Jim Brown had the following podium finishes at major championships: 1st in the 1930 British Empire Games 4×110 yards Relay (with [Johnny Fitzpatrick], [Ralph Adams], and the non-Olympian Leigh Miller). Brown also competed in the 1930 British Empire Games 100 yards but was eliminated in the heats.
Personal Best: 100 – 10.6 (1932).
|1932 Summer||22||Los Angeles||Athletics||Men's 4 × 100 metres Relay||Canada||CAN||4|
|1932 Summer||22||Los Angeles||Athletics||Canada||CAN||Final||4||41.3||3|
|1932 Summer||22||Los Angeles||Athletics||Canada||CAN||Round One||Heat Two||3||QU||45.0|