Boxing in The 1930s - 1931

1931

• April 24- Tony Canzoneri becomes the second man to win world titles in three divisions, and the first one since Bob Fitzsimmons in the 19th century, by knocking out Jack Kid Berg in round three to win the world's Jr. Welterweight title, in Chicago.
• May 22- Battling Battalino retains his world Featherweight title, with a ten round decision over Fidel LaBarba, in New York.
• July 3- Max Schmeling retains the world Heavyweight title, with a fifteenth round knockout of Young Stribling, in Cleveland.
• July 15- Kid Chocolate becomes Cuba's first world boxing champion in history, knocking out world Jr. Lightweight champion Benny Bass in seven rounds, at Philadelphia.
• July 23- Battling Battalino retains the world Featherweight title with a ten round decision over future world champion Freddie Miller, at Cincinnati.
• August 5- Maxie Rosenbloom retains his world Light-Heavyweight title with a fifteen round decision over former world champion Jimmy Slattery, at their New York rematch.
• September 10- Tony Canzoneri retains both his Jr. Welterweight and Lightweight world belts, with a fifteen round unanimous decision over former world champion Jack Berg, at their New York rematch.
• October 26- Young Perez becomes the first world champion from Tunisia when he beats Frankie Genaro by knockout in round two at Paris, France, for the National Boxing Association's world Flyweight title.
• October 27- Panama Al Brown retains his world Bantamweight title with a fifteen round decision over Eugene Huat at their rematch, which took place in Montreal, Canada.
• November 20- Tony Canzoneri retains his world Lightweight title by a fifteen round decision over world Jr. Lightweight champion Kid Chocolate, in New York.