| Niederlage | 17-11-2 | Roger Gracie  | Decision (Unanimous) |  | Strikeforce - Rockhold vs Kennedy | Jul 14, 2012 | 3 | 5:00 | Portland, United States |
| Niederlage | 17-10-2 | Luke Rockhold  | TKO (punches) |  | Strikeforce: Rockhold vs. Jardine | Jan 07, 2012 | 1 | 4:26 | Las Vegas, United States |
| Unentschieden | 17-9-2 | Gegard Mousasi  | Draw (majority) |  | Strikeforce: Diaz vs. Daley | Apr 09, 2011 | 3 | 5:00 | California, United States |
| Sieg | 17-9-1 | Aron Lofton | TKO (punches) | | Fresquez Productions - Double Threat | Mar 04, 2011 | 1 | 3:30 | New Mexico, United States |
| Sieg | 16-9-1 | Francisco France | Decision (unanimous) | | Nemesis | Dec 10, 2010 | 3 | 5:00 | Dominican Republic |
| Niederlage | 15-9-1 | Trevor Prangley  | Decision (split) |  | Shark Fights 13 | Sep 11, 2010 | 3 | 5:00 | Texas, United States |
| Niederlage | 15-8-1 | Matt Hamill | Decision (majority) |  | Team Liddell vs Team Ortiz Finale | Jun 19, 2010 | 3 | 5:00 | Las Vegas, United States |
| Niederlage | 15-7-1 | Ryan Bader | KO (punch) |  | UFC 110 | Feb 21, 2010 | 3 | 2:10 | Acer Arena, Sydney, Australia |
| Niederlage | 15-6-1 | Thiago Silva | TKO (punches) |  | UFC 102 | Aug 29, 2009 | 1 | 1:35 | Oregon, United States |
| Niederlage | 15-5-1 | Quinton Jackson | Decision (unanimous) |  | UFC 96 | Mar 07, 2009 | 3 | 5:00 | Columbus, Ohio, United States |
| Sieg | 15-4-1 | Brandon Vera | Decision (split) |  | UFC 89 | Oct 18, 2008 | 3 | 5:00 | Birmingham, England |
| Niederlage | 14-4-1 | Wanderlei Silva | KO (punches) | | UFC 84 | May 24, 2008 | 1 | 0:36 | Las Vegas, United States |
| Sieg | 14-3-1 | Chuck Liddell | Decision (split) | | UFC 76 | Sep 22, 2007 | 3 | 5:00 | Anaheim, United States |
| Niederlage | 13-3-1 | Houston Alexander | KO (punches) | | UFC 71 | May 26, 2007 | 1 | 0:48 | Las Vegas, United States |
| Sieg | 13-2-1 | Forrest Griffin | TKO (punches) |  | UFC 66 | Dec 30, 2006 | 1 | 4:41 | Las Vegas, United States |
| Sieg | 12-2-1 | Wilson Gouveia | Decision (unanimous) | | TUF 3 Finale | Jun 24, 2006 | 3 | 5:00 | Nevada, United States |
| Niederlage | 11-2-1 | Stephan Bonnar | Decision (unanimous) | | UFN 4 | Apr 06, 2006 | 3 | 5:00 | Nevada, United States |
| Sieg | 11-1-1 | Mike Whitehead | Decision (unanimous) | | UFC 57 | Feb 04, 2006 | 3 | 5:00 | Nevada, United States |
| Sieg | 10-1-1 | Kerry Schall | TKO (leg kicks) | | TUF 2 Finale | Nov 05, 2005 | 2 | 3:28 | Nevada, United States |
| Sieg | 9-1-1 | Arman Gambaryan | Submission (armbar) | | M-1 MFC | Dec 04, 2004 | 1 | 2:37 | Moscow, Russia 2004 |
| Sieg | 8-1-1 | Tom Elrite | KO (punches) | | IE | Nov 13, 2004 | 1 | 2:50 | New Mexico, United States |
| Sieg | 7-1-1 | Brian Bair | TKO (punches) | | Venom Fight | Sep 18, 2004 | 1 | 2:02 | California, United States |
| Unentschieden | 6-1-1 | Keiichiro Yamamiya | Draw | | Pancrase 8 | Oct 04, 2003 | 2 | 5:00 | Osaka, Japan |
| Sieg | 6-1 | George Allen | Decision (unanimous) | | KOTC 24 | Jun 14, 2003 | 2 | 5:00 | New Mexico, United States |
| Sieg | 5-1 | Allan Sullivan | TKO (punches) | | KOTC 21 | Feb 21, 2003 | 2 | 1:56 | New Mexico, United States |
| Sieg | 4-1 | Bryan Pardoe | KO (punches) | | KOTC 20 | Dec 15, 2002 | 1 | 1:09 | New Mexico, United States |
| Sieg | 3-1 | Philip Preece | Decision (unanimous) | | KOTC 14 | Jun 19, 2002 | 2 | 5:00 | New Mexico, United States |
| Niederlage | 2-1 | Travis Wiuff | KO (punch) | | EC 46 | Feb 16, 2002 | 1 | 0:06 | Iowa, United States |
| Sieg | 2-0 | Abe Andujo | TKO (punches) | | RITC 31 | Nov 07, 2001 | 1 | 1:20 | Arizona, United States |
| Sieg | 1-0 | Amir Rahnavardi | Submission (armbar) | | GC 5 | Aug 19, 2001 | 1 | 2:44 | Denver, United States |
