On May 27, 1967, a 29-year-old George Chuvalo (45-13-2, 38 KOs) and Willi Besmanoff met in the ring for the 3rd time,.
Chuvalo came in to the fight on a 10-fight win streak with a 63% KO rate, and was fighting after a gap of 1 month and 23 days.
In the rematch, George Chuvalo stopped Willi Besmanoff via TKO in the 3rd round. Chuvalo improves his record to 46-13-2 (39 KOs)
On August 10, 1972, a 34-year-old George Chuvalo (66-18-2, 57 KOs) and Tommy Burns met in the ring for the 2nd time, in a heavyweight bout.
Chuvalo came in to the fight on a 1-fight losing streak with a 66% KO rate, and was fighting after a gap of 3 months and 9 days.
In the rematch, George Chuvalo stopped Tommy Burns via KO in the 1st round. Chuvalo improves his record to 67-18-2 (58 KOs)
On March 18, 1964, a 26-year-old George Chuvalo (25-8-2, 19 KOs) and Hugh Mercier met in the ring in a heavyweight bout.
Chuvalo came in to the fight on a 1-fight losing streak with a 54% KO rate, and was fighting after a gap of 2 months and 1 day.
George Chuvalo stopped Hugh Mercier via KO in the 1st round. Chuvalo improves his record to 26-8-2 (20 KOs)
On September 15, 1958, a 21-year-old George Chuvalo (14-2-1, 11 KOs) and James J. Parker met in the ring in a heavyweight bout.
Chuvalo came in to the fight after a draw in his last fight with a 64% KO rate, and was fighting after a gap of 2 months and 30 days.
George Chuvalo stopped James J. Parker via KO in the 1st round. Chuvalo improves his record to 15-2-1 (12 KOs)
On December 8, 1977, a 40-year-old George Chuvalo (71-18-2, 62 KOs) and Earl McLeay met in the ring in a heavyweight bout.
Chuvalo came in to the fight on a 5-fight win streak with a 68% KO rate, and was fighting after a gap of 9 months and 1 day.
George Chuvalo stopped Earl McLeay via TKO in the 1st round. Chuvalo improves his record to 72-18-2 (63 KOs)
On April 21, 1958, a 20-year-old George Chuvalo (13-2, 10 KOs) and Howard King met in the ring for the 2nd time,.
Chuvalo came in to the fight on a 1-fight win streak with a 66% KO rate, and was fighting after a gap of 2 months and 25 days.
In the rematch, George Chuvalo stopped Howard King via KO in the 2nd round. Chuvalo improves his record to 14-2 (11 KOs)
On December 11, 1978, a 41-year-old George Chuvalo (72-18-2, 63 KOs) and George Jerome met in the ring in a heavyweight bout.
Chuvalo came in to the fight on a 6-fight win streak with a 68% KO rate, and was fighting after a gap of 1 year and 3 days.
George Chuvalo stopped George Jerome via TKO in the 3rd round. Chuvalo improves his record to 73-18-2 (64 KOs)
On January 28, 1972, a 34-year-old George Chuvalo (64-17-2, 55 KOs) and Charley Chase met in the ring in a heavyweight bout.
Chuvalo came in to the fight on a 1-fight win streak with a 66% KO rate, and was fighting after a gap of 2 months and 11 days.
George Chuvalo stopped Charley Chase via TKO in the 6th round. Chuvalo improves his record to 65-17-2 (56 KOs)
On March 29, 1966, a 28-year-old George Chuvalo (34-11-2, 27 KOs) got a shot at the heavyweight WBC and The Ring title held by 24-year-old American boxer Muhammad Ali (22-0, 18 KOs).
Chuvalo came in to the fight on a 1-fight losing streak with a 57% KO rate, and was fighting after a gap of 2 months and 4 days. Ali was on a 22-fight win streak with a 81% KO rate, and fighting after a layoff of 4 months and 7 days.
Muhammad Ali defeated George Chuvalo via unanimous decision and successfully defended his WBC and The Ring heavyweight titles. Ali improves his record to 23-0, while Chuvalo adds a loss to his record at 34-12-2.
On October 24, 1970, a 33-year-old George Chuvalo (60-16-2, 52 KOs) and Tommy Burns met in the ring.
Chuvalo came in to the fight on a 1-fight win streak with a 66% KO rate, and was fighting after a gap of 2 months and 9 days.
George Chuvalo stopped Tommy Burns via KO in the 1st round. Chuvalo improves his record to 61-16-2 (53 KOs)