Naoya Inoue's amateur record is 75-6 with 48 KOs. That's good for a 65% KO rate, which is kinda insane because of the pillows and headgear and they've only got 3 rounds to do it. Who are some other KO artists in amateur boxing history?
across his olympic games, friendship games, and world amateur championships teofilo steveonson has a 62% KO rate at 16/26
The "unconfirmed" record of Courage Tshabalala was 71-1 with 71 kos, or something like that. Which is why everyone was so interested in him. Duane Bobick was a confirmed 93-13 with 61 KOs in the amateurs.