VICTORIA, Canada, Aug 20 (AFP): Olympic and world champion Aaron Peirsol broke his own 200m backstroke world record here Saturday with a time of 1min 54.44sec at the Pan Pacific Swimming Championships.
The American knocked 22-hundredths of a second off the mark of 1:54.66 that he set in winning the world title in Montreal on July 29 last year.
Peirsol finished well ahead of US superstar Michael Phelps, who took silver in 1:56.81.
Japan's Tomomi Morita claimed bronze in 1:58.53.
Peirsol, 23, remained unbeaten in the 200m backstroke in international competition since 2000 - when he finished runner-up to former backstroke king Lenny Krayzelburg at the Sydney Olympics.
He said it's a streak he plans to keep going for as long as he continues swimming.