Marvin Johnson

Within the recorded range there are 49 bouts between 1973 and 1987, about one every 3.5 months. 35 of the 43 wins came inside the distance, 7 of them in the first round. Of the 6 losses, 5 came inside the distance and 1 on the cards. The best win came against Leslie Stewart in 1986, who was rated 2246 at the time.

Measured by the gap on the day, the biggest upset was the win over Mate Parlov in 1978. The record includes 2 wins against a higher-rated opponent. The biggest upset conceded was the loss to Matthew Saad Muhammad in 1977. The rating held roughly steady across the final four bouts.