Amateur Results| | | 1980 | | Date | Opponent | Place | Result | |
| Toronto, Canada, Ontario Junior Championsips, 75 kg | - Mar. 1 | Donovan Ruddock (CAN) | Toronto, Canada | LPTS 3 | | | | 1981 No results recorded | | | | 1982 | | Date | Opponent | Place | Result | |
| Montreal, Canada, Canadian Junior Championsips, 91 kg | - May 1 | H. Thompson | Montreal, Canada | LPTS 3 | | + May 15 | K. Hataway | Toronto, Canada | WPTS 3 | | + June 1 | D. Walls | Kitchener, Canada | WPTS 3 | | + July 1 | J. Mathiasen | Brandford, Canada | WTKO 1 | | + July 8 | G. Lamblon | Sarnia, Canada | WTKO 1 | | + July 15 | I. Lewis | Sudbury, Canada | WTKO 1 | | + July 22 | B. Forbes | Winnipeg, Canada | WPTS 3 | | + Aug. 1 | I. Lewis | Toronto, Canada | WPTS 3 | | + Sept. 1 | M. Rome | Toronto, Canada | WPTS 3 | | + Sept. 15 | B. Allan | Toronto, Canada | WTKO 2 | | + Oct. 1 | J. Corrigan | Toronto, Canada | WTKO 3 | | | | 1983 | | Date | Opponent | Place | Result | |
| Chicago, Illinois, USA vs Canada, +91 kg | + Jan. 15 | J. Valleyfield | Chicago, Illinois | WPTS 3 | |
| Chicoutimi, Canada, Canada Winter Games winner, +91 kg | + Feb. 23 | Claude Courchesnes | Chicoutimi, Canada | WTKO 1 | | + Mar. 1 | B. Drift | Waterloo, Canada | WPTS 3 | | + June 1 | Larry Evans | Hamilton, Canada | WPTS 3 | |
| Oulu, Finland, Dual Match Finland vs Canada, +91 kg | + Sept. 16 | Jouni Kopola (FIN) | Oulu, Finland | WWO | |
| Upsala, Sweden, Dual Match Sweden vs Canada, +91 kg | + Sept. 19 | Tommy Borzsei (SWE) | Upsala, Sweden | WTKO 3 | | + Oct. 1 | Larry Evans | Waterloo, Canada | WTKO 2 | |
| Santo Domingo, Dominican Republic, World Junior Championships gold medal, +91 kg | + Nov. 20 | Vincent Jones (USA) | Santo Domingo, Dominican Republic | WPTS 5:0 | | + Nov. 22 | Dorin Racaru (OMA) | Santo Domingo, Dominican Republic | WPTS 5:0 | | + Nov. 24 | Pedro Quesada (CUB) | Santo Domingo, Dominican Republic | WWO | | | | 1984 | | Date | Opponent | Place | Result | | + Jan. 9 | Bengt Cederqvist (SWE) | Stockholm, Sweden | WPTS 5:0 | | + Jan. 23 | D. Mills | Waterloo, Canada | WPTS 3 | |
| Edmonton, Canada, Dual Match Canada vs USA, +91 kg | + Feb. 25 | Craig Payne (USA) | Edmonton, Canada | WPTS 3 | | + Mar. 11 | J. Singletary | Toronto, Canada | WTKO 2 | |
| Trois Riviere, Canada, Canadian National Championships winner, +91 kg | + Apr. 6 | Don Stevenson | Trois Riviere, Canada | WTKO 1 | | + Apr. 7 | Barry Forbes (CAN) | Trois Riviere, Canada | WPTS 5:0 | | + Apr. 8 | Vernon Linklater | Trois Riviere, Canada | WPTS 5:0 | |
| Halifax, Canada, Canadian Olympic Box-offs, +91 kg | + May 4 | Vernon Linklater | Halifax, Canada | WWO | |
| Los Angeles, California, Olympic Games quarter-finals, +91 kg | + Aug. 3 | Mohammad Yousuf | Los Angeles, California | WTKO 3 | | - Aug. 8 | Tyrell Biggs (USA) | Los Angeles, California | LPTS 5:0 | |
| Milton Keynes, England, Dual Match England vs Canaa, +91 kg | + Oct. 31 | Robert Wells | Milton Keynes, England | WKO 3 | |
| Orlando, Florida, Dual Match USA vs Canaa, +91 kg | + Dec. 8 | Nathaniel Fitch (USA) | Orlando, Florida | WPTS 3:0 | | | | 1985 | | Date | Opponent | Place | Result | |
| Medicine Hat, Canada, Canadian National Championships winner, +91 kg | + Mar. 29 | Joe Stack | Medicine Hat, Canada | WKO 1 | | + Mar. 30 | Jeff Horton | Medicine Hat, Canada | WAB 2 | | + Mar. 31 | Brian Lansing | Medicine Hat, Canada | WTKO 1 | | + Apr. 15 | M. Jarvin | Kitchener, Canada | WAB 2 | | + May 1 | R. Garrison | London, Canada | WTKO 2 | |
| Albena, Bulgaria, Albena International Tournament gold medal, +91 kg | + June 10 | Milan Turek | Albena, Bulgaria | WAB 1 | |
| Beaumont, Texas, North American Championships gold medal, +91 kg | + Aug. 15 | Kimmuel Odum (USA) | Beaumont, Texas | WPTS 5:0 | | + Aug. 17 | Isaac Barrientos (PUR) | Beaumont, Texas | WPTS 4:1 | |
| Seoul, South Korea, World Cup silver medal, +91 kg | + Nov. 4 | Juan Antonio Diaz (ARG) | Seoul, South Korea | WAB 1 | | - Nov. 6 | Vyacheslav Yakovlev (RUS) | Seoul, South Korea | LPTS 5:0 | | | | 1986 | | Date | Opponent | Place | Result | | + Jan. 15 | A. White | Toronto, Canada | WPTS 3 | |
| Cornwall, Canada, Canadian National Championships winner, +91 kg | + Mar. 8 | Sandy Hervieux | Cornwall, Canada | WAB 2 | | + Mar. 9 | Wade Parsons | Cornwall, Canada | WDQ 2 | |
| Glace Bay, Canada, Canadian Box-offs, +91 kg | + Apr. 1 | Wade Parsons | Glace Bay, Canada | WWO | |
| Reno, Nevada, World Championships semifinals, +91 kg | - May 9 | Petar Stoymenov (BUL) | Reno, Nevada | LPTS 3:2 | | - July 1 | T. Littles | Bay City, Michigan | LPTS 3 | | + July 3 | J. Davidson | Bay City, Michigan | WTKO 3 | |
| Edinburgh, Scotland, Commonwealth Games gold medal, +91 kg | + July 29 | James Oyebola | Edinburgh, Scotland | WTKO 2 | | + July 31 | Aneurin Evans | Edinburgh, Scotland | WTKO 2 | |
| East Berlin, East Germany, TSC Tournament third place bout, +91 kg | - Oct. 5 | Valery Abadzhyan (RUS) | East Berlin, East Germany | LRSC 3 | | - Oct. 7 | Ladislav Husarik (SVK) | East Berlin, East Germany | LWO | |
| Montreal, Canada, Québec Cup winner, +91 kg | + Dec. 1 | Sandy Hervieux | Montreal, Canada | WRSC 2 | | | | 1987 | | Date | Opponent | Place | Result | |
| Stockholm, Sweden, Stockholm Box Open gold medal, +91 kg | + Jan. 11 | Hakan Brock (SWE) | Stockholm, Sweden | WPTS 5:0 | | + Jan. 12 | Alexander Burmistrov | Stockholm, Sweden | WKO 3 | |
| Oromocto, Canada, Canadian National Championships winner, +91 kg | + Apr. 1 | Sandy Hervieux | Oromocto, Canada | WPTS 5:0 | | + Apr. 3 | K. Russell | Oromocto, Canada | WAB 2 | |
| Saint-Nazaire, France, French Open gold medal, +91 kg | + Apr. 29 | Istvan Szikora (HUN) | Saint-Nazaire, France | WPTS 3 | |
| Ottawa, Canada, Canadian Box-offs, +91 kg | + May 7 | Sandy Hervieux | Ottawa, Canada | WRSC 1 | |
| Indianapolis, Indiana, Panamerican Games silver medal, +91 kg | + Aug. 19 | Carlos Barcelete (BRA) | Indianapolis, Indiana | WKO 2 | | - Aug. 23 | Jorge Luis Gonzalez (CUB) | Indianapolis, Indiana | LPTS 4:1 | |
| Toronto, Canada, North American Championships gold medal, +91 kg | + Aug. 29 | Jorge Luis Gonzalez (CUB) | Toronto, Canada | WPTS 2:1 | |
| Belgrade, Yugoslavia, World Cup preliminaries, +91 kg | - Oct. 26 | Ulli Kaden (GER) | Belgrade, Yugoslavia | LPTS 3:2 | |
| Warsaw, Poland, Feliks Stamm Memorial gold medal, +91 kg | + Nov. 14 | Nathaniel Fitch (USA) | Warsaw, Poland | WKO 2 | | + Nov. 15 | Marian Klepka | Warsaw, Poland | WAB 2 | | | | 1988 | | Date | Opponent | Place | Result | |
| Edmonton, Canada, Canadian National Championships winner, +91 kg | + Mar. 1 | R. Ayotte | Edmonton, Canada | WAB 1 | |
| Ottawa, Canada, Canada Cup winner, +91 kg | + June 5 | Elton Wright | Ottawa, Canada | WAB 1 | |
| Karlsruhe, West Germany, Intercup silver medal, +91 kg | + Aug. 26 | Chris Odera | Karlsruhe, West Germany | WPTS 5:0 | | + Aug. 27 | Petar Stoymenov (BUL) | Karlsruhe, West Germany | WPTS 3:2 | | + Aug. 29 | Janusz Zarenkiewicz (POL) | Karlsruhe, West Germany | WWO | | - Aug. 30 | Alexander Miroshnichenko (KAZ) | Karlsruhe, West Germany | LPTS 5:0 | |
| Seoul, South Korea, Olympic Games gold medal for Canada, +91kg | + Sept. 26 | Chris Odera | Seoul, South Korea | WRSCH 2 | | + Sept. 28 | Ulli Kaden (GER) | Seoul, South Korea | WRSCH 1 | | + Sept. 29 | Janusz Zarenkiewicz (POL) | Seoul, South Korea | WWO | | + Oct. 2 | Riddick Bowe (USA) | Seoul, South Korea | WRSC 2 |
Professional record| | | 1989 | | Date | Opponent | Place | Result | | + June 27 | Al Malcolm | Kensington, Great Britain | TKO 2 | | + July 21 | Bruce Johnson | Atlantic City, USA | TKO 2 | | + Sept. 25 | Andrew Gerrard | Crystal Palace, Great Britain | TKO 4 | | + Oct. 10 | Steve Garber | Hull, Great Britain | KO 1 | | + Nov. 5 | Melvin Epps | Kensington, Great Britain | WDQ 2 | | + Dec. 18 | Greg Gorrell | Kitchener, Canada | TKO 5 | | | | 1990 | | Date | Opponent | Place | Result | | + Jan. 31 | Noel Quarless | Bethnal Green, Great Britain | TKO 2 | | + Mar. 22 | Calvin Jones | Gateshead, Great Britain | KO 1 | | + Apr. 14 | Michael Simuwelu | Kensington, Great Britain | TKO 1 | | + May 9 | Jorge Alfredo Dascola | Kensington, Great Britain | KO 1 | | + May 20 | Dan Murphy | Sheffield, Great Britain | TKO 6 | | + June 27 | Ossie Ocasio | Kensington, Great Britain | W 8 | | + July 11 | Mike Acey | Kitchener, Canada | TKO 2 | | + Oct. 31 | Jean Chanet | Crystal Palace, Great Britain | cTKO 6 | | (Won European Heavyweight Title) | | | | 1991 | | Date | Opponent | Place | Result | | + Mar. 6 | Gary Mason | Wembley, Great Britain | TKO 7 | | (Retained European Heavyweight Title and won British Heavyweight Title) | | + July 12 | Mike Weaver | Stateline, USA | TKO 6 | | + Sept. 30 | Glenn McCrory | Kensington, Great Britain | KO 2 | | (Retained European & British Heavyweight Titles) | | + Nov. 23 | Tyrell Biggs | Atlanta, USA | TKO 3 | | | | 1992 | | Date | Opponent | Place | Result | | + Feb. 1 | Levi Billups | Las Vegas, USA | W 10 | | + Apr. 30 | Derek Williams | Kensington, Great Britain | TKO 3 | | (Retained European & British Heavyweight Titles and won Commonwealth Heavyweight Title) | | + Aug. 11 | Mike Dixon | Atlantic City, USA | TKO 4 | | + Oct. 31 | Donovan Ruddock | Kensington, Great Britain | TKO 2 | | (Won WBC Heavyweight Final Title Eliminator and retained Commonwealth Heavyweight Title) | | | | 1993 | | Date | Opponent | Place | Result | |
| (December 1992: Awarded WBC Heavyweight Title) | + May 8 | Tony Tucker | Las Vegas, USA | W 12 | | (Retained WBC Heavyweight Title) | | + Oct. 1 | Frank Bruno | Cardiff, Great Britain | TKO 7 | | (Retained WBC Heavyweight Title) | | | | 1994 | | Date | Opponent | Place | Result | | + May 6 | Phil Jackson | Atlantic City, USA | TKO 8 | | (Retained WBC Heavyweight Title) | | - Sept. 24 | Oliver McCALL | Wembley, Great Britain | TKO by 2 | | (Lost WBC Heavyweight Title) | | | | 1995 | | Date | Opponent | Place | Result | | + May 13 | Lionel Butler | Sacramento, USA | TKO 5 | | + July 2 | Justin Fortune | Dublin, Ireland | TKO 4 | | + Oct. 7 | Tommy Morrison | Atlantic City, USA | TKO 6 | | | | 1996 | | Date | Opponent | Place | Result | | + May 10 | Ray Mercer | New York, USA | W 10 | | | | 1997 | | Date | Opponent | Place | Result | | + Feb. 7 | Oliver McCALL | Las Vegas, USA | TKO 5 | | (Regained vacant WBC Heavyweight Title) | | + July 12 | Henry Akinwande | Stateline, USA | WDQ 5 | | (Retained WBC Heavyweight Title) | | + Oct. 4 | Andrew Golota | Atlantic City, USA | KO 1 | | (Retained WBC Heavyweight Title) | | | | 1998 | | Date | Opponent | Place | Result | | + Mar. 28 | Shannon Briggs | Atlantic City, USA | TKO 5 | | (Retained WBC Heavyweight Title) | | + Sept. 26 | Zeljko Mavrovic | Uncasville, USA | W 12 | | (Retained WBC Heavyweight Title) | | | | 1999 | | Date | Opponent | Place | Result | | = Mar. 13 | Evander Holyfield | New York, USA | Draw 12 | | (Retained WBC and For WBA-IBF Heavyweight Titles) | | + Nov. 13 | Evander Holyfield | Las Vegas, USA | W 12 | | (Retained WBC, won WBA-IBF and vacant IBO Heavyweight Titles) | | | | 2000 | | Date | Opponent | Place | Result | | + Apr. 29 | Michael Grant | New York, USA | TKO 2 | | (Retained WBC, IBF and IBO Heavyweight Titles) | | + July 15 | Frans Botha | Millwall, Great Britain | TKO 2 | | (Retained WBC, IBF and IBO Heavyweight Titles) | | + Nov. 11 | David Tua | Las Vegas, USA | W 12 | | (Retained WBC, IBF and IBO Heavyweight Titles) | | | | 2001 | | Date | Opponent | Place | Result | | - Apr. 22 | Hasim Rahman | Brakpan, South Africa | KO by 5 | | (Lost WBC, IBF and IBO Heavyweight Titles) | | + Nov. 17 | Hasim Rahman | Las Vegas, USA | KO 4 | | (Regained WBC, IBF and IBO Heavyweight Titles) | | | | 2002 | | Date | Opponent | Place | Result | | + June 8 | Mike Tyson | Memphis, USA | KO 8 | | (Retained WBC, IBF and IBO Heavyweight Titles) | | | | 2003 | | Date | Opponent | Place | Result | | + June 21 | Vitaly Klitschko | Los Angeles, USA | cTKO 6 | | (Retained WBC, IBF and IBO Heavyweight Titles) |
Summary
Total bouts: 44, Won: 41 (32 inside the limit), Lost: 2 (2 inside the limit), Draw: 1, NC: 0, ND: 0
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