| Res. | Record | Opponent | Method | Event | Date | Round | Time | Location | Notes |
| Loss | 35–14–1 (1) | Quinton Jackson | TKO (punches) | Bellator 206 | 29 September 2018 | 2 | 4:32 | San Jose, California, United States | Heavyweight bout. |
| Loss | 35–13–1 (1) | Chael Sonnen | Decision (unanimous) | Bellator NYC | 24 June 2017 | 3 | 5:00 | New York City, New York, United States | |
| Win | 35–12–1 (1) | Brian Stann | KO (punches) | UFC on Fuel TV: Silva vs. Stann | 3 March 2013 | 2 | 4:08 | Saitama, Japan | Return to Light Heavyweight. Fight of the Night. Knockout of the Night. |
| Loss | 34–12–1 (1) | Rich Franklin | Decision (unanimous) | UFC 147 | 23 June 2012 | 5 | 5:00 | Belo Horizonte, Brazil | Catchweight (190 lb) bout. Fight of the Night. |
| Win | 34–11–1 (1) | Cung Le | TKO (knees and punches) | UFC 139 | 20 November 2011 | 2 | 4:49 | San Jose, California, United States | Fight of the Night. |
| Loss | 33–11–1 (1) | Chris Leben | KO (punches) | UFC 132 | 2 July 2011 | 1 | 0:27 | Las Vegas, Nevada, United States | |
| Win | 33–10–1 (1) | Michael Bisping | Decision (unanimous) | UFC 110 | 21 February 2010 | 3 | 5:00 | Sydney, Australia | Middleweight debut. |
| Loss | 32–10–1 (1) | Rich Franklin | Decision (unanimous) | UFC 99 | 13 June 2009 | 3 | 5:00 | Cologne, Germany | Catchweight (195 lb) bout. Fight of the Night. |
| Loss | 32–9–1 (1) | Quinton Jackson | KO (punch) | UFC 92 | 27 December 2008 | 1 | 3:21 | Las Vegas, Nevada, United States | |
| Win | 32–8–1 (1) | Keith Jardine | KO (punches) | UFC 84 | 24 May 2008 | 1 | 0:36 | Las Vegas, Nevada, United States | Knockout of the Night. Knockout of the Year (2008). |
| Loss | 31–8–1 (1) | Chuck Liddell | Decision (unanimous) | UFC 79 | 29 December 2007 | 3 | 5:00 | Las Vegas, Nevada, United States | Fight of the Night. Fight of the Year (2008). |
| Loss | 31–7–1 (1) | Dan Henderson | KO (punches) | Pride 33 | 24 February 2007 | 3 | 2:08 | Las Vegas, Nevada, United States | Lost the Pride Middleweight Championship. |
| Loss | 31–6–1 (1) | Mirko Cro Cop | KO (head kick) | Pride Final Conflict | 10 September 2006 | 1 | 5:26 | Saitama, Japan | 2006 Pride Heavyweight Grand Prix Semifinal. |
| Win | 31–5–1 (1) | Kazuyuki Fujita | TKO (punches and soccer kicks) | Pride Critical Countdown | 1 July 2006 | 1 | 9:21 | Saitama, Japan | 2006 Pride Heavyweight Grand Prix Quarterfinal. |
| Win | 30–5–1 (1) | Ricardo Arona | Decision (split) | Pride Shockwave 2005 | 31 December 2005 | 3 | 5:00 | Saitama, Japan | Defended the Pride Middleweight Championship. |
| Loss | 29–5–1 (1) | Ricardo Arona | Decision (unanimous) | Pride Final Conflict 2005 | 28 August 2005 | 2 | 5:00 | Saitama, Japan | 2005 Pride Middleweight Grand Prix Semifinal. |
| Win | 29–4–1 (1) | Kazuhiro Nakamura | TKO (punches) | Pride Critical Countdown 2005 | 26 June 2005 | 1 | 5:24 | Saitama, Japan | 2005 Pride Middleweight Grand Prix Quarterfinal. |
| Win | 28–4–1 (1) | Hidehiko Yoshida | Decision (split) | Pride Total Elimination 2005 | 23 April 2005 | 3 | 5:00 | Osaka, Japan | 2005 Pride Middleweight Grand Prix Opening Round. |
| Loss | 27–4–1 (1) | Mark Hunt | Decision (split) | Pride Shockwave 2004 | 31 December 2004 | 3 | 5:00 | Saitama, Japan | Openweight bout. |
| Win | 27–3–1 (1) | Quinton Jackson | KO (knees) | Pride 28 | 31 October 2004 | 2 | 3:26 | Saitama, Japan | Defended the Pride Middleweight Championship. Fight of the Year (2004). |
| Win | 26–3–1 (1) | Yuki Kondo | KO (stomps) | Pride Final Conflict 2004 | 15 August 2004 | 1 | 2:46 | Saitama, Japan | Non-title bout. |
| Win | 25–3–1 (1) | Ikuhisa Minowa | KO (punches) | Pride Bushido 2 | 15 February 2004 | 1 | 1:09 | Yokohama, Japan | Non-title bout. |
| Win | 24–3–1 (1) | Quinton Jackson | TKO (knees) | Pride Final Conflict 2003 | 9 November 2003 | 1 | 6:28 | Tokyo, Japan | Won the 2003 Pride Middleweight Grand Prix. |
| Win | 23–3–1 (1) | Hidehiko Yoshida | Decision (unanimous) | 2 | 5:00 | 2003 Pride Middleweight Grand Prix Semifinal. Fight of the Year (2003). |
| Win | 22–3–1 (1) | Kazushi Sakuraba | KO (punch) | Pride Total Elimination 2003 | 10 August 2003 | 1 | 5:01 | Saitama, Japan | 2003 Pride Middleweight Grand Prix Opening Round. |
| Win | 21–3–1 (1) | Hiromitsu Kanehara | TKO (corner stoppage) | Pride 23 | 24 November 2002 | 1 | 3:40 | Tokyo, Japan | Defended the Pride Middleweight Championship. |
| Win | 20–3–1 (1) | Tatsuya Iwasaki | TKO (head kick and punches) | Pride Shockwave | 28 August 2002 | 1 | 1:16 | Tokyo, Japan | Non-title bout. |
| Draw | 19–3–1 (1) | Mirko Cro Cop | Draw (time limit) | Pride 20 | 28 April 2002 | 5 | 3:00 | Yokohama, Japan | Heavyweight bout. Match fought under special rules. |
| Win | 19–3 (1) | Kiyoshi Tamura | KO (punch) | Pride 19 | 24 February 2002 | 2 | 2:28 | Saitama, Japan | Defended the Pride Middleweight Championship. |
| Win | 18–3 (1) | Alexander Otsuka | TKO (doctor stoppage) | Pride 18 | 23 December 2001 | 3 | 2:02 | Fukuoka, Japan | Non-title bout. |
| Win | 17–3 (1) | Kazushi Sakuraba | TKO (doctor stoppage) | Pride 17 | 3 November 2001 | 1 | 10:00 | Tokyo, Japan | Won the inaugural Pride Middleweight Championship. |
| Win | 16–3 (1) | Shungo Oyama | TKO (punches) | Pride 14 - Clash of the Titans | 27 May 2001 | 1 | 0:30 | Yokohama, Japan | |
| Win | 15–3 (1) | Kazushi Sakuraba | TKO (knees and soccer kicks) | Pride 13 - Collision Course | 25 March 2001 | 1 | 1:38 | Saitama, Japan | |
| Win | 14–3 (1) | Dan Henderson | Decision (unanimous) | Pride 12 - Cold Fury | 23 December 2000 | 2 | 10:00 | Saitama, Japan | Return to Light Heavyweight. |
| NC | 13–3 (1) | Gilbert Yvel | NC (Yvel kicked in groin) | Pride 11 - Battle of the Rising Sun | 31 October 2000 | 1 | 0:21 | Osaka, Japan | Heavyweight debut. An inadvertent groin kick from Silva rendered Yvel unable to continue. |
| Win | 13–3 | Guy Mezger | KO (punches) | Pride 10 - Return of the Warriors | 27 August 2000 | 1 | 3:45 | Saitama, Japan | |
| Win | 12–3 | Todd Medina | KO (knees) | Meca Vale Tudo 2 | 12 August 2000 | 1 | 0:39 | Curitiba, Brazil | |
| Loss | 11–3 | Tito Ortiz | Decision (unanimous) | UFC 25 | 14 April 2000 | 5 | 5:00 | Tokyo, Japan | For the vacant UFC Light Heavyweight Championship. |
| Win | 11–2 | Bob Schrijber | Submission (rear-naked choke) | Pride Grand Prix 1st Round | 30 January 2000 | 1 | 2:42 | Tokyo, Japan | |
| Win | 10–2 | Daijiro Matsui | Decision (unanimous) | Pride 8 | 21 November 1999 | 2 | 10:00 | Tokyo, Japan | |
| Win | 9–2 | Carl Malenko | Decision (unanimous) | Pride 7 | 12 September 1999 | 2 | 10:00 | Yokohama, Japan | |
| Win | 8–2 | Tony Petarra | KO (knee) | UFC 20 | 7 May 1999 | 1 | 2:53 | Birmingham, Alabama, United States | |
| Win | 7–2 | Eugene Jackson | TKO (submission to punches) | IVC 10: World Class Champions | 27 April 1999 | 1 | 0:32 | Brazil | Won the IVC Light Heavyweight Championship. |
| Win | 6–2 | Adrian Serrano | KO (punches and soccer kick) | IVC 9: The Revenge | 20 January 1999 | 1 | 0:22 | Aracaju, Brazil | |
| Loss | 5–2 | Vitor Belfort | TKO (punches) | UFC Brazil | 16 October 1998 | 1 | 0:44 | São Paulo, Brazil | |
| Win | 5–1 | Mike van Arsdale | KO (punch and soccer kick) | IVC 6: The Challenge | 23 August 1998 | 1 | 4:00 | São Paulo, Brazil | |
| Loss | 4–1 | Artur Mariano | TKO (doctor stoppage) | IVC 2: A Question of Pride | 15 September 1997 | 1 | 13:10 | São Paulo, Brazil | |
| Win | 4–0 | Egidio da Costa | TKO (submission to punches) | 1 | 2:27 | |
| Win | 3–0 | Sean Bormet | KO (kick) | 1 | 1:19 | |
