| Niederlage | 11-7 | Chris Lytle | Decision (unanimous) | | UFC 119 | Sep 25, 2010 | 3 | 5:00 | India, United States |
| Sieg | 11-6 | Frank Trigg  | KO (punches) |  | UFC 109 | Feb 06, 2010 | 1 | 2:23 | Las Vegas, Nevada, United States |
| Niederlage | 10-6 | Matt Hughes | Decision (unanimous) |  | UFC 98 | May 23, 2009 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Niederlage | 10-5 | Georges St. Pierre  | TKO (knees to the body) |  | UFC 83 | Apr 19, 2008 | 2 | 4:45 | Montreal, Quebec, Canada |
| Sieg | 10-4 | Georges St. Pierre | TKO (punches) |  | UFC 69 | Apr 07, 2007 | 1 | 3:25 | Houston, United States |
| Sieg | 9-4 | Chris Lytle | Decision (split) | | The Ultimate Fighter: The Comeback Finale | Nov 11, 2006 | 3 | 5:00 | Nevada, United States |
| Niederlage | 8-4 | Karo Parisyan | Decision (unanimous) | | UFC 53 | Jun 04, 2005 | 3 | 5:00 | New Jersey, United States |
| Sieg | 8-3 | Ivan Menjivar | Decision (unanimous) | | UFC 48 | Jun 19, 2004 | 3 | 5:00 | Nevada, United States |
| Sieg | 7-3 | Jeff Curran | Decision (unanimous) | | UFC 46 | Jan 31, 2004 | 3 | 5:00 | Nevada, United States |
| Niederlage | 6-3 | Din Thomas | Decision (split) | | UFC 41 | Feb 28, 2003 | 3 | 5:00 | New Jersey, United States |
| Niederlage | 6-2 | B.J. Penn | Decision (unanimous) | | UFC 39 | Sep 27, 2002 | 3 | 5:00 | Uncasville, Connecticut, US |
| Sieg | 6-1 | Kelly Dullanty | Submission (triangle choke) | | UFC 36 | Mar 22, 2002 | 1 | 2:58 | Nevada, United States |
| Sieg | 5-1 | Yves Edwards | Decision (majority) | | UFC 33 | Sep 28, 2001 | 3 | 5:00 | Nevada, United States |
| Niederlage | 4-1 | Shonie Carter | KO (spinning back fist) | | UFC 31 | May 04, 2001 | 3 | 4:51 | New Jersey, United States |
| Sieg | 4-0 | Greg Melisi | Submission (armbar) | | VATV 11 | Feb 24, 2001 | 1 | 0:46 | New York, United States |
| Sieg | 3-0 | Jeff Telvi | Submission (guillotine choke) | | VATV 7 | Jan 29, 2000 | 1 | 0:30 | New York, United States |
| Sieg | 2-0 | Graham Lewis | Submission (armbar) | | VATV 6 | Aug 21, 1999 | 1 | 1:04 | New York, United States |
| Sieg | 1-0 | Khamzat Vitaev | Submission (rear-naked choke) | | VATV 3 | Apr 01, 1999 | 1 | 0:36 | New York, United States |
