1 mile swim record

The longest race in international competitive swimming (in a pool) is 1500 meters. It is 0.93 of a mile and is often referred to colloquially as "the mile." In the U.S., swimmers also swim the 1650 yard freestyle, which is also sometimes called "the mile."

In open water, there is a 1 mile race, but the world records differ from venue to venue. Thus, records are typically specific to the place -- there is no 1 record for entire world.

For the 1500 meter freestyle:

The world record for the long-course (50 meter pool) men's 1500 meter freestyle was set at the 2012 London Olympics by the Chinese swimmer, Sun Yang, with a time of 14:31.02. That is an average time per 100 meters of 58.07 seconds.

The world record for the short course (25 meter pool) men's 1500 meter freestyle was set by Australian swimmer, Grant Hackett, at the 2001 Australian Short Course Championships in Perth, Australia. His time was 14:10.10, making his average time per 100 meters 56.7 seconds.

The world record for the long course (50 meter pool) women's 1500 meter freestyle was set by U.S. swimmer, Kate Ziegler, at the 2007 TYR Meet of Champions in Mission Viejo, CA. Her time was 15:42.54, making her average time per 100 meters 1:02.84.

The world record for the short course (25 meter pool) women's 1500 meter freestyle was set by Danish swimmer, Lotte Friis, at an unnamed 2009 local club meet in Copenhagen, Denmark. Her time was 15:28.65, making her average time per 100 meters 1:01.91.