| Niederlage | 28-16 (1) | Satoshi Ishii  | Decision (Unanimous) | | RIZIN 2017 in Yokohama: Sakura | Apr 16, 2017 | 2 | 15:00 | Yokohama, Kanagawa, Japan |
| Niederlage | 28-15 (1) | Amir Aliakbari  | Decision (Unanimous) |  | RIZIN Fighting World Grand Prix | Dec 29, 2016 | 2 | 5:00 | Saitama, Japan |
| Niederlage | 28-14 (1) | Brock Lesnar  | Decision (unanimous) |  | UFC 87 | Aug 09, 2008 | 3 | 5:00 | Minneapolis, United States |
| Sieg | 28-13 (1) | Cheick Kongo  | Decision (split) | | UFC 82 | Mar 01, 2008 | 3 | 5:00 | Columbus, Ohio, United States |
| Niederlage | 27-13 (1) | Antonio Rodrigo Nogueira  | Decision (unanimous) | | UFC 73 | Jul 07, 2007 | 3 | 5:00 | Sacramento, United States |
| Sieg | 27-12 (1) | Brad Imes | Decision (unanimous) |  | UFC 69 | Apr 07, 2007 | 3 | 5:00 | Texas, United States |
| Niederlage | 26-12 (1) | Jake O'Brien | Decision (unanimous) | | UFC Fight Night: Evans vs Salmon | Jan 25, 2007 | 3 | 5:00 | Florida, United States |
| Sieg | 26-11 (1) | Gary Goodridge  | TKO (punches) |  | Hero's 4 | Mar 15, 2006 | 2 | 1:55 | Tokyo, Japan |
| NC | 25-11 (1) | Yoshihiro Nakao | No Contest |  | K-1 PREMIUM 2005 Dynamite!! | Dec 31, 2005 | 1 | 0:00 | Osaka, Japan |
| Niederlage | 25-11 | Sam Greco | TKO (knee injury) |  | HERO'S 1 | Mar 26, 2005 | 1 | 2:24 | Saitama, Japan |
| Sieg | 25-10 | Hirotaka Yokoi | TKO (knees) |  | PRIDE 28 | Oct 31, 2004 | 1 | 1:55 | Saitama, Japan |
| Niederlage | 24-10 | Antonio Rodrigo Nogueira | Submission (anaconda choke) | | Pride Critical Countdown 2004 | Jun 20, 2004 | 2 | 0:30 | Saitama, Saitama, Japan |
| Sieg | 24-9 | Kazuo Takahashi | TKO (Punches) | | PRIDE Total Elimination 2004 | Apr 25, 2004 | 1 | 4:53 | Saitama, Japan |
| Sieg | 23-9 | Gan McGee | Decision (split) | | PRIDE 27 | Feb 01, 2004 | 3 | 5:00 | Osaka, Japan |
| Sieg | 22-9 | Giant Silva | Submission (rear-naked choke) |  | PRIDE Shockwave 2003 | Dec 31, 2003 | 3 | 0:35 | Saitama, Japan |
| Sieg | 21-9 | Yoshihisa Yamamoto | Submission (rear-naked choke) | | PRIDE Final Conflict 2003 | Nov 09, 2003 | 3 | 2:29 | Tokyo, Japan |
| Niederlage | 20-9 | Mirko Filipović  | TKO | | Pride 26 | Jun 08, 2003 | 1 | 3:17 | Yokohama, Kanagawa, Japan |
| Niederlage | 20-8 | Fedor Emelianenko  | TKO (doctor stoppage) |  | Pride 23 | Nov 24, 2002 | 1 | 10:00 | Tokyo, Tokyo, Japan |
| Sieg | 20-7 | Yuriy Kochkine | TKO (knees) | | PRIDE 22 | Sep 29, 2002 | 1 | 7:31 | Nagoya, Japan |
| Sieg | 19-7 | Igor Vovchanchyn  | Decision (unanimous) | | Pride 19 | Feb 24, 2002 | 3 | 5:00 | Saitama, Japan |
| Niederlage | 18-7 | Antonio Rodrigo Nogueira | Decision (unanimous) | | Pride 17 | Nov 03, 2001 | 3 | 5:00 | Tokyo, Japan |
| Sieg | 18-6 | Mark Kerr | TKO (knees) | | Pride 15 | Jul 29, 2001 | 2 | 4:56 | Saitama, Saitama, Japan |
| Niederlage | 17-6 | Vitor Belfort | Decision (unanimous) | | Pride 14 | May 27, 2001 | 3 | 5:00 | Yokohama, Kanagawa, Japan |
| Sieg | 17-5 | Denis Sobolev | Submission (americana) | | Pride 13 - Collision Course | Mar 25, 2001 | 1 | 0:22 | Saitama, Japan |
| Sieg | 16-5 | Enson Inoue | TKO (knees) | | Pride 12 - Cold Fury | Dec 09, 2000 | 1 | 4:52 | Saitama, Japan |
| Sieg | 15-5 | Tom Erikson | Submission (rear-naked choke) | | Pride 11 - Battle of the Rising Sun | Oct 31, 2000 | 1 | 6:17 | Osaka, Japan |
| Sieg | 14-5 | Willie Peeters | Submission (rear-naked choke) | | PRIDE 9 | Jun 04, 2000 | 1 | 0:48 | Nagoya, Japan |
| Niederlage | 13-5 | Ramazan Mezhidov | TKO (doctor stoppage) | | IAFC: Pankration World Championship 2000 Day 2 | Apr 29, 2000 | 1 | 4:55 | Moscow, Russia |
| Sieg | 13-4 | Rene Rooze | DQ (excessive fouling) | | 2 Hot 2 Handle 1 | Mar 05, 2000 | 1 | 3:20 | Rotterdam, Netherlands |
| Sieg | 12-4 | Bob Schrijber  | TKO (punches) | | World Vale Tudo Championship 9 | Sep 27, 1999 | 1 | 2:19 | Oranjestad, Aruba  |
| Sieg | 11-4 | Sean McCully | Submission (kimura) | | World Vale Tudo Championship 9 | Sep 27, 1999 | 1 | 0:43 | Aruba |
| Sieg | 10-4 | Michael Tielrooy | Submission (americana) | | World Vale Tudo Championship 9 | Sep 27, 1999 | 1 | 1:14 | Aruba |
| Niederlage | 9-4 | Bobby Hoffman | Decision (unanimous) | | SuperBrawl 13 | Sep 07, 1999 | 2 | 5:00 | Hawaii, United States |
| Sieg | 9-3 | Rocky Batastini | Submission (rear-naked choke) | | SuperBrawl 13 | Sep 07, 1999 | 1 | 1:00 | Hawaii, United States |
| Niederlage | 8-3 | Alexandre Ferreira | Decision (split) | | World Vale Tudo Championship 8 | Jul 01, 1999 | 1 | 30:00 | Aruba |
| Sieg | 8-2 | Kavkaz Soultanmagomedov | Submission (punches) | | World Vale Tudo Championship 8 | Jul 01, 1999 | 1 | 1:18 | Aruba |
| Sieg | 7-2 | Erwin van den Steen | Submission (punches) | | World Vale Tudo Championship 8 | Jul 01, 1999 | 1 | 4:43 | Aruba |
| Sieg | 6-2 | Gabe Beauperthy | Submission (armlock) | | Bas Rutten Invitational 3 | Jun 01, 1999 | 1 | 4:43 | Colorado, United States |
| Sieg | 5-2 | Hoss Carter | Submission (americana) | | Bas Rutten Invitational 3 | Jun 01, 1999 | 1 | 1:07 | Colorado, United States |
| Niederlage | 4-2 | Travis Fulton | Decision (unanimous) | | Extreme Challenge 24 | May 15, 1999 | 1 | 12:00 | Utah, United States |
| Sieg | 4-1 | Phil Deason | Submission (americana) | | WVF: Durango | Apr 17, 1999 | 1 | 0:13 | Colorado, United States |
| Sieg | 3-1 | Nik Bickle | Submission (punches) | | WVF: Durango | Apr 17, 1999 | 1 | 0:32 | Colorado, United States |
| Sieg | 2-1 | Evan Tanner | Submission (rear-naked choke) | | PSDA | Nov 22, 1997 | 1 | 8:20 | Texas, United States |
| Niederlage | 1-1 | Evan Tanner | Submission (exhaustion) | | Unified Shoot Wrestling Federation 7 | Oct 18, 1997 | 1 | 6:19 | Texas, United States |
| Sieg | 1-0 | Chris Guillen | Submission (rear-naked choke) | | Unified Shoot Wrestling Federation 4 | Apr 12, 1997 | 1 | 2:10 | Texas, United States |
