Here is a list of McLarnin's best fights. For a list of McLarnin's losses, refer to "Jimmy McLarnin Losses".
On October 7, 1932 Jimmy McLarnin faced off against Benny Leonard at age 24. He was coming in with a record of 50-8-3 (19), and Leonard was 36 years old and with a record of 185-21-9 (70). McLarnin stopped Benny Leonard via TKO.
On October 5, 1936 Jimmy McLarnin faced off against Tony Canzoneri at age 28. He was coming in with a record of 54-11-3 (21), and Canzoneri was 27 years old and with a record of 122-17-8 (38). McLarnin won the fight via 10-round unanimous decision.
On September 17, 1934 Jimmy McLarnin fought Barney Ross in a welterweight world-title fight for Ross' The Ring title. McLarnin was 26 years old and with a record of 53-9-3 (21), and Ross was 24 years old and with a record of 53-2-3 (13). McLarnin won the fight via 15-round split decision and is crowned the new welterweight world champion.
On May 29, 1933 Jimmy McLarnin fought Young Corbett III in a welterweight world-title fight for Corbett III's The Ring title. McLarnin was 25 years old and with a record of 52-8-3 (21). McLarnin stopped Young Corbett III via 1st-round TKO and is crowned the new welterweight world champion.