Jessicah Schipper won her second gold medal of the Pan Pacific Swimming Championships with victory in the 100m butterfly in Canada.

Following on from her world record in the 200m butterfly on Day 1, Schipper clocked a meet record time of 57.30 seconds to beat home Americans Rachel Komisarz (58.75) and Mary Descenza (59.03).

Schipper’s time was just 0.69 seconds outside of the world record set by Inge de Bruijn of the Netherlands when she won the Sydney 2000 Olympics.

Compatriots Bronte Barratt and Linda MacKenzie finished fifth and sixth in the 400m freestyle, clocking 4 minutes 08.68 seconds and 4:09.95 respectively behind Japanese 800m Olympic champion Ai Shibata.

The 4x100m freestyle relay team of Shayne Reese, Kelly Stubbins, MacKenzie and Melanie Schlanger finished third behind the US, clocking 3:41.84.

The Americans were under the German’s world record pace for the first 200 metres. Canada beat Australia by 1-hundredth of a second.

In the men’s 4x100m freestyle the United States broke the world record with a time of 3 minutes 12.46 seconds. The US team of Michael Phelps, Neil Walker, Cullen Jones and Jason Lezak broke the previous mark of 3:13.17 set by South Africa in winning gold at the 2004 Athens Olympics.

Canada won the silver and Australia’s young team were third in 3:16.42.

Another world record was set by Olympic and world champion Aaron Peirsol in the 200m backstroke.

Peirsol who has not been beaten in this event in international competition since 2000, knocked 22-hundredths of a second oh his won mark clocking 1 minute 54.44s.

The American finished well ahead of team-mate Michael Phelps and Japan's Tomomi Morita.

With one day left of the meet the Americans are clear leaders with 16 gold and 30 medals. Japan are second and Australia third.

AOC