sieg | 92-17-7 | Eddie Trotter | TKO (doctor stoppage) | | GFC: Gladiator Fighting Championship | Oct 24, 2009 | 1 | 5:00 | Jenkins, Kentucky, United States |
| Sieg | 91-17-7 | Woody Young | Submission (arm-triangle choke) | | KOTC: Disputed | Jul 25, 2009 | 2 | 2:31 | Sault Ste. Marie, Michigan, United States |
| Sieg | 90-17-7 | Steve Eakins | Decision (unanimous) | | Gladiator Challenge: The Beast | May 16, 2009 | 3 | 5:00 | Elko, Nevada, United States |
| Niederlage | 89-17-7 | William Richey | Decision (unanimous) | | Iroquois: MMA Championships 7 | Jan 24, 2009 | 3 | 5:00 | Hagersville, Ontario, Canada |
| Niederlage | 89-16-7 | Pavel Botka | Decision | | Heaven or Hell: Hell Cage | May 03, 2008 | 1 | N/A | Prague, Czech Republic |
| Sieg | 89-15-7 | Damon Clark | Submission (kimura) | | WFC: Armageddon | Apr 12, 2008 | 1 | 2:30 | Denver, Colorado, United States |
| Sieg | 88-15-7 | Colin Robinson | Decision (unanimous) | | Cage Wars: Max Extreme fighting | Mar 09, 2008 | 3 | N/A | Belfast, Northern Ireland |
| Sieg | 87-15-7 | Ian Asham | Submission (kimura) | | Iroquois: MMA Championships II | Feb 09, 2008 | 1 | N/A | Ohsweken, Ontario, United States |
| Sieg | 86-15-7 | Don Richards | Decision (unanimous) | | KOTC: Bad Boys | Nov 21, 2007 | 3 | 5:00 | Mount Pleasant, Michigan, United States |
| Sieg | 85-15-7 | Jimmy Westfall | Decision (unanimous) | | Universal Fight Promotions | Oct 13, 2007 | 3 | 5:00 | New Mexico, United States |
| Sieg | 84-15-7 | Mark Smith | TKO (corner stoppage) | | Titans of the Pentagon | Sep 22, 2007 | 1 | N/A | San José, Costa Rica |
| Sieg | 83-15-7 | Victor Vincelette | Submission (choke) | | WFC: Rumble in the Red Rocks | Jun 09, 2007 | 1 | 1:35 | Camp Verde, Arizona, United States |
| Sieg | 82-15-7 | Terrell Pree | Submission (armbar) | | WVF: Minot | Apr 21, 2007 | 1 | 4:18 | Minot, North Dakota, United States |
| Sieg | 81-15-7 | Jason Keith | Submission (rear-naked choke) | | GC 60: Invasion | Mar 23, 2007 | 1 | 2:36 | Farmington, New Mexico, United States |
| Sieg | 80-15-7 | Kasey Geyer | Submission (rear-naked choke) | | CCCF: Riverwind Rumble | Feb 24, 2007 | 2 | 1:25 | Norman, Oklahoma, United States |
| Sieg | 79-15-7 | Clifford Coon | Submission (rear-naked choke) | | CCCF: Red River Riot | Feb 17, 2007 | 1 | 1:53 | Thackerville, Oklahoma, United States |
| Niederlage | 78-15-7 | Dave Legeno | Decision (unanimous) | | Cage Rage 20 | Feb 10, 2007 | 3 | 5:00 | London, England |
| Sieg | 78-14-7 | Wade Hamilton | Submission (americana) | | KOTC: Mass Destruction | Jan 26, 2007 | 1 | 3:08 | Mount Pleasant, Michigan, United States |
| Sieg | 77-14-7 | Chris Clark | Submission (heel hook) | | IFC: Rumble on the River 2 | Nov 10, 2006 | 1 | 3:08 | Kearney, Nebraska, United States |
| Sieg | 76-14-7 | Brian Heden  | Decision (split) | | NFA: Night of the Beast | Sep 23, 2006 | 4 | 5:00 | Fargo, North Dakota, United States |
| Sieg | 75-14-7 | Skip Hall | Submission (choke) | | Independent event | Aug 26, 2006 | 1 | N/A | Alabama, United States |
| Sieg | 74-14-7 | Lanny Griffin | Submission (scarf hold) | | Indiana Martial Arts | Aug 12, 2006 | 1 | 0:46 | Fort Wayne, Indiana, United States |
| Sieg | 73-14-7 | Robert Berry | Submission (rear-naked choke) | | MMA Total Combat 16 | Jun 03, 2006 | 1 | 4:21 | Spennymoor, England |
| Sieg | 72-14-7 | Victor Vincelette | Submission (punches) | | WFC: Rumble in the Rockies | Jan 21, 2006 | 1 | 1:22 | Loveland, Colorado, United States |
| Niederlage | 71-14-7 | Joop Kasteel | KO (punch) | | Rings Holland: Men of Honor | Dec 11, 2005 | 1 | 1:28 | Utrecht, Netherlands |
| Sieg | 71-13-7 | Tyson Smith | Submission (punches) | | Action Wrestling Entertainment | Oct 05, 2005 | 1 | 4:12 | Winnipeg, Manitoba, Canada |
| Niederlage | 70-13-7 | Victor Valimaki | Decision (unanimous) | | MFC 8: Resurrection | Sep 09, 2005 | 3 | 5:00 | Edmonton, Alberta, Canada |
| Sieg | 70-12-7 | Rick Collup | Submission (knees) | | GC 39: Titans Collide | Jul 17, 2005 | 2 | 3:11 | Porterville, California, United States |
| Sieg | 69-12-7 | Shannon Ritch | Submission (triangle choke) | | Extreme Wars: X-1 | Jul 02, 2005 | 2 | 1:05 | Honolulu, United States |
| Sieg | 68-12-7 | Shannon Ritch | Submission (americana) | | Northern Fighting Championships | Jun 03, 2005 | 2 | N/A | Alaska, United States |
| Niederlage | 67-12-7 | Bob Stines | Submission (punches) | | Warrior: MMA 4 | Mar 12, 2005 | 1 | 0:52 | Corbin, Kentucky, United States |
| Sieg | 67-11-7 | Cal Worsham | TKO (doctor stoppage) | | GC 34: Legends Collide | Jan 27, 2005 | 3 | 3:29 | Colusa, California, United States |
| Sieg | 66-11-7 | Lee Mein | TKO | | Continental Fighting Championships | Nov 20, 2004 | 2 | 1:41 | Saskatoon, Saskatchewan, Canada |
| Niederlage | 65-11-7 | James Thompson  | Decision (unanimous) | | UC 11: Wrath of the Beast | Sep 12, 2004 | 5 | 5:00 | Bristol, England  |
| Sieg | 65-10-7 | Chad Rafdel | TKO (corner stoppage) | | AFA: Beast | Jul 31, 2004 | 1 | 3:00 | Iowa, United States |
| Sieg | 64-10-7 | Hidetada Irie | Decision (unanimous) | | Gladiator FC: Day 1 | Jun 26, 2004 | 3 | 5:00 | Seoul, South Korea |
| Sieg | 63-10-7 | Ruben Villareal | Decision (split) | | GC 27: FightFest 2 | Jun 03, 2004 | 2 | 5:00 | Colusa, California, United States |
| Sieg | 62-10-7 | Greg Lockhart | Submission | | Dangerzone: Professional Level Cage Fighting | Apr 10, 2004 | 2 | 1:45 | Osceola, Iowa, United States |
| Sieg | 61-10-7 | Johnathan Ivey | Decision (unanimous) | | Hardcore Fighting Championships 3 | Mar 27, 2004 | 1 | N/A | Worcester, Massachusetts, United States |
| Niederlage | 60-10-7 | Tony Bonello | Submission (rear naked choke) | | XFC 4: Australia vs The World | Mar 19, 2004 | 1 | 1:36 | Brisbane, Australia |
| Niederlage | 60-9-7 | Ulysses Castro | Submission (verbal) | | Enter the Beast | Mar 06, 2004 | 3 | 2:45 | Nanaimo, British Columbia, Canada |
| Unentschieden | 60-8-7 | Jerry Vrbanovic | Draw | | KOTC 33: After Shock | Feb 20, 2004 | 2 | 5:00 | San Jacinto, California, United States |
| Niederlage | 60-8-6 | Seth Petruzelli | Decision (unanimous) | | King of the Cage 32: Bringing Heat | Jan 24, 2004 | 3 | 5:00 | Miami, United States |
| Sieg | 60-7-6 | Ray Seraille | Submission (armbar) | | Pacific X-Treme Combat | Jan 17, 2004 | 3 | 2:03 | Mangilao, Guam, United States |
| Sieg | 59-7-6 | Mathias Hughes | Submission | | Seasons Beatings | Dec 18, 2003 | 1 | 2:40 | Winnipeg, Canada |
| Unentschieden | 58-7-6 | Homer Moore | Draw | | RITC 54: 'The Beast' vs 'The Rock' | Oct 25, 2003 | 3 | 3:00 | Phoenix, Arizona, United States |
| Sieg | 58-7-5 | Gary Dudley | TKO (punches) | | Gladiator Challenge 18 | Aug 21, 2003 | 1 | 2:08 | Colusa, California, United States |
| Sieg | 57-7-5 | Dan Christison | Decision (split) | | KOTC 24: Mayhem | Jun 14, 2003 | 3 | 5:00 | Albuquerque, New Mexico, United States |
| Sieg | 56-7-5 | Shane Moore | Submission | | Hardcore Fighting Championships 1 | May 24, 2003 | 2 | 0:46 | Revere, Massachusetts, United States |
| Sieg | 55-7-5 | Cory Timmerman | Decision (unanimous) | | KOTC 23: Sin City | May 16, 2003 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Niederlage | 54-7-5 | Ulysses Castro | Decision | | MFC 6: Road To Gold | Feb 22, 2003 | 3 | 5:00 | Lethbridge, Alberta, Canada |
| Unentschieden | 54-6-5 | Pat Stano | Draw | | War at the Shore | Jan 17, 2003 | 3 | 5:00 | Atlantic City, New Jersey, United States |
| Sieg | 54-6-4 | Mike Ward | Submission (bulldog choke) | | UC 4: Eyes of the Beast | Dec 01, 2002 | 3 | 1:42 | Chippenham, England |
| Sieg | 53-6-4 | Justin Eilers | Decision (unanimous) | | VFC 3: Total Chaos | Nov 23, 2002 | 3 | 5:00 | Council Bluffs, Iowa, United States |
| Sieg | 52-6-4 | Mark Smith | Submission (americana) | | KOTC 18: Sudden Impact | Nov 01, 2002 | 1 | 2:56 | Reno, Nevada, United States |
| Sieg | 51-6-4 | Dan Christison | Decision | | Aztec Challenge 1 | Sep 06, 2002 | 3 | 5:00 | Ciudad Juárez, Mexico |
| Sieg | 50-6-4 | John Jensen | TKO (corner stoppage) | | KOTC 14: 5150 | Jun 19, 2002 | 1 | 5:00 | Bernalillo, New Mexico, United States |
| Sieg | 49-6-4 | Saint Paul, Minnesota, United States | Submission (punches) | | Dangerzone: Caged Heat | Apr 13, 2002 | 1 | 5:45 | New Town, North Dakota, United States |
| Sieg | 48-6-4 | Forrest Griffin | Decision (unanimous) | | RSF 5: New Blood Conflict | Oct 27, 2001 | 3 | 4:00 | Augusta, United States |
| Unentschieden | 47-6-4 | Travis Fulton | Draw | | Iowa Challenge 3 | Sep 22, 2001 | 3 | 5:00 | Waterloo, United States |
| Sieg | 47-6-3 | Lenn Walker | Submission (punches) | | UW: St. Paul | Jul 15, 2001 | 1 | 1:49 | Saint Paul, United States |
| Sieg | 46-6-3 | Travis Fulton | Decision (unanimous) | | WEC 1: Princes of Pain | Jun 30, 2001 | 3 | 5:00 | Lemoore, United States |
| Sieg | 45-6-3 | Wes Sims | Decision | | RSF 2 Attack at the Track | Jun 23, 2001 | 3 | 4:00 | Chester, United States |
| Sieg | 44-6-3 | Harry Moskowitz | Submission (americana) | | Reality Combat Fighting 11 | May 10, 2001 | 1 | 2:12 | Houma, Louisiana, United States |
| Niederlage | 43-6-3 | Jonathan Wiezorek | Submission (choke) | | RSF 1: Redemption in the Valley | Apr 21, 2001 | 2 | 1:03 | Wheeling, West Virginia, United States |
| Sieg | 43-5-3 | Aaron Keeney | Submission (americana) | | Dangerzone: Insane In Ft. Wayne | Nov 25, 2000 | 1 | 2:03 | Fort Wayne, Indiana, United States |
| Sieg | 42-5-3 | Travis Fulton | Submission (rear-naked choke) | | Dangerzone: Night of the Beast | Oct 28, 2000 | 1 | 2:01 | Lynchburg, United States |
| Niederlage | 41-5-3 | Pedro Rizzo  | TKO (leg kicks) | | UFC 27 | Sep 22, 2000 | 1 | 1:33 | New Orleans, United States |
| Sieg | 41-4-3 | Andrei Kopylov  | Decision (unanimous) | | Rings: Millennium Combine 3 | Aug 23, 2000 | 2 | 5:00 | Osaka, Japan |
| Sieg | 40-4-3 | John Dixson | Submission (americana) | | Continental Freefighting Alliance 2 | Jul 19, 2000 | 1 | 5:18 | Corinth, Mississippi, United States |
| Sieg | 39-4-3 | Ron Rumpf | Submission (americana) | | Dangerzone: Battle At The Bear | Jul 08, 2000 | 1 | 0:54 | New Town, North Dakota, United States |
| Sieg | 38-4-3 | Robert Stines | Submission (neck crank) | | Dangerzone: Ft. Wayne 2 | May 20, 2000 | 1 | 0:44 | Fort Wayne, Indiana, United States |
| Sieg | 37-4-3 | Marcus Silveira | Submission (arm-triangle choke) | | WEF 9: World Class | May 13, 2000 | 1 | 4:46 | Evansville, Indiana, United States |
| Sieg | 36-4-3 | Bart Vale | TKO (doctor stoppage) | | CFA 1: Collision at the Crossroads | Apr 25, 2000 | 2 | 0:36 | Corinth, Mississippi, United States |
| Niederlage | 35-4-3 | Josh Barnett | Submission (armbar) | | SuperBrawl 16 | Feb 08, 2000 | 4 | 1:21 | Honolulu, United States |
| Sieg | 35-3-3 | Mark Jaquith | Decision | | Dangerzone: Ft. Wayne | Nov 22, 1999 | 1 | 15:00 | Fort Wayne, Indiana, United States |
| Sieg | 34-3-3 | Phil Ortiz | Submission (americana) | | Extreme Challenge 28 | Oct 09, 1999 | 1 | 1:55 | Ogden, Utah, United States |
| Sieg | 33-3-3 | David Ferguson | Submission (punches) | | Dangerzone: Ft. Smith | Sep 18, 1999 | 1 | 8:36 | Fort Wayne, Indiana, United States |
| Sieg | 32-3-3 | Nick Starks | Decision | | Ultimate Reality Fighting | Jul 18, 1999 | 1 | 0:00 | Orlando, Florida, United States |
| Sieg | 31-3-3 | Brad Kohler | TKO (slam) | | Ultimate Wrestling | Jun 25, 1999 | 1 | 7:57 | Cleveland, Ohio, United States |
| Sieg | 30-3-3 | Slade Martin | Submission (americana) | | Dangerzone: Mahnomen | Jun 19, 1999 | 1 | 3:30 | Mahnomen, Minnesota, United States |
| Sieg | 29-3-3 | Ross Quam | Submission (jaw lock) | | Brawl in the Black Hills 1 | May 15, 1999 | 1 | N/A | Rapid City, South Dakota, United States |
| Sieg | 28-3-3 | Kevin Rosier | Submission (bulldog choke) | | Cage Combat 1 | Dec 08, 1998 | 1 | 1:00 | Conesville, Iowa, United States |
| Sieg | 27-3-3 | Joe Frailey | Submission (armbar) | | SuperBrawl 9 | Sep 19, 1998 | 1 | 4:02 | El Paso, Texas, United States |
| Unentschieden | 26-3-3 | Pat Miletich | Draw | | Extreme Challenge 20 | Aug 22, 1998 | 1 | 20:00 | Davenport, Iowa, United States |
| Sieg | 26-3-2 | Chris Franco | TKO (doctor stoppage) | | SuperBrawl 8 | Aug 04, 1998 | 1 | 4:55 | Honolulu, Hawaii, United States |
| Sieg | 25-3-2 | Sam Adkins | Submission (Fatigue) | | International Fighting Championships 8: Showdown at Shooting Star | Jun 20, 1998 | 1 | 12:53 | Mahnomen, Minnesota, United States |
| Sieg | 24-3-2 | Steve Miller | Submission (rear-naked choke) | | World Shoot Wrestling | Jun 12, 1998 | 1 | 5:45 | Pasadena, Texas, United States |
| Sieg | 23-3-2 | John Calvo | TKO (punches) | | SuperBrawl 7 | Apr 25, 1998 | 1 | 3:38 | Guam, United States |
| Sieg | 22-3-2 | Travis Fulton | Submission (keylock) | | Gladiators 2 | Apr 18, 1998 | 1 | 10:39 | Iowa, United States |
| Sieg | 21-3-2 | Kevin Rosier | TKO (knees) | | Extreme Challenge 15 | Feb 27, 1998 | 1 | 0:53 | Muncie, United States |
| Unentschieden | 20-3-2 | Kimo Leopoldo | Draw (time limit) | | Pride 1 | Oct 11, 1997 | 1 | 30:00 | Tokyo, Japan |
| Sieg | 20-3-1 | John Renfroe | Submission (americana) | | International Fighting Championships 6: Battle at Four Bears | Sep 20, 1997 | 1 | 2:28 | New Town, North Dakota, United States |
| Sieg | 19-3-1 | John Dixson | Submission (punches) | | International Fighting Championships 5: Battle in the Bayou | Sep 05, 1997 | 1 | 2:33 | Baton Rouge, Louisiana, United States |
| Sieg | 18-3-1 | Lance Gibson | Submission (americana) | | SuperBrawl 5 | Aug 23, 1997 | 1 | 26:22 | Guam, United States |
| Sieg | 17-3-1 | Paul Buentello | Submission (headlock) | | USWF 6 | Aug 16, 1997 | 1 | 2:55 | Amarillo, United States |
| Sieg | 16-3-1 | Ebenezer Fontes Braga | TKO (doctor stoppage) | | International Vale Tudo Championship 1: Real Fight Tournament | Jul 06, 1997 | 1 | 8:17 | Brazil |
| Unentschieden | 15-3-1 | Jeremy Horn | Draw | | Extreme Challenge 7 | Jun 25, 1997 | 1 | 20:00 | Council Bluffs, Iowa, US |
| Sieg | 15-3 | John Renfroe | TKO (punches) | | Extreme Challenge 6 | May 10, 1997 | 1 | 2:29 | Battle Creek, Michigan, United States |
| Niederlage | 14-3 | Mark Coleman | Submission (choke) | | UFC 12 | Feb 07, 1997 | 1 | 2:57 | Dothan, Alabama, U.S. |
| Sieg | 14-2 | Steven Goss | Submission (rear-naked choke) | | Extreme Challenge 1 | Nov 23, 1996 | 1 | 1:53 | Des Moines, Iowa, United States |
| Sieg | 13-2 | Mitsuhiro Matsunaga | Submission (reverse armbar) | | U-Japan | Nov 17, 1996 | 1 | 1:32 | Tokyo, Japan |
| Sieg | 12-2 | Mario Neto | Decision | | Universal Vale Tudo Fighting 4 | Oct 22, 1996 | 1 | 40:00 | Brazil |
| Sieg | 11-2 | Dennis Reed | Submission (neck crank) | | Brawl at the Ballpark 1 | Sep 01, 1996 | 1 | 4:10 | Davenport, Iowa, United States |
| Sieg | 10-2 | Doug Murphy | Submission (americana) | | Vale Tudo Japan 1996 | Jul 07, 1996 | 1 | 3:23 | Urayasu, Chiba, Japan |
| Sieg | 9-2 | Ken Shamrock | Decision (split) | | UFC 9 | May 17, 1996 | 1 | 30:00 | Detroit, United States |
| Sieg | 8-2 | Paul Varelans | Submission (arm-triangle choke) | | Ultimate Ultimate 1995 | Dec 16, 1995 | 1 | 1:40 | Denver, Colorado, United States |
| Sieg | 7-2 | David Abbott | Decision (unanimous) | | Ultimate Ultimate 1995 | Dec 16, 1995 | 1 | 18:00 | Denver, Colorado, United States |
| Sieg | 6-2 | Oleg Taktarov | Decision (unanimous) | | Ultimate Ultimate 1995 | Dec 16, 1995 | 1 | 30:00 | Denver, Colorado, US |
| Niederlage | 5-2 | Ken Shamrock | Submission (guillotine choke) | | UFC 6 | Jul 14, 1995 | 1 | 2:14 | Casper, United States |
| Sieg | 5-1 | Dave Beneteau | Submission (americana) | | UFC 5 | Apr 07, 1995 | 1 | 3:01 | Charlotte, North Carolina, United States |
| Sieg | 4-1 | Joe Charles | Submission (rear naked choke) | | UFC 5 | Apr 07, 1995 | 1 | 1:38 | Charlotte, North Carolina, United States |
| Sieg | 3-1 | Oleg Taktarov | TKO (cut) | | UFC 5 | Apr 07, 1995 | 1 | 4:21 | Charlotte, North Carolina, US |
| Niederlage | 2-1 | Royce Gracie | Submission (triangle choke) |  | UFC 4 | Dec 16, 1994 | 1 | 15:49 | Tulsa, Oklahoma, United States |
| Sieg | 2-0 | Marcus Bossett | Submission (arm-triangle choke) | | UFC 4 | Dec 16, 1994 | 1 | 0:52 | Tulsa, Oklahoma, United States |
| Sieg | 1-0 | Anthony Macias | Submission (triangle choke) | | UFC 4 | Dec 16, 1994 | 1 | 15:49 | Tulsa, Oklahoma, United States |
