Perfect shot or lucky punch...?!?

[LEGION]

I wonder about the difference...
I consider Tarvers knockout over RJJ or Rahman knocking out Lewis a lucky punch...
However Tuas knockout over Ruiz or Brewster knocking out Golota a perfect shot...

But you can easily switch that I guess...

Whats your opinion ?!? And some more examples would be great...

If you throw a punch and it hits someone thats not lucky. After all why would a boxer throw a punch without meaning to KO there opponent. Isnt the aim of boxing to hit your opponent. its like a basketball player throwing the ball from one end of the court and scoring three points. He obviously meant to score the points so he's not lucky. Obviously the chances of him scoring a basket is slim, but if you try something and it works thats not lucky.

Well...somehow the term "lucky punch" must have developed...

All the people who fight Floyd Mayweather Jr. probably came up with it.