BREAKING NEWS: NOT Simone Biles, Katie Ledecky Becomes most DECORATED America woman makes more Olympic history

Katie Ledecky delved deeper into Olympic history books here on Thursday with a silver medal in the women’s 4×200-meter freestyle.

It was the 13th medal of Ledecky’s glittering career, one night after her 12th, and it took her into the clear as the most decorated female Olympic swimmer ever.

Ledecky also became the most decorated American female Olympian ever. She surpassed Jenny Thompson for both honors.

But she and her U.S. relay teammates — Claire Weinstein, Paige Madden and Erin Gemmell — were no match for Australia.

The vaunted Aussie foursome of Olympic champion Mollie O’Callaghan, Lani Pallister, Brianna Throssell and world record-holder Ariarne Titmus won gold in Olympic record time (7:38.08), and set the stage for a broader head-to-head battle over the final three days of the 2024 Olympic swimming competition.

The relay victory left Australia atop the meet’s gold-medal table, with five to Team USA’s four.

And while the U.S. has more upside across the 11 finals that remain, a decades-long run of dominance in Olympic swimming seems to be in danger.

The first two-thirds of the meet have fallen short of American expectations. They have produced plenty of medals — 20 in total. But most gold medal threats have fallen short of the top step of the podium.

Ryan Murphy, for example, took silver in the 100-meter backstroke, then failed to make the final of the 200. Bobby Finke finished second in the 800-meter freestyle, a race he won in Tokyo three years earlier. Neither Chris Guiliano nor Jack Alexy came close to sprint freestyle medals. And the men’s 4×200 relay came second to Great Britain.

On the women’s side, the 4×100 relay team also came up short against Australia. Regan Smith lost her first of two backstroke duels with Australia’s Kaylee McKeown and settled for silver again in the 200. Lilly King finished fourth in the 100 breaststroke by 0.01 seconds.

Others — like Torri Huske in the 100 free, or Nic Fink in the men’s 100 breast, or Luke Hobson in the men’s 200 free — have exceeded expectations, but their medals have been silver or bronze.

The only golds have come from Huske, Ledecky, Kate Douglass and the men’s 4×100 relay on opening night.

The final weekend of competition will pack plenty of medal potential for both the U.S. and Australia.