Singapore 2025 World Aquatics Championships - Day 18: Swimming

Gretchen Walsh of Team United States celebrates after winning gold in the Women's 100m Butterfly Final on day 18 of the Singapore 2025 World Aquatics Championships at World Aquatics Championships Arena on July 28, 2025 in Singapore. 

 Getty Image/Maddie Meyer

Gretchen Walsh is once again on top of the world.

The Nashville native and Harpeth Hall School graduate captured a gold medal in the women’s 100-meter butterfly race Monday at the 2025 World Aquatics Championships in Singapore.