
Within the recorded range there are 57 bouts between 1969 and 1990, about one every 4.5 months. 11 of the 35 wins came inside the distance, 2 of them in the first round. Of the 18 losses, 2 came inside the distance and 16 on the cards. The highest it has been is 2262, in 1977; it stands at 1870 now. The best win came against George Foreman in 1977, who was rated 2580 at the time.
Measured by the gap on the day, the biggest upset was the win over Ron Lyle in 1975. The record includes 4 wins against a higher-rated opponent. The biggest upset conceded was the loss to Eddie Richardson in 1987. The rating held roughly steady across the final four bouts.