| Sieg | 16-7 (2) | Shinya Aoki  | TKO (Punches) |  | ONE Championship: One X | Mar 26, 2022 | 2 | 1:50 | Singapore  |
| Cancelled Bout | | Mohammad Karaki  | - | | ONE on TNT 3: Lineker vs. Worthen | Apr 21, 2021 | - | - | Singapore |
| Sieg | 15-7 (2) | Sherif Mohamed  | KO (Punches) |  | ONE Championship: King of the Jungle | Feb 28, 2020 | 1 | 3:04 | Singapore |
| Niederlage | 14-7 (2) | Agilan Thani  | Decision (Unanimous) |  | ONE Championship: Legendary Quest | Jun 15, 2019 | 3 | 5:00 | Shanghai, China |
| Niederlage | 14-6 (2) | Alberto Mina  | Decision (Split) |  | UFC Fight Night: Henderson vs Masvidal | Nov 28, 2015 | 3 | 5:00 | Seoul, South Korea |
| Sieg | 14-5 (2) | Amir Sadollah | Decision (unanimous) |  | UFC Fight Night: Hunt vs Nelson | Sep 20, 2014 | 3 | 5:00 | Saitama Arena, Saitama, Japan |
| Niederlage | 13-5 (2) | Jake Shields  | Decision (unanimous) |  | UFC 144 | Feb 26, 2012 | 3 | 5:00 | Saitama, Japan |
| Niederlage | 13-4 (2) | Vitor Belfort | KO (punches) |  | UFC 133 | Aug 06, 2011 | 1 | 1:52 | Philadelphia, United States |
| Niederlage | 13-3 (2) | Michael Bisping  | Decision (unanimous) |  | UFC 120 | Oct 16, 2010 | 3 | 5:00 | London, England  |
| Niederlage | 13-2 (2) | Chris Leben | Submission (triangle choke) |  | UFC 116 | Jul 03, 2010 | 3 | 4:40 | Las Vegas, United States |
| Sieg | 13-1 (2) | Alan Belcher | Decision (split) |  | UFC 100 | Jul 11, 2009 | 3 | 5:00 | Las Vegas, United States |
| Sieg | 12-1 (2) | Masanori Tonooka | Submission (armbar) |  | Dream 6 | Sep 23, 2008 | 1 | 6:26 | Saitama, Japan |
| Sieg | 11-1 (2) | Katsuyori Shibata | Submission (ezekiel choke) |  | Dream 5 | Jul 21, 2008 | 1 | 6:34 | Osaka, Japan |
| NC | 10-1 (2) | Kazuo Misaki | No Contest |  | M-1 Yarennoka 2007 | Dec 31, 2007 | 1 | 7:48 | Saitama, Japan |
| Sieg | 10-1 (1) | Denis Kang | KO (punch) |  | Hero's 2007 in Korea | Oct 28, 2007 | 1 | 4:45 | Seoul, South Korea |
| NC | 9-1 (1) | Kazushi Sakuraba | No Contest |  | K-1 Hero's Premium Dynamite 2006!! | Dec 31, 2006 | 1 | 5:37 | Osaka, Japan |
| Sieg | 9-1 | Melvin Manhoef  | Submission (armbar) | | Hero's 7 | Oct 09, 2006 | 1 | 1:58 | Yokohama, Japan |
| Sieg | 8-1 | Kęstutis Smirnovas | TKO (strikes) | | Hero's 7 | Oct 09, 2006 | 1 | 3:01 | Yokohama, Japan |
| Sieg | 7-1 | Taiei Kin | Submission (armbar) | | Hero's 6 | Aug 05, 2006 | 1 | 2:01 | Tokyo, Japan |
| Sieg | 6-1 | Katsuhiko Nagata | KO (spinning back kick) | | Hero's 5 | May 03, 2006 | 1 | 2:25 | Tokyo, Japan |
| Sieg | 5-1 | Tokimitsu Ishizawa | Submission (ezekiel choke) | | Hero's 4 | Mar 15, 2006 | 2 | 1:41 | Tokyo, Japan |
| Sieg | 4-1 | Masakatsu Okuda | KO (slam + punches) | | Hero's 2005 in Seoul | Nov 05, 2005 | 1 | 3:31 | Seoul, South Korea |
| Sieg | 3-1 | Michael Lerma | TKO (punches) | | K-1 World MAX 2005 Champions' Challenge | Oct 12, 2005 | 1 | 2:47 | Tokyo, Japan |
| Sieg | 2-1 | Carl Toomey | Submission (armbar) | | Hero's 2 | Jul 06, 2005 | 1 | 0:59 | Tokyo, Japan |
| Niederlage | 1-1 | Jerome Le Banner  | KO (knee) | | Hero's 1 | Mar 26, 2005 | 1 | 2:24 | Saitama, Japan |
| Sieg | 1-0 | Francois Botha | Submission (armbar) | | K-1 PREMIUM 2004 Dynamite!! | Dec 31, 2004 | 1 | 1:54 | Osaka, Japan |
