| Loss | 24-20 | Alan Belcher  | Decision (Split) |  | Gamebred Bareknuckle MMA: Nelson vs. Belcher | Nov 10, 2023 | 3 | 5:00 | Biloxi, Mississippi, United States |
| Win | 24-19 | Dillon Cleckler | TKO (Punches) |  | GFC 4 - Gamebred Fighting Championship 4 | May 05, 2023 | 1 | 3:24 | Fort Lauderdale, Florida, United States |
| Loss | 23-19 | Valentin Moldavsky  | Decision (Unanimous) |  | Bellator 244: Bader vs Nemkov | Aug 21, 2020 | 3 | 5:00 | Uncasville, Connecticut, United States |
| Loss | 23-18 | Frank Mir | Decision (Unanimous) |  | Bellator 231: Mir vs Nelson 2 | Oct 25, 2019 | 3 | 5:00 | Uncasville, Connecticut, United States |
| Loss | 23-17 | Mirko Filipović  | Decision (Unanimous) |  | Bellator 216: MVP vs Daley | Feb 16, 2019 | 3 | 5:00 | Uncasville, Connecticut, United States |
| Loss | 23-16 | Sergei Kharitonov | KO (punches and knee) |  | Bellator 207: Mitrione vs Bader | Oct 12, 2018 | 1 | 4:59 | Uncasville, Connecticut, United States |
| Loss | 23-15 | Matt Mitrione | Decision (majority) |  | Bellator Heavyweight World Grand Prix Tournament | Feb 16, 2018 | 3 | 5:00 | Uncasville, Connecticut, United States |
| Win | 23-14 | Javy Ayala | Decision (unanimous |  | Bellator 183: Henderson vs Pitbull | Sep 23, 2017 | 3 | 5:00 | San Jose, California, United States |
| Loss | 22-14 | Alexander Volkov | Decision (unanimous) |  | UFC on FOX 24: Johnson vs Reis | Apr 15, 2017 | 3 | 5:00 | Nashville, Tennessee, United States |
| Win | 22-13 | Antonio Silva  | KO (punches) |  | UFC Fight Night 95: Cyborg vs Lansberg | Sep 24, 2016 | 2 | 4:10 | Federal District, Brazil |
| Loss | 21-13 | Derrick Lewis | Decision (split) |  | UFC Fight Night 90: Dos Anjos vs Alvarez | Jul 07, 2016 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Win | 21-12 | Jared Rosholt | Decision (unanimous) |  | UFC Fight Night 82: Hendricks vs Thompson | Feb 06, 2016 | 3 | 5:00 | Las Vegas, United States |
| Loss | 20-12 | Josh Barnett | Decision (Unanimous) |  | UFC Fight Night: Barnett vs Nelson | Sep 26, 2015 | 3 | 5:00 | Saitama, Japan |
| Loss | 20-11 | Alistair Overeem  | Decision (Unanimous) |  | UFC 185: Pettis vs Dos Anjos | Mar 14, 2015 | 3 | 5:00 | Dallas, Texas, United States |
| Loss | 20-10 | Mark Hunt  | KO (Punch) |  | UFC Fight Night: Hunt vs Nelson | Sep 20, 2014 | 2 | 3:00 | Saitama Super Arena, Japan  |
| Win | 20-9 | Antonio Rodrigo Nogueira | KO (punch) |  | UFC Fight Night: Nogueira vs Nelson | Apr 11, 2014 | 1 | 3:37 | United Arab Emirates |
| Loss | 19-9 | Daniel Cormier | Decision (unanimous) |  | UFC 166: Velasquez vs Dos Santos III | Oct 19, 2013 | 3 | 5:00 | Houston, United States |
| Loss | 19-8 | Stipe Miocic | Decision (unanimous) |  | UFC 161: Evans vs Henderson | Jun 15, 2013 | 3 | 5:00 | Winnipeg, Canada |
| Win | 19-7 | Cheick Kongo  | KO (punch) |  | UFC 159: Jones vs Sonnen | Apr 27, 2013 | 1 | 2:03 | New Jersey, United States |
| Win | 18-7 | Matt Mitrione | KO (punches) | | UFC - The Ultimate Fighter 16 Finale | Dec 15, 2012 | 1 | 2:58 | Las Vegas, United States |
| Win | 17-7 | Dave Herman | KO (punch) |  | UFC 146: Dos Santos vs Mir | May 26, 2012 | 1 | 0:51 | Las Vegas, United States |
| Loss | 16-7 | Fabricio Werdum | Decision |  | UFC 143 | Feb 04, 2012 | 3 | 5:00 | Las Vegas, United States |
| Win | 16-6 | Mirko Filipović | TKO (punches) | | UFC 137 | Oct 29, 2011 | 3 | 1:30 | Las Vegas, United States |
| Loss | 15-6 | Frank Mir | Decision (unanimous) | | UFC 130 | May 28, 2011 | 3 | 5:00 | Las Vegas, United States |
| Loss | 15-5 | Junior dos Santos | Decision (unanimous) |  | UFC 117 | Aug 07, 2010 | 3 | 5:00 | Oakland, United States |
| Win | 15-4 | Stefan Struve | TKO (punches) |  | UFC Fight Night: Florian vs. Gomi | Mar 31, 2010 | 1 | 0:39 | Charlotte, United States |
| Win | 14-4 | Brendan Schaub | KO (punch) |  | The Ultimate Fighter: Heavyweights Finale | Dec 05, 2009 | 1 | 3:45 | Las Vegas, United States |
| Loss | 13-4 | Jeff Monson | Decision (unanimous) | | SRP: March Badness | Mar 21, 2009 | 3 | 5:00 | Pensacola, United States |
| Loss | 13-3 | Andrey Arlovski  | KO (punch) | | EliteXC: Heat | Oct 04, 2008 | 2 | 1:46 | Sunrise, United States |
| Win | 13-2 | Brad Imes | TKO (punches) | | IFL: Connecticut | May 16, 2008 | 1 | 2:55 | Uncasville, United States |
| Win | 12-2 | Fabiano Scherner | TKO (punches) | | IFL: Las Vegas | Feb 29, 2008 | 1 | 3:20 | Las Vegas, United States |
| Win | 11-2 | Antoine Jaoude | KO (punch) | | IFL: World Grand Prix Finals | Dec 29, 2007 | 2 | 0:22 | Uncasville, United States |
| Win | 10-2 | Bryan Vetell | TKO (punches) | | IFL: World Grand Prix Semifinals | Nov 03, 2007 | 3 | 1:01 | Chicago, Illinois, United States |
| Win | 9-2 | Shane Ott | Decision (unanimous) | | IFL: Las Vegas | Jun 16, 2007 | 3 | 4:00 | Las Vegas, United States |
| Loss | 8-2 | Ben Rothwell | Decision (split) | | IFL: Moline | Apr 07, 2007 | 3 | 4:00 | Moline, Illinois, United States |
| Win | 8-1 | Mario Rinaldi | TKO (punches) | | Bodog Fight: Costa Rica Combat | Feb 17, 2007 | 1 | 2:38 | Costa Rica |
| Win | 7-1 | Vince Lucero | TKO (punches) | | IFL: Oakland | Jan 19, 2007 | 1 | 1:55 | Oakland, United States |
| Loss | 6-1 | Josh Curran | Decision (unanimous) | | Bodog Fight: Clash of the Nations | Dec 16, 2006 | 3 | 5:00 | Saint Petersburg, Russia |
| Win | 6-0 | Jerome Smith | Submission (arm-triangle choke) | | Fight Force: Butte Brawl 2 | Jul 22, 2006 | 1 | 4:13 | Butte, Montana, United States |
| Win | 5-0 | Jason Godsey | Submission (rear-naked choke) | | Fight Force: Butte Brawl 1 | May 06, 2006 | 1 | 4:42 | Butte, Montana, United States |
| Win | 4-0 | Michael Buchkovich | Submission | | World Extreme Fighting 17 | Apr 01, 2006 | 1 | 0:56 | Las Vegas, United States |
| Win | 3-0 | Ray Seraile | Submission (punches) | | PXC 3: Return of the Enforcer | Aug 28, 2004 | 2 | 3:41 | Mangilao, Guam |
| Win | 2-0 | Jerry Vrbanovic | Decision (split) | | Rage on the River | Apr 17, 2004 | 3 | 3:00 | Redding, United States |
| Win | 1-0 | Bo Cantrell | Submission | | Rage on the River | Apr 17, 2004 | 3 | 2:52 | Redding, United States |
