Event | Value | Date | Swimmer | Meet | |
---|---|---|---|---|---|
Butterfly 200 m | 01:5151 | Jul 29, 2009 | Michael Phelps United States | 2009 World Championships Rome, Italy | |
Butterfly 50 m | 2276 | Jul 23, 2017 | Caeleb Dressel United States | 2017 World Championships Budapest, Hungary | |
Butterfly 100 m | 4950 | Jul 26, 2019 | Caeleb Dressel United States | 2019 World Championships Gwangju, South Korea |
Please visit this site for the official version of NR USA