Olympic Swimming 2024: Women's 200M Freestyle Medal Winners, Times and Results

Australia's Mollie O'Callaghan delivered one of the biggest upsets yet in the pool at the 2024 Summer Olympics.

She won the 200-meter freestyle to end the dominance of her Australian teammate Ariarne Titmus in the event. Titmus finished second, and Hong Kong's Siobhan Bernadette Haughey placed third.

O'Callaghan's winning time of 1:53.27 set a new Olympic record, besting Titmus' previous mark of 1:53.50 and just over one second shy of her world record of 1:52.23.

The full results are as follows:

1. Mollie O'Callaghan (Australia)- 1:53.27
2. Ariarne Titmus (Australia)- 1:53.81
3. Siobhan Bernadette Haughey (Hong Kong)- 1:54.55
4. Mary-Sophie Harvey (Canada)- 1:55.29
5. Junxuan Yang (China)- 1:55.38
6. Barbora Seemanova (Czech Republic)- 1:55.47
7. Erika Fairweather (New Zealand)- 1:55.59
8. Claire Weinstein (USA)- 1:56.60

Titmus entered Monday's final as the reigning champion, two-time 400-meter Olympic champion as well as the world and Olympic record holder in the 200-meter freestyle.

Titmus qualified with the best time for Monday's final and appeared ready to take home her second-ever individual double at the Summer Olympics.

Instead, O'Callaghan ended the hold that Titmus and Katie Ledecky, the 2016 gold medalist, had on the mid-range freestyle events at the Olympics. Titmus swept the 200 and 400 in Tokyo and Ledecky did the same thing in Rio de Janeiro.