Boxing: one punch = KO?

I was watching Diggstown, and there’s one scene where the boxer walks up, throws one punch, and the guy goes down and out.

Has this ever happened in a major professional bout, like a famous instance? No jabbing, no contact at all other than that one hit.

Marciano-Walcott I.

Practically took his head off. I’m sure it’s on youtube.

Foreman-Moorer more recently.

ETA: I also remember Jimmy Thunder knocking out a guy with the first punch of the fight. I have the “match” on a tape.

No cite from me without some searching, and I don’t recall one offhand, but I can vouch for many first round KO’s. Not too long ago, within the past year, ESPN2’s Friday Night Fights had several bouts decided within the first three minutes. This worked a real burden on their scheduling and they had to resort to a lot of filler and promos.

I can’t think of a reliable source for this info offhand, so I’m just waiting for a more efficient Googler to get you some one-punch stats. I’d be willing to bet we’ve had at least one this past 12 months – somewhere. Maybe not on TV, but somewhere.

Roy Jones Jr. also had a one-punch KO, and it was a body blow. I don’t remember which victim.

Walcott-Charles III

Robinson-Fulmer II.

Do you mean specifically first punch thrown in the entire fight?

Yes. Perhaps I should’ve said “*first * punch”

Google showed me some (very impressive, I might add) one-punch knockouts, but they weren’t necessarily first-contact-of-the-fight; some were even in later rounds.

The fighters touch gloves, back up, maybe dance around a little (no contact), then BAM… down goes Fraaaa-zuh (or whomever).

Kermit Washington v Rudy Tomjanovich?

Lol.

K-1 rather than boxing, but Kid Yamamoto scored a one-hit knockout in under five seconds when he landed a knee right into his opponent’s chin. He throws a second punch before the ref stops the fight, but the guy was already down and out. This was 2005 or 2006.

Video:

His sister is also a top-level fighter, and smoking hot.

That . . . is awesome!

I looked at it three times, and still didn’t see the hit.

Here’s a flying armbar . Other guy already threw one punch though.

Don’t have links to any but I know they’ve happened.