| Niederlage | 15-11 (1) | Muhammed Lawal  | KO (punches) | | M-1 Global Presents Breakthrough | Aug 28, 2009 | 1 | 0:25 | Kansas, United States |
| Niederlage | 15-10 (1) | Jeff Monson  | Submission (rear naked choke) | | Vengeance Fighting Championship 1 | Sep 27, 2008 | 1 | 3:17 | Concord, United States |
| Niederlage | 15-9 (1) | Ralph Kelly | TKO (punches) | | Xp3: The Proving Ground | Jul 26, 2008 | 1 | 4:11 | Houston, United States |
| Niederlage | 15-8 (1) | Tracy Willis | Submission (guillotine choke) | | C-3 Fights: Contenders | Jun 07, 2008 | 1 | 0:45 | Concho, Oklahoma, United States |
| Niederlage | 15-7 (1) | Oleg Taktarov | Submission (kneebar) | | YAMMA Pit Fighting | Apr 11, 2008 | 1 | 1:55 | Atlantic City, New Jersey, US |
| Sieg | 15-6 (1) | Chuck Huus | Submission (americana) | | CCCF: Battle on the Border | Mar 29, 2008 | 1 | 2:41 | Newkirk, Oklahoma, United States |
| Sieg | 14-6 (1) | Steve Gavin | Submission (kimura) | | WCO: Kerr Vs. Gavin | Nov 07, 2007 | 1 | 1:39 | Hollywood, United States |
| Niederlage | 13-6 (1) | Mostapha Al-turk | Submission (punches) | | Cage Rage 20 | Feb 10, 2007 | 1 | 2:29 | London, England |
| Niederlage | 13-5 (1) | Mike Whitehead | TKO (punches) | | IFL: World Championship Semifinals | Nov 02, 2006 | 1 | 2:40 | Portland, Oregon, United States |
| Niederlage | 13-4 (1) | Yoshihisa Yamamoto | TKO (punches) | | Pride 27 | Feb 01, 2004 | 1 | 0:40 | Osaka, Osaka, Japan |
| Niederlage | 13-3 (1) | Heath Herring | TKO (knees) | | Pride 15 | Jul 29, 2001 | 2 | 4:56 | Saitama, Saitama, Japan |
| Niederlage | 13-2 (1) | Igor Vovchanchyn  | Decision (unanimous) | | Pride 12 | Dec 09, 2000 | 3 | 5:00 | Saitama, Japan |
| Sieg | 13-1 (1) | Igor Borisov | Submission (neck crank) | | Pride 10 - Return of the Warriors | Aug 27, 2000 | 1 | 2:06 | Tokorozawa, Saitama, Japan |
| Niederlage | 12-1 (1) | Kazuyuki Fujita  | Decision (unanimous) | | Pride Grand Prix 2000 Finals | May 01, 2000 | 1 | 15:00 | Tokyo, Japan |
| Sieg | 12-0 (1) | Enson Inoue | Decision (majority) | | Pride Grand Prix 2000 Opening Round | Jan 30, 2000 | 1 | 15:00 | Tokyo, Japan |
| NC | 11-0 (1) | Igor Vovchanchyn | NC (illegal knees) | | Pride FC - Pride 7 | Sep 12, 1999 | 2 | 4:36 | Yokohama, Japan, Japan |
| Sieg | 11-0 | Nobuhiko Takada | Submission (kimura) | | Pride 6 | Jul 04, 1999 | 1 | 3:04 | Yokohama, Kanagawa, Japan |
| Sieg | 10-0 | Hugo Duarte | TKO (retirement) | | Pride 4 | Oct 11, 1998 | 3 | 2:32 | Tokyo, Japan |
| Sieg | 9-0 | Pedro Otavio | Technical Submission (kimura) | | Pride 3 | Jun 24, 1998 | 1 | 2:13 | Tokyo, Japan |
| Sieg | 8-0 | Branko Cikatic | DQ (grabbing the ropes) | | Pride 2 | Mar 15, 1998 | 1 | 2:14 | Yokohama, Kanagawa, Japan |
| Sieg | 7-0 | Dwayne Cason | Submission (rear-naked choke) | | UFC 15 | Oct 17, 1997 | 1 | 0:53 | Bay St. Louis, United States |
| Sieg | 6-0 | Greg Stott | KO (knee) | | UFC 15 | Oct 17, 1997 | 1 | 0:17 | Bay St. Louis, United States |
| Sieg | 5-0 | Dan Bobish | Submission (chin to the eye) | | UFC 14 | Jul 27, 1997 | 1 | 1:38 | Birmingham, United States |
| Sieg | 4-0 | Moti Horenstein | TKO (punches) | | UFC 14 | Jul 27, 1997 | 1 | 2:22 | Birmingham, United States |
| Sieg | 3-0 | Fabio Gurgel | Decision (unanimous) | | World Vale Tudo Championship 3 | Jan 19, 1997 | 1 | 30:00 | Brazil |
| Sieg | 2-0 | Mestre Hulk | DQ (crawling out of the ring) | | World Vale Tudo Championship 3 | Jan 19, 1997 | 1 | 2:21 | Brazil |
| Sieg | 1-0 | Paul Varelans | TKO (knees and punches) | | World Vale Tudo Championship 3 | Jan 19, 1997 | 1 | 2:06 | Brazil |
