| Niederlage | 22-8 | Arnold Allen  | Decision (Unanimous) |  | UFC 239: Jones vs Santos | Jul 06, 2019 | 3 | 5:00 | Las Vegas, Nevada, United States |
| Niederlage | 22-7 | Jeremy Stephens  | Decision (unanimous) |  | UFC 215: Nunes vs Shevchenko 2 | Sep 09, 2017 | 3 | 5:00 | Edmonton, Alberta, Canada |
| Niederlage | 22-6 | Edson Barboza  | Decision (unanimous) |  | UFC on FOX 20: Holm vs Shevchenko | Jul 23, 2016 | 3 | 5:00 | Chicago, Illinois, United States |
| Niederlage | 22-5 | Eddie Alvarez | Decision (Split) |  | UFC 188: Velasquez vs Werdum | Jun 13, 2015 | 3 | 5:00 | Mexico City, Mexico |
| Niederlage | 22-4 | Anthony Pettis | Submission (guillotine choke) |  | UFC 181: Hendricks vs Lawler II | Dec 09, 2014 | 2 | 1:53 | Las Vegas, United States |
| Cancelled Bout | | Khabib Nurmagomedov  | - |  | UFC 170 | Feb 22, 2014 | - | - | Las Vegas, United States |
| Sieg | 22-3 | Diego Sanchez | Decision (unanimous) | | UFC 166: Velasquez vs Dos Santos III | Oct 19, 2013 | 3 | 5:00 | Houston, Texas, United States |
| Niederlage | 21-3 | Benson Henderson | Decision (split) | | UFC on FOX 7 | Apr 20, 2013 | 5 | 5:00 | HP Pavilion, San Jose, California |
| Sieg | 21-2 | Josh Thomson | Decision (split) | | Strikeforce: Barnett vs. Cormier | May 19, 2012 | 5 | 5:00 | California, United States |
| Sieg | 20-2 | Jorge Masvidal | Decision (unanimous) | | Strikeforce | Dec 17, 2011 | 5 | 5:00 | California, United States |
| Sieg | 19-2 | Tatsuya Kawajiri  | TKO (elbows) |  | Strikeforce: Diaz vs. Daley | Apr 09, 2011 | 1 | 3:14 | California, United States |
| Sieg | 18-2 | Shinya Aoki | Decision (unanimous) |  | Strikeforce: Nashville | Apr 17, 2010 | 5 | 5:00 | Nashville, United States |
| Sieg | 17-2 | Josh Thomson | Decision (unanimous) | | Strikeforce: Evolution | Dec 19, 2009 | 5 | 5:00 | California, United States |
| Sieg | 16-2 | Mitsuhiro Ishida | TKO (punches) | | Strikeforce: Carano vs. Cyborg | Aug 15, 2009 | 3 | 3:56 | California, United States |
| Sieg | 15-2 | Rodrigo Damm | KO (punches) | | Strikeforce: Shamrock vs. Diaz | Apr 11, 2009 | 2 | 2:02 | California, United States |
| Niederlage | 14-2 | Josh Thomson | Decision (unanimous) | | Strikeforce | Jun 27, 2008 | 5 | 5:00 | California, United States |
| Sieg | 14-1 | Gabe Lemley | TKO (punches) | | Strikeforce: Shamrock vs. Le | Mar 29, 2008 | 2 | 2:18 | California, United States |
| Niederlage | 13-1 | Mitsuhiro Ishida | Decision (unanimous) | | Yarennoka! | Dec 31, 2007 | 2 | 5:00 | Saitama, Saitama, Japan |
| Sieg | 13-0 | Tetsuji Kato | Decision (unanimous) | | Strikeforce: Playboy Mansion | Sep 29, 2007 | 3 | 5:00 | California, United States |
| Sieg | 12-0 | Tatsuya Kawajiri | Decision (unanimous) |  | Pride Shockwave 2006 | Dec 31, 2006 | 2 | 5:00 | Saitama, Saitama, Japan |
| Sieg | 11-0 | Nobuhiro Obiya | Decision (unanimous) | | Pride Bushido 12 | Aug 26, 2006 | 2 | 5:00 | Nagoya, Aichi, Japan |
| Sieg | 10-0 | Clay Guida | Decision (split) | | Strikeforce: Revenge | Jun 09, 2006 | 5 | 5:00 | San Jose, United States |
| Sieg | 9-0 | Harris Sarmiento | Submission (punches) | | Strikeforce: Shamrock vs. Gracie | Mar 10, 2006 | 2 | 0:44 | San Jose, United States |
| Sieg | 8-0 | Rumina Sato | TKO (cut) | | Shooto: Alive Road | Aug 20, 2005 | 1 | 1:32 | Yokohama, Kanagawa, Japan |
| Sieg | 7-0 | Naoya Uematsu | TKO (cut) | | Shooto: Korakuen Hall | May 04, 2005 | 2 | 4:30 | Tokyo, Tokyo, Japan |
| Sieg | 6-0 | Hiroyuki Takaya | Decision (unanimous) | | Shooto: End Show | Dec 14, 2004 | 3 | 5:00 | Tokyo, Tokyo, Japan |
| Sieg | 5-0 | Kaynan Kaku | TKO (punches) | | K-1 | Nov 20, 2004 | 2 | 3:58 | Honolulu, United States |
| Sieg | 4-0 | Olaf Alfonso | TKO (punches) | | WEC 10 | May 21, 2004 | 3 | 4:54 | Lemoore, United States |
| Sieg | 3-0 | Stephen Palling | TKO (punches) | | Rumble on the Rock 4 | Oct 10, 2003 | 2 | 4:59 | Honolulu, United States |
| Sieg | 2-0 | Jeff Hougland | TKO (punches) | | WEC 6 | Mar 27, 2003 | 2 | 2:05 | Lemoore, United States |
| Sieg | 1-0 | Greg Quan | TKO (punches) | | WEC 5 | Oct 18, 2002 | 1 | 4:37 | Lemoore, United States |
