The competition consisted of two rounds: heats and finals. The swimmers with the best 8 times in the heats advanced to final A, where they competed for the top 8 places. The swimmers with the next 8 times in the heats swam in final B, for ninth through the sixteenth place. Swim-offs were used as necessary to determine advancement.
Results
Heats
Rule: The eight fastest swimmers advance to final A (Q), while the next eight to final B (q).[2]