• Canadian wins in championship-record time

• Australia hold off Ledecky and US in 4x200 relay

• US swimmers claim six golds on second night

Summer McIntosh of Canada led all the way in winning the 400m individual medley at the Pan Pacific Championships on Thursday night, bouncing back after a runner-up finish in the 200 freestyle.

Australia led all but 150 meters of the women’s 4x200 freestyle relay, with the team of Inez Miller, Lani Pallister, Hannah Casey and Milla Jansen winning in 7min 42.40sec to lower the country’s championship mark of 7:44.12 set at the 2018 Pan Pacs.

• American wins 1500m freestyle in 15min 36.09sec

• Walsh beats Douglass to claim 50m butterfly title

• Urlando breaks Michael Phelps’ 20-year-old record

Katie Ledecky won the 1500m freestyle on opening night of the Pan Pacific Championships on Wednesday, earning the first international medal of her storied career on home soil.

The two-time Olympic champion in the event was under her own world-record pace in the early stages of the 30-lap race, with fans at the outdoor pool in Irvine, California, on their feet cheering throughout.