Stanford-bound Katie Ledecky did it again Sunday, breaking a world record in winning the 1,500-meter freestyle on the final night of the Pan Pacific championships at Gold Coast, Australia.
Ledecky, who will be a high school senior this fall in Bethesda, Maryland, broke her own mark by nearly six seconds in a time of 15 minutes 28.36 seconds. She finished almost 40 meters ahead of Lauren Boyle, a former Cal swimmer who competes for New Zealand. It was Ledecky's third world record in the past 15 days and fifth this summer.
"That was probably one of my most painful races," she told reporters in Australia. "It was painful, but it paid off in the end."
Ledecky, 17, is the first woman to win four individual gold medals at a single Pan Pacific and was a member of the U.S.'s winning 800 freestyle relay team.
Stanford grad Maya DiRado won the 200 individual medley, and ex-Cal star Nathan Adrian anchored America's winning men's 400 medley relay team that included Michael Phelps.
Lo'eau LaBonta broke a 0-0 tie in the 57th minute, and No. 6 Stanford (2-0) beat No. 18 Duke 2-0 in Chapel Hill, North Carolina.
Wire services contributed to this report.