British middle-distance runner Josh Kerr broke the men’s mile world record on Saturday at a Diamond League meeting in London [1, 2].

The achievement marks the first time in nearly three decades that the fastest mile ever recorded has been surpassed. This performance establishes a new benchmark for global athletics and ends one of the longest-standing records in middle-distance running.

Kerr finished the race with a time of 3:42.66 [1]. This result beats the previous world record of 3:43.13 [3], which was set by Hicham El Guerrouj [2].

El Guerrouj established his mark on July 7, 1999 [4]. That record had remained untouched for 27 years [5] before Kerr's performance this week in the U.S. [1, 2].

The event took place during the competitive Diamond League circuit, where Kerr maintained a pace fast enough to secure the world best [6, 7]. The Scottish-born athlete's victory in London represents a significant shift in the historical timeline of the sport — moving the record into a new era of performance.

Officials confirmed the timing during the event, cementing Kerr's place in the record books [1, 3]. The result follows a period of intense competition in the mile, though few athletes had come as close to the 1999 mark as Kerr did on Saturday [2, 5].

Josh Kerr broke the men’s mile world record on Saturday at a Diamond League meeting in London.

The breaking of a 27-year-old record suggests a significant evolution in training, footwear technology, or athlete physiology. Because Hicham El Guerrouj's mark was considered one of the most 'untouchable' in track and field, Kerr's time of 3:42.66 may trigger a new era of aggressive pacing and higher expectations for middle-distance runners globally.