Resolution criteria

This market will resolve to the swimmer who wins the Women's 100 metre backstroke final at the 2025 World Aquatics Championships in Singapore. The final is scheduled for July 29, 2025. Official results will be sourced from the World Aquatics website: World Aquatics Championships – Women's 100m Backstroke.

Background

The Women's 100m backstroke at the 2025 World Aquatics Championships features a highly anticipated rivalry between Regan Smith of the United States and Kaylee McKeown of Australia. Smith holds the world record at 57.13 seconds, set during the 2024 U.S. Olympic Trials, while McKeown secured Olympic gold in Paris with a time of 57.33 seconds. Both athletes have posted sub-58-second times this season, with Smith leading at 57.46 and McKeown close behind at 57.65. (worldaquatics.com)

Other notable competitors include Katharine Berkoff of the United States, who earned bronze at the 2024 Olympics with a personal best of 57.83, and Canada's Kylie Masse, a consistent international medalist with a lifetime best of 57.70. (worldaquatics.com)

In the semifinals held on July 28, 2025, Smith posted the fastest time of 58.21 seconds, followed by McKeown at 58.44 seconds, setting the stage for a competitive final. (abc.net.au)

Considerations

The final is expected to be a close contest, with Smith and McKeown both demonstrating strong performances leading up to the event. Berkoff and Masse also remain strong contenders, adding depth to the field. Traders should monitor any developments or updates from the World Aquatics Championships that may influence the outcome.