| Niederlage | 32-8-2 (1) | Neiman Gracie  | Submission (Heel Hook) |  | Bellator 246: Archuleta vs Mix | Sep 12, 2020 | 2 | 4:47 | Uncasville, Connecticut, United States  |
| Unentschieden | 32-7-2 (1) | Rory MacDonald  | Draw (Majority) |  | Bellator Welterweight World Grand Prix Tournament | Apr 27, 2019 | 5 | 5:00 | San Jose, California, United States |
| Sieg | 32-7-1 (1) | Paul Daley  | Decision (unanimous) |  | Bellator 199: Bader vs King Mo | May 12, 2018 | 3 | 5:00 | San Jose, California, United States |
| Sieg | 31-7-1 (1) | Brian Foster | Submission (Rear-Naked Choke) | | PFL 1: Fitch vs Foster | Jun 30, 2017 | 2 | 3:12 | Daytona, Florida, United States |
| Sieg | 30-7-1 (1) | Jake Shields | Decision (unanimous) |  | WSOF 34: Gaethje vs Firmino | Dec 31, 2016 | 5 | 5:00 | New York City, New York, United States |
| Sieg | 29-7-1 (1) | João Zeferino | Decision (Unanimous) | | WSOF 30: Branch vs Starks | Apr 02, 2016 | 5 | 5:00 | Las Vegas, United States |
| Sieg | 28-7-1 (1) | Yushin Okami  | Decision (Unanimous) |  | WSOF 24: Fitch vs Okami | Oct 17, 2015 | 3 | 5:00 | Mashantucket, United States |
| Niederlage | 27-7-1 (1) | Rousimar Palhares | Submission (kneebar) |  | WSOF 16: Palhares vs Fitch | Dec 13, 2014 | 1 | 1:30 | United States |
| Sieg | 27-6-1 (1) | Dennis Hallman | Decision (unanimous) | | WSOF 11: Gaethje vs Newell | Jul 05, 2014 | 3 | 5:00 | Daytona, Florida, United States |
| Sieg | 26-6-1 (1) | Marcelo Alfaya | Decision (split) |  | WSOF 6: Burkman vs Carl | Oct 26, 2013 | 3 | 5:00 | Coral Gables, United States |
| Niederlage | 25-6-1 (1) | Josh Burkman | Technical Submission | | WSOF 3: Fitch vs Burkman 2 | Jun 14, 2013 | 1 | 0:41 | Las Vegas, United States |
| Niederlage | 25-5-1 (1) | Demian Maia | Decision (unanimous) | | UFC 156: Aldo vs Edgar | Feb 02, 2013 | 3 | 5:00 | Las Vegas, United States |
| Sieg | 25-4-1 (1) | Erick Silva | Decision (unanimous) | | UFC 153: Aldo vs Koch | Oct 13, 2012 | 3 | 5:00 | Rio de Janeiro, Brazil |
| Niederlage | 24-4-1 (1) | Johny Hendricks | KO (punch) | | UFC 141 | Dec 30, 2011 | 1 | 0:12 | Nevada, United States |
| Unentschieden | 24-3-1 (1) | B.J. Penn | Draw (majority) |  | UFC 127 | Feb 27, 2011 | 3 | 5:00 | New South Wales, Australia |
| Sieg | 24-3 (1) | Thiago Alves | Decision (unanimous) |  | UFC 117 | Aug 07, 2010 | 3 | 5:00 | Oakland, United States |
| Sieg | 23-3 (1) | Ben Saunders | Decision (unanimous) | | UFC 111 | Mar 27, 2010 | 3 | 5:00 | Newark, United States |
| Sieg | 22-3 (1) | Mike Pierce | Decision (unanimous) | | UFC 107 | Dec 12, 2009 | 3 | 5:00 | Memphis, United States |
| Sieg | 21-3 (1) | Paulo Thiago | Decision (unanimous) | | UFC 100 | Jul 11, 2009 | 3 | 5:00 | Nevada, United States |
| Sieg | 20-3 (1) | Akihiro Gono | Decision (unanimous) |  | UFC 94 | Jan 31, 2009 | 3 | 5:00 | Nevada, United States |
| Niederlage | 19-3 (1) | Georges St. Pierre | Decision (unanimous) |  | UFC 87 | Aug 09, 2008 | 5 | 5:00 | Minneapolis, United States |
| Sieg | 19-2 (1) | Chris Wilson | Decision (unanimous) | | UFC 82 | Mar 01, 2008 | 3 | 5:00 | Columbus, United States |
| Sieg | 18-2 (1) | Diego Sanchez | Decision (split) | | UFC 76 | Sep 22, 2007 | 3 | 5:00 | Anaheim, United States |
| Sieg | 17-2 (1) | Roan Carneiro | Submission (rear naked choke) | | UFC Fight Night: Stout vs Fisher | Jun 12, 2007 | 2 | 1:07 | Hollywood, United States |
| Sieg | 16-2 (1) | Luigi Fioravanti | Submission (rear naked choke) | | UFC 68 | Mar 03, 2007 | 2 | 3:05 | Columbus, United States |
| Sieg | 15-2 (1) | Kuniyoshi Hironaka | Decision (unanimous) | | UFC 64 | Oct 14, 2006 | 3 | 5:00 | Nevada, United States |
| Sieg | 14-2 (1) | Thiago Alves | TKO (upkick and punches) | | UFC Ultimate Fight Night 5 | Jun 28, 2006 | 2 | 4:37 | Nevada, United States |
| Sieg | 13-2 (1) | Josh Burkman | Submission (rear naked choke) | | UFC Ultimate Fight Night 4 | Apr 06, 2006 | 2 | 4:57 | Nevada, United States |
| Sieg | 12-2 (1) | Brock Larson | Decision (unanimous) | | UFC Ultimate Fight Night 2 | Oct 03, 2005 | 3 | 5:00 | Nevada, United States |
| Sieg | 11-2 (1) | Jeff Joslin | Decision (split) | | Freedom Fight: Canada vs USA | Jul 09, 2005 | 3 | 5:00 | Hull, Quebec, Canada |
| Sieg | 10-2 (1) | Alex Serdyukov | TKO (punches) | | MMA Mexico: Day 1 | Dec 17, 2004 | 2 | 2:15 | Ciudad Juárez, Mexico |
| Sieg | 9-2 (1) | Jorge Ortiz | Decision (unanimous) | | MMA Mexico: Day 1 | Dec 17, 2004 | 3 | 5:00 | Ciudad Juárez, Mexico |
| Sieg | 8-2 (1) | Mike Seal | TKO (punches) | | MMA Mexico: Day 1 | Dec 17, 2004 | 2 | 2:35 | Ciudad Juárez, Mexico |
| Sieg | 7-2 (1) | Kengo Ura | Decision (unanimous) | | Venom: First Strike | Sep 18, 2004 | 2 | 5:00 | Nevada, United States |
| Sieg | 6-2 (1) | Shonie Carter | Submission (slam) | | Shooto USA: Warrior Spirit – Evolution | Nov 14, 2003 | 3 | 0:41 | Nevada, United States |
| Sieg | 5-2 (1) | Gabe Garcia | TKO (punches) | | X-1 | Sep 06, 2003 | 1 | 2:41 | Yokohama, Japan |
| Sieg | 4-2 (1) | Kyle Jensen | Decision (unanimous) | | Battleground 1: War Cry | Jul 19, 2003 | 3 | 5:00 | Chicago, United States |
| NC | 3-2 (1) | Solomon Hutcherson | No Contest | | HOOKnSHOOT: Boot Camp 1.1 | Mar 08, 2003 | 2 | N/A | Evansville, United States |
| Niederlage | 3-2 | Wilson Gouveia | KO (knee) | | Absolute Fighting Champ. 1 | Dec 13, 2002 | 1 | 3:38 | Florida, United States |
| Sieg | 3-1 | Eric Tix | KO (punch) | | Ultimate Wrestling | Sep 07, 2002 | 1 | 0:07 | Fridley, United States |
| Sieg | 2-1 | Dan Hart | Submission (guillotine choke) | | Ultimate Wrestling | Sep 07, 2002 | 1 | 1:14 | Fridley, United States |
| Sieg | 1-1 | Felix Alvarez | KO (Punch) | | MMA - Cuando Hierve la Sangre | Aug 31, 2002 | 1 | 0:10 | Monterrey, Mexico |
| Niederlage | 0-1 | Mike Pyle | Submission (rear naked choke) | | Revolution FC 1: The Beginning | Jul 13, 2002 | 1 | 2:35 | Nevada, United States |
