Astonishingly, she is also the solo owner of the top ten times in the women’s event in history. Women have been competing in it at the world championships since 2001, but they’re swimming in it for the first time in the Summer Games in Tokyo. Olympic-size pools are 50 meters in length, so it takes 30 laps to reach 1,500 meters, which is 0.93 miles. It is the longest Olympic swimming event that’s not in open water. If you’re swimming in your local pool, which is usually 25 yards long, that’s 66 laps.

Source: New York Times July 28, 2021 02:45 UTC