What champion has gone the fifteen round distance the most times in title defenses?

What champion has gone the fifteen round distance the most times in title defenses?

 

Dont know if he has the record but Miguel Canto went the 15 round limit in 17 of his title fights.

 

Canto may be the answer. Willie Pep, only 6, just as Nicolino Loche. I can't think of anyone else who would come close to 17.

 

duran?

 

duran knocked em out before the 15th

 

Canto number seems hard to beat...I think Rosenbloom had like 10 or 11.

 

only 2 times viruet and leonard 1

 

hmm