Magnificent seven as Americans complete Pan Pacs rout on final day

American swimmers completed a brutal Pan Pacific demolition job on their rivals on Sunday by winning seven out of 10 gold medals on the final day of the pool competition.

Cate Campbell led the resistance as the Aussie darling won the women’s 50-meter freestyle before producing an astonishing anchor leg in the 4x100meter medley relay to finish with five gold medals and exorcise her Olympic demons in style.

Katie Ledecky scooped her third gold medal of the competition by pulverizing the field in the women’s 1,500-meter free, an event that has been added to the schedule for 2020.

The American world record holder, who won the 400- and 800-meter freestyle titles earlier in the meet, touched the wall in 15:38.97 with three swimmers still to turn for their final lap.

Ledecky welcomed the extra workload at the 2020 Olympics as the US finished the pool competition with 18 gold medals, 10 more than Australia with hosts Japan third on six.

American Kathleen Baker captured gold in the women’s 200-meter backstroke in 2:06.14, tipping out Ruck, who took silver for her fifth medal of the week.

Zane Grothe beat fellow American Jordan Wilimovsky to win the men’s 800-meter free in a championship best 7:43.74.

Olympic champion Ryan Murphy credited his “lucky socks” as he made it four out of four on the night for the Americans by dominating the men’s 200-meter backstroke, winning in a meet best 1:53.57 to complete the 100-, 200-meter double.

Campbell stopped the rot as the Australian defended her title in the women’s 50-meter free, winning in a Pan Pacific record of 23.81 from American Simone Manuel (24.22) and countrywoman Emma McKeon (24.34).

Normal service was resumed when Michael Andrew ambushed world champion Caeleb Dressel to win the men’s 50-meter freestyle, giving the US their fifth gold medal of the night.

Andrew clocked 21.46, almost half a second clear of Dressel.

Micah Sumrall made it six out of seven for the US as she stormed to victory in the women’s 200-meter breaststroke in 2:21.88.

Japan struck a blow for the underdog as world record holder Ippei Watanabe conjured an electric finish to win gold in a meet best of 2:07.75.

Nathan Adrian edged Japan’s Katsumi Nakamura in a rousing finale to give the Americans gold No.7 by just five hundredths in the men’s medley relay.