I defeated four world champs in 9 months

James Toney is my answer, though I doubt that's who you're referring to.

 

Mike Tyson ?

 

Rattlif , Berbick, Smith, Thomas ...not sure if this was within a year though

 

Davey Moore ?

 

Terry McGovern?
Terrible wasn't it?

 

i swear its Tyson.

Berbick, Tucker, Smith and Thomas and Holmes?

 

I vote for Sugar Ray Robinson, who between January and October 1942 defeated Fritzie Zivic, Marty Servo, Sammy Angott, and Jake Lamotta.

 

Tony Canzoneri beat Kid Chocolate, Frankie Klick, Baby Arizmendi, and Frankie Klick from October 1933 to June 1934. Unfortunately, it was the same Frankie Klick each time!

Barney Ross beat Tony Canzoneri, Sammy Fuller, Frankie Klick and Jimmy McLarnin between September 1933 and May 1934. However, Sammy Fuller only ever had a claim to a title.

Henry Armstrong beat Ceferino Garcia, Lou Ambers, Baby Arizmendi and Barney Ross between May 1938 and January 1939.

 

Quote:
Originally Posted by mattdonnellon
Terry McGovern?
Terrible wasn't it?
No Matt. My guy beat 4 champions in a nine month period.Was a young sensation....

Well White,Dixon, Erne, and Gans and boy, was he a young sensation!
Did it in 6 months though.................

 

This could be several.

Denny Moyer beat Virgil Akins, Tony DeMarco, Emile Griffith and Benny Kid Paret from December 1959 to August 1960. He also beat Paddy DeMarco a couple of months earlier.