LOS ANGELES (AFP) — Nine-time Olympic gold medalist Katie Ledecky clocked the second-fastest women’s 1500-meter freestyle time in history on Wednesday to launch the US Pro Swim Series event in Austin, Texas, with a dominant victory.

Ledecky was untouchable as she cruised to victory in 15 minutes and 23.21 seconds, more than a minute in front of 16-year-old runner-up Brinkleigh Hansen, who touched in 16:31.31.

Becca Mann was third in 16:35.09.

Ledecky didn’t threaten her world record of 15:20.48, set in 2018, but she used a strong late surge to improve on the second-best ever time of 15:24.51 that she had set at the Pro Swim Series in Fort Lauderdale, Florida, last April.

Since then she has gone on to win her sixth world title in the event at last year’s world championships in Singapore.

She has won both Olympic gold medals — at Tokyo in 2021 and Paris 2024 — since the 1500m free was made an Olympic event for women.

Now 28, the American who won her first Olympic gold in the 800m freestyle at the 2012 London Games is showing no signs of fading as the 2028 Los Angeles Olympics beckon.

Ledecky, the only woman to beak 15:30 for the 1500m free, did so for the 10th time.

She owns the top 12 times ever and 24 of the top 25, with Italian Simon Quadrella’s runner-up finish to Ledecky in 15:31.79 at last year’s world championships now slotting in as the 13th-fastest ever.

Men’s world record-holder Bobby Finke, Ledecky’s training partner in Florida, won the men’s 1500m free in 15:01.70. Ireland’s Daniel Wiffen, the reigning 800m Olympic champion, was second in 15:04.98.

Olympic stars Summer McIntosh and Leon Marchand led the way into Thursday’s finals of the 200m individual medley, in which they are both world record-holders.

Canada’s McIntosh, winner of three gold medals at the Paris Games and four world titles in Singapore last year, touched in 2:09.27 to top the semi-final times ahead of Teagan O’Dell (2:13.15). Emma Weyant was third fastest, winning her semi in 2:14.74.

France’s Marchand, who won four golds in Paris, topped the men’s 200m medley semifinals in 2:00.10 ahead of Kieran Smith in 2:00.19 and Carson Foster in 2:00.24.

World record-holder Regan Smith of the United States won the women’s 100m backstroke in 57.98 seconds, and reigning world campion Anna Elendt of Germany won the women’s 100m breaststroke in 1:06.91.