Floyd Mayweather Jr.

Within the recorded range there are 50 bouts between 1996 and 2017, about one every 5.1 months. It has been 9 years since the last bout. 27 of the 50 wins came inside the distance, 4 of them in the first round. From 1996 they put together 50 straight wins. The best win came against Manny Pacquiao in 2015, who was rated 2663 at the time.

Measured by the gap on the day, the biggest upset was the win over Genaro Hernández in 1998. The record includes 2 wins against a higher-rated opponent. The rating was climbing across the final four bouts.