In the sport of
athletics, the
four-minute mile is the act of completing the
mile run (1,760
yards, or 1,609.344 metres) in less than four
minutes. It was first achieved in 1954 by
Roger Bannister in 3:59.4. The "four-minute barrier" has since been broken by many male athletes, and is now the standard of all male professional
middle distance runners. In the last 50 years the
mile record has been lowered by almost 17 seconds. Running a mile in four minutes translates to a speed of 15 miles per hour (24.14 km/h, or 2:29.13 per kilometre, or 14.91 seconds per
100 metres).