Who Scored KOs In The Most Different Rounds

[OctoberRed]

Joe Gans was involved in fights that ended in knockouts in 17 different rounds:

Wins: 1-15 except round 13.
Losses: rounds 17, 21 and 23.

I think we have a winner!

[The Old LefHook]

Gans looks like the new leader!

[BattlingNelson]

Joe Gans was involved in fights that ended in knockouts in 17 different rounds:

Wins: 1-15 except round 13.
Losses: rounds 17, 21 and 23.

Gans also has the win in the longest ever gloved fight against Battling Nelson. As you know it ended with Gans a winner by dq in round 42.

I don’t know if that fight should count as well. It depends how ko is defined. If it’s defined in the broad sense as a win before the final bell, then it’s in.

[TBear]

Not Duran because he never scored a 9th round ko.

Round of kos:
1st-21 kos
2nd-8
3rd-6
4th-7
5th-2
6th-6
7th-6
8th-6
9th-0
10th-1
11th-1
12th-1
13th-2
14th-2
15th-1