Has anyone EVER remained undefeated as long as Floyd?

[Larry the boss]

16 years and counting,if so please enlighten me

[bojangles1987]

You mean 13? He has about 3 years off due to "retirement" and "vacation" since he turned pro.

[4Corners]

He has one year off, 2008. So I guess 15 years.

[Light_Speed]

Ricardo Lopez.

[Larry the boss]

you mean 13? He has about 3 years off due to "retirement" and "vacation" since he turned pro.

only year he did not fight in was 2008

[Larry the boss]

Ricardo Lopez.

But he had a draw

[CHOWWOKKA]

Marciano, undefeated for 70+ years

[Light_Speed]

But he had a draw

You said "undefeated". Nobody beat him.

[-DSG-]

Nobody cares

[catalinul]

If you're going time wise Spadafoira has been undefeated more which goes to show it doesn't mean much.