| Niederlage | 27-8 | Joey Beltran  | Submission (north south choke) |  | Bellator 116 | Apr 11, 2014 | 3 | 3:06 | Temecula, United States |
| Sieg | 27-7 | Houston Alexander | Decision (unanimous) |  | Bellator 99 | Sep 13, 2013 | 3 | 5:00 | Temecula, United States |
| Niederlage | 26-7 | Ryan Bader | Submission (guillotine choke) | | UFC on Fox 6: Johnson vs Dodson | Jan 26, 2013 | 1 | 0:50 | Chicago, United States |
| Niederlage | 26-6 | Alexander Gustafsson  | TKO (punches) |  | UFC 141 | Dec 30, 2011 | 1 | 2:13 | Las Vegas, United States |
| Sieg | 26-5 | Jason Brilz | KO (punches) |  | UFC 129 | Apr 30, 2011 | 1 | 0:20 | Toronto, Ontario, Canada  |
| Sieg | 25-5 | Alexandre Ferreira | TKO (punches and elbows) |  | UFC 122 | Nov 13, 2010 | 1 | 2:20 | Oberhausen, Germany  |
| Niederlage | 24-5 | Jon Jones | TKO (elbows) |  | UFC Live: Jones vs. Matyushenko | Aug 01, 2010 | 1 | 1:52 | San Diego, United States |
| Sieg | 24-4 | Eliot Marshall | Decision (split) |  | UFC Live: Vera vs. Jones | Mar 21, 2010 | 3 | 5:00 | Broomfield, United States |
| Sieg | 23-4 | Igor Pokrajac  | Decision (unanimous) |  | UFC 103 | Sep 19, 2009 | 3 | 5:00 | Dallas, Texas, United States |
| Sieg | 22-4 | Jason Lambert | Decision (unanimous) | | Call to Arms I | May 16, 2009 | 3 | 5:00 | Ontario, United States |
| Niederlage | 21-4 | Antonio Rogério Nogueira  | KO (knee) |  | Affliction: Day of Reckoning | Jan 24, 2009 | 2 | 4:26 | Anaheim, United States |
| Sieg | 21-3 | Jamal Patterson | TKO (punches) |  | IFL: New Jersey | Apr 04, 2008 | 2 | 3:35 | East Rutherford, United States |
| Sieg | 20-3 | Alex Schoenauer | Decision (unanimous) |  | IFL: World Grand Prix Semifinals | Nov 03, 2007 | 3 | 4:00 | Hoffman Estates, United States |
| Sieg | 19-3 | Tim Boetsch | Decision (unanimous) |  | IFL: 2007 Semifinals | Aug 02, 2007 | 3 | 4:00 | East Rutherford, United States |
| Sieg | 18-3 | Aaron Stark | TKO (punches) |  | IFL: Everett | Jun 01, 2007 | 1 | 2:49 | Everett, United States |
| Sieg | 17-3 | Justin Levens | TKO (punches) |  | IFL Los Angeles | Mar 17, 2007 | 1 | 3:53 | Los Angeles, United States |
| Sieg | 16-3 | Dwayne Compton | Submission (armbar) |  | IFL Houston | Feb 02, 2007 | 1 | 1:47 | Houston, Texas, United States |
| Sieg | 15-3 | Anthony Ruiz | Submission (armbar) | | Extreme Wars 3: Bay Area Brawl | Jun 03, 2006 | 1 | 2:03 | Oakland, United States |
| Sieg | 14-3 | Carlos Barreto | TKO (knee injury) | | Jungle Fight 4 | May 21, 2005 | 1 | 0:26 | Manaus, Brazil |
| Niederlage | 13-3 | Andrey Arlovski  | KO (punch) |  | UFC 44 | Sep 26, 2003 | 1 | 2:10 | Paradise, United States |
| Sieg | 13-2 | Pedro Rizzo | Decision (unanimous) |  | UFC 41 | Feb 28, 2003 | 3 | 5:00 | Las Vegas, United States |
| Sieg | 12-2 | Travis Wiuff | Submission (punches) |  | UFC 40 | Nov 22, 2002 | 1 | 4:10 | Las Vegas, United States |
| Sieg | 11-2 | Antonio Rogério Nogueira | Decision (unanimous) |  | UFO: Legend | Aug 08, 2002 | 3 | 5:00 | Tokyo, Japan  |
| Niederlage | 10-2 | Tito Ortiz | Decision (unanimous) | | UFC 33 | Sep 28, 2001 | 5 | 5:00 | Las Vegas, United States |
| Sieg | 10-1 | Yuki Kondo | Decision (unanimous) |  | UFC 32 | Jun 29, 2001 | 3 | 5:00 | East Rutherford, United States |
| Sieg | 9-1 | Tom Sauer | TKO (cut) | | WEF: New Blood Conflict | Aug 26, 2000 | 2 | 2:17 | Evansville, United States |
| Sieg | 8-1 | John Marsh | Decision (unanimous) | | IFC: Warriors Challenge 6 | Mar 25, 2000 | 3 | 5:00 | Friant, California, United States |
| Niederlage | 7-1 | Vernon White | Decision (split) | | IFC: Montreal Cage Combat | Oct 09, 1999 | 1 | 5:00 | Montreal, Quebec, Canada |
| Sieg | 7-0 | Travis Fulton | Submission (neck crank) | | IFC: Fighters Revenge | Apr 02, 1999 | 1 | 15:33 | Montreal, Quebec |
| Sieg | 6-0 | Kenji Kawaguchi | KO (punches) | | Vale Tudo Japan 1998 | Oct 25, 1998 | 1 | 3:10 | Urayasu, Chiba Japan |
| Sieg | 5-0 | Joe Pardo | Decision | | Rumble in Reno | Sep 04, 1998 | 3 | 5:00 | Reno, Nevada, United States |
| Sieg | 4-0 | Anthony Macias | TKO (doctor stoppage) | | IFC 7: Cage Combat | May 30, 1998 | 1 | 0:16 | Montreal, Quebec |
| Sieg | 3-0 | Anthony Macias | Submission (punches) | | IFC 5: Battle in the Bayou | Sep 05, 1997 | 1 | 2:59 | Baton Rouge, United States |
| Sieg | 2-0 | Robert Lalonde | Submission (punches) | | IFC 5: Battle in the Bayou | Sep 05, 1997 | 1 | 2:27 | Baton Rouge, United States |
| Sieg | 1-0 | Vernon White | Submission (neck crank) | | IFC 5: Battle in the Bayou | Sep 05, 1997 | 1 | 5:44 | Baton Rouge, United States |
