| Niederlage | 32-21-2 (3) | Takanori Gomi  | KO (punches) |  | Rizin 11 | Jul 29, 2018 | 1 | 2:33 | Saitama, Japan |
| Niederlage | 32-20-2 (3) | Maurice Jackson | TKO (punches) |  | SCL 65: Destination | Feb 10, 2018 | 2 | 1:50 | Denver, Colorado, United States |
| Niederlage | 32-19-2 (3) | Israel Adesanya  | TKO (punches) |  | Australian Fighting Championship 20 | Jul 28, 2017 | 1 | 4:48 | Melbourne, Australia  |
| Niederlage | 32-18-2 (3) | Muslim Salikhov  | KO (spinning hook kick) |  | Kunlun Fight MMA 12 | Jun 01, 2017 | 1 | 1:33 | Yantai, China |
| Niederlage | 32-17-2 (3) | Chidi Njokuani  | Decision (Unanimous) |  | Bellator 171: Guillard vs Njokuani | Jan 27, 2017 | 3 | 5:00 | Mulvane, Kansas, United States |
| NC | 32-16-2 (3) | David Rickels | NC (overturned) |  | Bellator 159 | Jul 22, 2016 | 1 | 2:14 | Mulvane, Kansas, United States |
| Niederlage | 32-16-2 (2) | Derek Campos | TKO (punches) |  | Bellator 149: Shamrock vs Gracie 3 | Feb 19, 2016 | 2 | 0:32 | Houston, United States |
| Niederlage | 32-15-2 (2) | Brandon Girtz | Decision (split) |  | Bellator 141 | Aug 28, 2015 | 3 | 5:00 | Temecula, California, United States |
| Cancelled Bout | | Ozzy Dugulubgov | - |  | WSOF 20 | Apr 10, 2015 | - | - | Mashantucket, Connecticut, United States |
| Niederlage | 32-14-2 (2) | Justin Gaethje | Decision (split) |  | WSOF 15 | Nov 15, 2014 | 3 | 5:00 | Tampa, Florida, United States |
| Sieg | 32-13-2 (2) | Gesias Cavalcante  | TKO (punches and elbows) |  | WSOF 11 | Jul 05, 2014 | 2 | 2:36 | Daytona Beach, Florida, United States |
| Niederlage | 31-13-2 (2) | Michael Johnson | Decision (unanimous) |  | UFC Fight Night: Gustafsson vs. Manuwa | Mar 08, 2014 | 3 | 5:00 | London, England |
| NC | 31-12-2 (2) | Ross Pearson  | NC (illegal knee) |  | UFC Fight Night: Machida vs. Munoz | Oct 26, 2013 | 1 | 1:57 | Manchester, England, United Kingdom |
| Sieg | 31-12-2 (1) | Mac Danzig | KO (punches) | | UFC on Fox: Johnson vs. Moraga | Jul 27, 2013 | 2 | 2:47 | Seattle, Washington, United States |
| Niederlage | 30-12-2 (1) | Jamie Varner | Decision (split) | | UFC 155 | Dec 29, 2012 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Niederlage | 30-11-2 (1) | Donald Cerrone | KO (head kick & punch) | | UFC 150 | Aug 11, 2012 | 1 | 1:16 | Denver, United States |
| Sieg | 30-10-2 (1) | Fabricio Camoes | Decision (unanimous) | | UFC 148 | Jul 07, 2012 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Niederlage | 29-10-2 (1) | Jim Miller | Submission (rear-naked choke) | | UFC on FX: Guillard vs. Miller | Jan 20, 2012 | 1 | 3:04 | Nashville, Tennessee, United States |
| Niederlage | 29-9-2 (1) | Joe Lauzon | Submission (rear-naked choke) | | UFC 136 | Oct 08, 2011 | 1 | 0:47 | Houston, Texas, United States |
| Sieg | 29-8-2 (1) | Shane Roller | KO (punches) | | UFC 132 | Jul 02, 2011 | 1 | 2:12 | Las Vegas, Nevada, United States |
| Sieg | 28-8-2 (1) | Evan Dunham | TKO (knees) | | UFC: Fight For The Troops 2 | Jan 22, 2011 | 1 | 2:58 | Fort Hood, Texas, United States |
| Sieg | 27-8-2 (1) | Jeremy Stephens | Decision (split) | | UFC 119 | Sep 25, 2010 | 3 | 5:00 | Indiana, United States |
| Sieg | 26-8-2 (1) | Waylon Lowe | TKO (knee to the body) | | UFC 114 | May 29, 2010 | 1 | 3:28 | Las Vegas, Nevada, United States |
| Sieg | 25-8-2 (1) | Ronys Torres | Decision (unanimous) | | UFC 109 | Feb 06, 2010 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Niederlage | 24-8-2 (1) | Nate Diaz | Submission (guillotine choke) | | UFC FN: Diaz vs. Guillard | Sep 16, 2009 | 2 | 2:13 | Oklahoma City, United States |
| Sieg | 24-7-2 (1) | Gleison Tibau | Decision (split) | | The Ultimate Fighter: United States vs. United Kingdom Finale | Jun 20, 2009 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Sieg | 23-7-2 (1) | Dennis Siver  | KO (punches) |  | UFC 86: Jackson vs Griffin | Jul 05, 2008 | 1 | 0:36 | Las Vegas, United States |
| Sieg | 22-7-2 (1) | Eric Regan | Decision (unanimous) | | RITC 105: Friday Night Fights | Mar 07, 2008 | 3 | 3:00 | Phoenix, Arizona, United States |
| Niederlage | 21-7-2 (1) | Rich Clementi | Submission (rear-naked choke) | | UFC 79 | Dec 29, 2007 | 1 | 4:40 | Las Vegas, Nevada, United States |
| Niederlage | 21-6-2 (1) | Joe Stevenson | Submission (guillotine choke) | | UFC Fight Night: Stevenson vs. Guillard | Apr 05, 2007 | 1 | 0:27 | Las Vegas, Nevada, United States |
| Sieg | 21-5-2 (1) | Gabe Ruediger | TKO (body punch) | | UFC 63 | Sep 23, 2006 | 2 | 1:01 | Anaheim, California, United States |
| Sieg | 20-5-2 (1) | Rick Davis | KO (punch) | | UFC 60 | May 27, 2006 | 1 | 1:37 | Los Angeles, California, United States |
| Niederlage | 19-5-2 (1) | Josh Neer | Submission (triangle choke) | | UFC Fight Night 3 | Jan 16, 2006 | 1 | 4:20 | Las Vegas, Nevada, United States |
| Sieg | 19-4-2 (1) | Marcus Davis | TKO (doctor stoppage) | | The Ultimate Fighter 2 Finale | Nov 05, 2005 | 2 | 2:55 | Las Vegas, Nevada, United States |
| NC | 18-4-2 (1) | Roger Huerta | NC (overturned) | | Freestyle Fighting Championships 14 | Mar 05, 2005 | 3 | 5:00 | Biloxi, Mississippi, United States |
| Sieg | 18-4-2 | Peter Kaljevic | TKO (elbows) | | Freestyle Fighting Championships 14 | Mar 05, 2005 | 1 | 2:24 | Biloxi, Mississippi, United States |
| Sieg | 17-4-2 | Darrell Smith | TKO (punches) | | Freestyle Fighting Championships 14 | Mar 05, 2005 | 1 | 3:07 | Biloxi, Mississippi, United States |
| Sieg | 16-4-2 | Rob Emerson | Decision (split) | | RCF: Cold Hearted | Feb 19, 2005 | 3 | 5:00 | Biloxi, Mississippi, United States |
| Niederlage | 15-4-2 | Santino Defranco | Submission (triangle choke) | | ISCF: Domination at the DAC | Nov 20, 2004 | 1 | 2:33 | Atlanta, Georgia, United States |
| Sieg | 15-3-2 | Jason Hathaway | TKO (punches) | | ISCF: Compound Fracture | Oct 15, 2004 | 1 | 0:37 | Atlanta, Georgia, United States |
| Unentschieden | 14-3-2 | LaVerne Clark | Draw | | RCF: Duel in the Delta | Sep 25, 2004 | 3 | 5:00 | Tunica, Mississippi, United States |
| Sieg | 14-3-1 | Angel Nievens | Decision (unanimous) | | FFC 11: Explosion | Sep 10, 2004 | 3 | 5:00 | Biloxi, Mississippi, United States |
| Niederlage | 13-3-1 | Ryan Stout | Submission (armbar) | | Battle of New Orleans 14 | Jul 10, 2004 | 1 | 2:55 | New Orleans, Louisiana, United States |
| Unentschieden | 13-2-1 | Lee King | Draw | | Battle of New Orleans 13 | Jun 25, 2004 | 3 | 5:00 | New Orleans, Louisiana, United States |
| Sieg | 13-2 | Rich Miller | TKO (punches) | | Extreme Challenge 58 | Jun 11, 2004 | 2 | 2:07 | Medina, Minnesota, United States |
| Sieg | 12-2 | Kyle Bradley | TKO (punches) | | Freestyle Fighting Championships 9 | May 14, 2004 | 1 | 4:20 | Biloxi, Mississippi, United States |
| Niederlage | 11-2 | Jake Short | Decision (unanimous) | | Freestyle Fighting Championships 8 | Mar 05, 2004 | 3 | 5:00 | Biloxi, Mississippi, United States |
| Niederlage | 11-1 | Carlo Prater | Submission (guillotine choke) | | Freestyle Fighting Championships 7 | Dec 19, 2003 | 1 | 2:32 | Biloxi, Mississippi, United States |
| Sieg | 11-0 | Justin Wieman | TKO (punches) | | ISCF: Anarchy in August | Aug 02, 2003 | 2 | N/A | Atlanta, Georgia, United States |
| Sieg | 10-0 | Kyle Bradley | Submission (armbar) | | FFC 6: No Love | Jul 11, 2003 | 1 | 2:54 | Biloxi, Mississippi, United States |
| Sieg | 9-0 | Paul Purcell | TKO (punches) | | Art of War 2 | Jun 21, 2003 | 1 | N/A | Kalispell, Montana, United States |
| Sieg | 8-0 | Diego Saraiva | KO (punches) | | ISCF: May Madness | May 23, 2003 | 1 | N/A | Atlanta, Georgia, United States |
| Sieg | 7-0 | Alex Kronofsky | KO (punch) | | Battle of New Orleans 6 | Apr 26, 2003 | 1 | 1:32 | New Orleans, Louisiana, United States |
| Sieg | 6-0 | Aaron Williams | TKO (punches) | | Freestyle Fighting Championships 5 | Apr 25, 2003 | 1 | 1:43 | Biloxi, Mississippi, United States |
| Sieg | 5-0 | Victor Estrada | Submission (armbar) | | Battle of New Orleans 5 | Mar 22, 2003 | 1 | 2:04 | New Orleans, Louisiana, United States |
| Sieg | 4-0 | Rod Ramirez | TKO (punches) | | Battle of New Orleans 4 | Feb 15, 2003 | 2 | 0:32 | New Orleans, Louisiana, United States |
| Sieg | 3-0 | Joe Jordan | Decision (unanimous) | | Battle of New Orleans 3 | Jan 18, 2003 | 2 | 5:00 | New Orleans, Louisiana, United States |
| Sieg | 2-0 | Jonathon Hargroder | KO (punch) | | Battle of New Orleans 2 | Dec 21, 2002 | 1 | 0:31 | New Orleans, Louisiana, United States |
| Sieg | 1-0 | Calvin Martin | Decision (unanimous) | | Battle of New Orleans 1 | Nov 16, 2002 | 2 | 5:00 | New Orleans, Louisiana |
