Gretchen Walsh won her first individual long course world title by nearly breaking her own 100m butterfly world record. Walsh clocked 54.73 seconds at the World Swimming Championships, just off her own record of 54.60 from May 3. She owns the top eight times in history.

Gretchen Walsh bounced back from illness to win her first individual world title in the 100m butterfly, just 0.13 seconds off her own world record.