| Sieg | 14-7-1 (1) | Yuki Kondo  | Submission (Rear-Naked Choke) |  | ONE Championship: Reign of Kings | Jul 27, 2018 | 2 | 1:40 | Manila, Philippines |
| Niederlage | 13-7-1 (1) | Matt Hughes  | TKO (leg kicks and punches) |  | UFC 112 | Apr 10, 2010 | 3 | 4:40 | Abu Dhabi, United Arab Emirates |
| Sieg | 13-6-1 (1) | Frank Shamrock | DQ (knees to downed opponent) |  | EliteXC Destiny | Feb 10, 2007 | 2 | 2:00 | Southaven, Mississippi, United States |
| Sieg | 12-6-1 (1) | Carlos Newton | Decision (split) | | IFL: World Team Championships | Dec 29, 2006 | 3 | 4:00 | Connecticut, United States |
| Sieg | 11-6-1 (1) | Pat Miletich | Submission (Guillotine Choke) | | IFL 9 | Sep 23, 2006 | 1 | 3:37 | Illinois, United States |
| Niederlage | 10-6-1 (1) | B.J. Penn | Decision (unanimous) |  | K-1: World Grand Prix Hawaii | Jul 29, 2005 | 3 | 5:00 | Honolulu, Hawaii, United States |
| Niederlage | 10-5-1 (1) | Carlos Newton | Decision (split) | | Pride Bushido 1 | Oct 05, 2003 | 2 | 5:00 | Saitama, Japan |
| Niederlage | 10-4-1 (1) | Shungo Oyama | Decision (unanimous) | | Pride 21 | Jun 23, 2002 | 3 | 5:00 | Saitama, Japan |
| Sieg | 10-3-1 (1) | Michiyoshi Ohara | Decision (unanimous) | | Pride 17 | Nov 03, 2001 | 3 | 5:00 | Tokyo, Japan |
| Niederlage | 9-3-1 (1) | Dan Henderson | KO (punch) | | Pride 13 | Mar 25, 2001 | 1 | 1:40 | Saitama, Saitama, Japan |
| Niederlage | 9-2-1 (1) | Kazushi Sakuraba | Technical submission |  | Pride 10 | Aug 27, 2000 | 2 | 9:43 | Tokorozawa, Japan |
| Niederlage | 9-1-1 (1) | Kiyoshi Tamura | Decision (unanimous) | | Rings: King of Kings 1999 Final | Feb 26, 2000 | 2 | 5:00 | Tokyo, Japan |
| Sieg | 9-0-1 (1) | Maurice Smith | Submission (straight armbar) | | Rings: King of Kings 1999 Block B | Dec 22, 1999 | 1 | 0:50 | Osaka, Japan |
| Sieg | 8-0-1 (1) | Wataru Sakata | Submission (armbar) | | Rings: King of Kings 1999 Block B | Dec 22, 1999 | 1 | 1:25 | Osaka, Japan |
| Sieg | 7-0-1 (1) | Alexander Otsuka | Decision (unanimous) | | Pride 8 | Nov 21, 1999 | 2 | 10:00 | Tokyo, Japan |
| Sieg | 6-0-1 (1) | Sanae Kikuta | Submission (guillotine choke) | | Pride 2 | Mar 15, 1998 | 6 | 0:43 | Yokohama, Japan |
| Unentschieden | 5-0-1 (1) | Akira Shoji | Draw | | Pride 1 | Oct 11, 1997 | 3 | 10:00 | Tokyo, Japan |
| NC | 5-0 (1) | Eugenio Tadeu | No Contest (fans rioted) | | Pentagon Combat | Sep 27, 1997 | 1 | 14:45 | Brazil |
| Sieg | 5-0 | Oleg Taktarov  | KO (upkick and punch) | | Martial Arts Reality Superfighting | Nov 22, 1996 | 1 | 1:02 | Birmingham, Alabama, US |
| Sieg | 4-0 | James Warring | Submission (ezekiel choke) | | WCC 1: First Strike | Oct 17, 1995 | 1 | 2:47 | Carolina, United States |
| Sieg | 3-0 | Phil Benedict | Submission (punches) | | WCC 1: First Strike | Oct 17, 1995 | 1 | 2:08 | Carolina, United States |
| Sieg | 2-0 | Ben Spijkers | Technical Submission (lapel choke) | | WCC 1: First Strike | Oct 17, 1995 | 1 | 2:38 | Carolina, United States |
| Sieg | 1-0 | Luiz Augusto Alvareda | Technical Submission (rear-naked choke) | | Desafio: Gracie Vale Tudo | Jan 01, 1992 | 1 | 7:03 | Janeiro, Brazil |
