| Niederlage | 35-11 | Petr Yan  | KO (Head Kick) |  | UFC 245: Usman vs Covington | Dec 14, 2019 | 3 | 0:43 | Las Vegas, Nevada, United States |
| Sieg | 35-10 | Ricky Simon  | TKO (Punches) |  | UFC on ESPN+ 13: Ladd vs de Randamie | Jul 13, 2019 | 1 | 0:46 | Sacramento, California, United States |
| Sieg | 34-10 | Brad Pickett  | Decision (unanimous) |  | UFC on FOX 22: VanZant vs Waterson | Dec 17, 2016 | 3 | 5:00 | Sacramento, California, United States |
| Niederlage | 33-10 | Jimmie Rivera | Decision (unanimous) |  | UFC 203: Miocic vs Overeem | Sep 10, 2016 | 3 | 5:00 | Cleveland, Ohio, United States |
| Niederlage | 33-9 | Dominick Cruz | Decision (unanimous) |  | UFC 199: Rockhold vs Bisping 2 | Jun 04, 2016 | 5 | 5:00 | Inglewood, United States |
| Sieg | 33-8 | Frankie Saenz | Decision (unanimous) | | UFC 194: Aldo vs McGregor | Dec 12, 2015 | 3 | 5:00 | Las Vegas, United States |
| Niederlage | 32-8 | Frankie Edgar | Decision (unanimous) | | UFC Fight Night: Edgar vs Faber | May 16, 2015 | 5 | 5:00 | Pasay, Metro Manila, Philippines |
| Sieg | 32-7 | Francisco Rivera | Submission (bulldog choke) | | UFC 181: Hendricks vs Lawler II | Dec 06, 2014 | 2 | 1:34 | Las Vegas, United States |
| Sieg | 31-7 | Alex Caceres | Submission (rear-naked choke) | | UFC 175: Weidman vs Machida | Jul 05, 2014 | 3 | 1:09 | Las Vegas, United States |
| Niederlage | 30-7 | Renan Barao  | TKO (punches) |  | UFC 169: Barao vs Faber II | Feb 01, 2014 | 1 | 3:42 | New Jersey, United States |
| Sieg | 30-6 | Michael McDonald | Submission (guillotine choke) |  | UFC on Fox 9 | Dec 14, 2013 | 2 | 3:22 | Sacramento, United States |
| Sieg | 29-6 | Iuri Alcantara | Decision (unanimous) | | UFC on Fox Sports 1 - Sonnen vs Shogun | Aug 17, 2013 | 3 | 5:00 | Boston, United States |
| Sieg | 28-6 | Scott Jorgensen | Submission (rear naked choke) | | UFC - The Ultimate Fighter 17 Finale | Apr 13, 2013 | 4 | 3:16 | Las Vegas, United States |
| Sieg | 27-6 | Ivan Menjivar | Submission | | UFC 157: Rousey vs Carmouche | Feb 23, 2013 | 1 | 4:34 | Anaheim, United States |
| Niederlage | 26-6 | Renan Barao | Decision (unanimous) |  | UFC 149 | Jul 21, 2012 | 5 | 5:00 | Calgary, Alberta, Canada |
| Sieg | 26-5 | Brian Bowles | Submission | | UFC 139 | Nov 19, 2011 | 2 | 1:27 | California, United States |
| Niederlage | 25-5 | Dominick Cruz | Decision (unanimous) |  | UFC 132 | Jul 02, 2011 | 5 | 5:00 | Las Vegas, United States |
| Sieg | 25-4 | Eddie Wineland | Decision (unanimous) | | UFC 128 | Mar 19, 2011 | 3 | 5:00 | New Jersey, United States |
| Sieg | 24-4 | Takeya Mizugaki  | Technical Submission |  | WEC 52 | Nov 11, 2010 | 1 | 4:50 | Las Vegas, United States |
| Niederlage | 23-4 | Jose Aldo | Decision (unanimous) |  | WEC 48 | Apr 24, 2010 | 5 | 5:00 | California, United States |
| Sieg | 23-3 | Raphael Assunção | Submission (rear-naked choke) | | WEC 46 | Jan 10, 2010 | 3 | 3:49 | California, United States |
| Niederlage | 22-3 | Mike Brown | Decision (unanimous) | | WEC 41 | Jun 07, 2009 | 5 | 5:00 | California, United States |
| Sieg | 22-2 | Jens Pulver | Submission | | WEC 38 | Jan 25, 2009 | 1 | 1:34 | California, United States |
| Niederlage | 21-2 | Mike Brown | TKO (punches) | | WEC 36 | Nov 05, 2008 | 1 | 2:23 | Hollywood, United States |
| Sieg | 21-1 | Jens Pulver | Decision (unanimous) | | WEC 34 | Jun 01, 2008 | 5 | 5:00 | California, United States |
| Sieg | 20-1 | Jeff Curran | Submission (guillotine choke) | | WEC 31 | Dec 12, 2007 | 2 | 4:34 | Las Vegas, United States |
| Sieg | 19-1 | Chance Farrar | Submission | | WEC 28 | Jun 03, 2007 | 1 | 3:19 | Las Vegas, United States |
| Sieg | 18-1 | Dominick Cruz | Submission (guillotine choke) | | WEC 26 | Mar 24, 2007 | 1 | 1:38 | Las Vegas, United States |
| Sieg | 17-1 | Joe Pearson | Submission | | WEC 25 | Jan 20, 2007 | 1 | 2:31 | Las Vegas, United States |
| Sieg | 16-1 | Bibiano Fernandes | TKO (doctor stoppage) | | KOTC: All Stars | Oct 28, 2006 | 1 | 4:16 | Reno, Nevada, United States |
| Sieg | 15-1 | Enoch Wilson | TKO (doctor stoppage) | | FCP: Malice at Cow Palace | Sep 09, 2006 | 2 | 1:01 | San Francisco, California |
| Sieg | 14-1 | Naoya Uematsu | TKO (punches) | | GC 51: Madness at the Memorial | Jul 01, 2006 | 2 | 3:35 | California, United States |
| Sieg | 13-1 | Charlie Valencia | Submission (rear-naked choke) | | KOTC: Predator | May 13, 2006 | 1 | 3:09 | Globe, Arizona, United States |
| Sieg | 12-1 | Cole Escovedo | TKO (corner stoppage) | | WEC 19 | Mar 17, 2006 | 2 | 5:00 | California, United States |
| Sieg | 11-1 | Ivan Menjivar | DQ | | TKO 24: Eruption | Jan 28, 2006 | 2 | 2:02 | Laval, Quebec, Canada |
| Sieg | 10-1 | Charles Bennett | Technical Submission | | GC 46: Avalanche | Dec 11, 2005 | 1 | 4:38 | California, United States |
| Sieg | 9-1 | Shawn Bias | Submission (guillotine choke) | | KOTC: Execution Day | Oct 29, 2005 | 1 | 1:24 | Reno, Nevada, United States |
| Niederlage | 8-1 | Tyson Griffin | TKO (punches) | | GC 42: Summer Slam | Sep 10, 2005 | 3 | 0:05 | California, United States |
| Sieg | 8-0 | Hiroyuki Abe | TKO (cut) | | KOTC: Mortal Sins | May 07, 2005 | 3 | 2:37 | Primm, Nevada, United States |
| Sieg | 7-0 | David Granados | Submission (rear-naked choke) | | GC 35: Cold Fury | Mar 13, 2005 | 1 | 2:13 | California, United States |
| Sieg | 6-0 | Eben Kaneshiro | Submission (punches) | | KOTC: Revenge | Nov 14, 2004 | 3 | 4:33 | California, United States |
| Sieg | 5-0 | Rami Boukai | Decision (majority) | | KOTC: San Jacinto | Sep 24, 2004 | 2 | 5:00 | California, United States |
| Sieg | 4-0 | Del Hawkins | TKO (punches) | | GC 30: Gladiator Challenge 30 | Aug 19, 2004 | 1 | 3:19 | California, United States |
| Sieg | 3-0 | David Velasquez | Decision (unanimous) | | GC 27: FightFest 2 | Jun 03, 2004 | 3 | 5:00 | California, United States |
| Sieg | 2-0 | George Adkins | TKO (corner stoppage) | | GC 22: Gladiator Challenge 22 | Feb 12, 2004 | 2 | 2:42 | California, United States |
| Sieg | 1-0 | Jay Valencia | Submission (guillotine choke) | | GC 20: Gladiator Challenge 20 | Nov 12, 2003 | 1 | 1:22 | California, United States |
