| 33 Wins (16 knockouts, 17 decisions), 12 Losses (11 knockouts, 1 decision) [12] |
| Result | Record | Opponent | Type | Round | Date | Location | Notes |
| Loss | 12-2 | Kallie Knoetze | KO | 5 | 10 Sep 1977 | Ellis Park Tennis Stadium, Johannesburg, South Africa |
| Loss | 51-7-1 | Joe Bugner | KO | 1 | 12 Oct 1976 | Empire Pool, London, England | BBBofC British/Commonwealth/EBU Heavyweight Titles. |
| Loss | 51-2 | Muhammad Ali | TKO | 5 | 24 May 1976 | Olympiahalle, Munich, Germany | WBA/WBC Heavyweight Titles.
Referee stopped the bout at 2:05 of the fifth round. |
| Win | 21-2-1 | Bernd August | TKO | 3 | 6 Apr 1976 | Royal Albert Hall, London, England | EBU Heavyweight Title.
Referee stopped the bout at 1:38 of the third round. |
| Win | 32-12-1 | Terry Krueger | TKO | 3 | 25 Nov 1975 | Royal Albert Hall, London, England | Referee stopped the bout at 2:29 of the third round. |
| Win | 27-5-2 | Danny McAlinden | KO | 2 | 4 Nov 1975 | Emp
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