Anthony Joshua 95.5% KO ratio, Deontay Wilder 95.2% KO ratio

[vaynardevil]

Windmill is 1 hit wonder
Obv hits harder

[South Champion]

For the record, next after these two in history are:

Rocky Marciano with 87.8%
Vitali Klitschko with 87.2%
Frank Bruno with 84.4%

For me, Klitschko's percentage is the most impressive since he fought to age 41.

Both Wilder and AJ got most of their KOs before stepping up in competition. Bermane and Fury went the distanc with Wilder, and Parker went the distance with AJ. Give it some time, and both of their KO percentages will drop below Vitali.