 "(*)" unofficial

James Rector (in the 15th heat and the third semi-final) and Reggie Walker (in the first semi-final and final) both equalized the standing Olympic record.Reggie Walker's actual time in the first semi-final was 10.7, but was rounded up to the nearest fifth in accordance with rules in force at the time, so his time was given as 10.Times were kept for the winning runner in each heat only.