Swimming at the 2001 World Aquatics Championships – Men's 200 metre butterfly : ウィキペディア英語版
Swimming at the 2001 World Aquatics Championships – Men's 200 metre butterfly
(詳細はMichael Phelps broke his own world record with a time of 1:54.58, bettering his previous record of 1:54.92. For Phelps, this was also his first world title since finishing 5th in the same event at the 2000 Summer Olympics. ==Results==