Date 13 August 2003 | ||
The Men's 100 Butterfly event at the 2003 Pan American Games took place on August 13, 2003 (Day 12 of the Games). Benjamin Michaelson (USA) won the 100 butterfly in 53.04, bettering the Games record of 53.33.
References
Swimming at the 2003 Pan American Games – Men's 100 metre butterfly Wikipedia(Text) CC BY-SA