| Niederlage | 26-12-1 | Igor Pokrajac  | KO (punches) |  | UFC 140 | Dec 10, 2011 | 1 | 0:35 | Ontario, Canada  |
| Sieg | 26-11-1 | Mike Massenzio | Decision (unanimous) | | UFC 131 | Jun 11, 2011 | 3 | 5:00 | Columbia, Canada |
| Sieg | 25-11-1 | Goran Reljić | Decision (unanimous) | | UFC 122 | Nov 13, 2010 | 3 | 5:00 | Oberhausen, Germany |
| Niederlage | 24-11-1 | Stephan Bonnar  | TKO (knee and punches) |  | UFC 116 | Jul 03, 2010 | 2 | 3:08 | Nevada, United States |
| Sieg | 24-10-1 | Stephan Bonnar | TKO (cut) |  | UFC 110 | Feb 21, 2010 | 3 | 1:04 | Sydney, Australia |
| Niederlage | 23-10-1 | Brandon Vera | Decision (unanimous) |  | UFC 102 | Aug 29, 2009 | 3 | 5:00 | Portland, United States |
| Sieg | 23-9-1 | Andre Gusmão | KO (punches) | | UFC 98 | May 23, 2009 | 1 | 3:17 | Las Vegas, United States |
| Sieg | 22-9-1 | Brian Stann | Submission (kimura) |  | UFC 97 | Apr 18, 2009 | 1 | 3:53 | Montreal, Canada |
| Sieg | 21-9-1 | Shane Primm | Submission (kimura) | | TUF 8 Finale | Dec 13, 2008 | 2 | 3:27 | Las Vegas, United States |
| Sieg | 20-9-1 | Marcus Hicks | Submission (kimura) | | UCW 11: Hell in the Cage | Apr 11, 2008 | 1 | - | Manitoba, Canada |
| Sieg | 19-9-1 | Alex Andrade | DQ (low blows) | | Ring of Combat 18 | Mar 07, 2008 | 2 | 4:46 | New Jersey, United States |
| Sieg | 18-9-1 | Robert Villegas | DQ (refusal to fight) | | HDNet Fights: Reckless Abandon | Dec 15, 2007 | 2 | 3:15 | Texas, United States |
| Niederlage | 17-9-1 | Ben Rothwell | TKO (punches) | | IFL: 2007 Semifinals | Aug 02, 2007 | 1 | 0:13 | East Rutherford, United States |
| Niederlage | 17-8-1 | Reese Andy | Decision (split) | | IFL: Everett | Jun 01, 2007 | 3 | 4:00 | Washington, United States |
| Sieg | 17-7-1 | Dan Christison | Decision (unanimous) | | IFL: Los Angeles | May 17, 2007 | 3 | 4:00 | California, United States |
| Niederlage | 16-7-1 | Mike Whitehead | Decision (unanimous) | | IFL: Championship Final | Dec 29, 2006 | 3 | 4:00 | Connecticut, United States |
| Sieg | 16-6-1 | Devin Cole | Submission (armbar) | | IFL: World Championship Semifinals | Nov 02, 2006 | 2 | 1:14 | Oregon, United States |
| Sieg | 15-6-1 | Icho Larenas | TKO (doctor stoppage) | | TKO 27: Reincarnation | Sep 29, 2006 | 3 | 0:00 | Quebec, Canada |
| Sieg | 14-6-1 | Tom Howard | TKO (strikes) | | IFL: Portland | Sep 09, 2006 | 1 | 3:47 | Oregon, United States |
| Sieg | 13-6-1 | Yan Pellerin | Submission (kimura) | | TKO 26: Heatwave | Jun 30, 2006 | 1 | 1:30 | Quebec, Canada |
| Niederlage | 12-6-1 | Ben Rothwell | TKO (punches) | | IFL: Legends Championship 2006 | Apr 29, 2006 | 1 | 3:59 | New Jersey, United States |
| Unentschieden | 12-5-1 | Mike Kyle | Technical Draw | | Strikeforce: Shamrock vs. Gracie | Mar 10, 2006 | 1 | 2:02 | California, United States |
| Niederlage | 12-5 | Brian Schall | TKO (strikes) | | TKO 24: Eruption | Jan 28, 2006 | 3 | 3:00 | Quebec, Canada |
| Niederlage | 12-4 | Martin Desilets | TKO (doctor stoppage) | | TKO 23: Extreme | Nov 05, 2005 | 2 | 1:30 | Quebec, Canada |
| Niederlage | 12-3 | Matt Horwich | Submission (rear-naked choke) | | Freedom Fight: Canada vs. USA | Jul 09, 2005 | 2 | 0:52 | Quebec, Canada |
| Sieg | 12-2 | Ron Fields | Submission (armbar) | | UCW 2: Caged Inferno | Jun 18, 2005 | 1 | 1:25 | Manitoba, Canada |
| Sieg | 11-2 | Jason Day | TKO (punches) | | RR 8 - Roadhouse Rumble 8 | Apr 09, 2005 | 1 | 2:08 | Lethbringe, Canada |
| Sieg | 10-2 | Troy Hadley | TKO (Punches) | | NFA: Super Brawl | Jan 29, 2005 | 1 | - | North Dakota, United States |
| Sieg | 9-2 | Chris Thiel | KO (punches) | | Ultimate Cage Wars 1 | Oct 29, 2004 | 1 | - | Manitoba, Canada |
| Sieg | 8-2 | Wyatt Lewis | KO (punches) | | RITR 1 - Rage in the Ring 1 | Oct 23, 2004 | 1 | - | Lethbringe, Canada |
| Sieg | 7-2 | Lee Mein | Submission (strikes) | | WFF 7: Professional Shooto | Jul 23, 2004 | 2 | 2:06 | Columbia, Canada |
| Niederlage | 6-2 | Chris Tuchscherer | Decision (unanimous) | | NFA: Title Trials | Jun 12, 2004 | 3 | 3:00 | Minnesota, United States |
| Sieg | 6-1 | Dennis Stull | TKO (Punches) | | ICC - Trials 2 | Apr 30, 2004 | 1 | - | Minnesota, United States |
| Sieg | 5-1 | Jack Burton | Submission (rear-naked choke) | | ICC - Trials 2 | Apr 30, 2004 | 1 | - | Minnesota, United States |
| Sieg | 4-1 | Matt Lafromboise | Submission (punches) | | DFC 1 - Dakota Fighting Championships 1 | Apr 17, 2004 | 1 | 1:14 | North Dakota, United States |
| Sieg | 3-1 | Kyle Olsen | Submission (exhaustion) | | NFA: Best Damn Fights | Mar 20, 2004 | 1 | 4:55 | North Dakota, United States |
| Sieg | 2-1 | Ben Konecnec | TKO (Punches) | | IFA: Ultimate Trials | Feb 27, 2004 | 1 | 0:26 | Iowa, United States |
| Niederlage | 1-1 | Jason Day | Decision (unanimous) | | RR 8 - Roadhouse Rumble 8 | Nov 01, 2003 | 2 | 5:00 | Lethbringe, Canada |
| Sieg | 1-0 | Matt Lafromboise | Submission (strikes) | | Absolute Ada Fights 4 | Sep 13, 2003 | 1 | 3:23 | Minnesota, United States |
