American ultrarunner Tyler Andrews broke the Mount Everest speed-ascent record by climbing from Base Camp to the summit in under 10 hours [1].

The achievement marks the first time in 23 years that the record was surpassed [4]. It demonstrates the evolving limits of human endurance and high-altitude athletic performance on the world's highest peak.

Andrews, a 36-year-old athlete from Concord, Massachusetts, completed the ascent in nine hours, 55 minutes, and 43 seconds [1, 2]. He began his push from Base Camp at 7:11 p.m. on May 27, 2024 [1, 3]. He reached the South Summit at 4 a.m. on May 28, 2024 [2, 3].

The feat followed a grueling period of preparation. Andrews made seven attempts over two years to achieve the goal [2]. His objective was to fulfill a personal ambition of summiting the mountain faster than any previous climber [1, 5].

The previous record had remained untouched since 2001 [4]. Climbing from Base Camp to the summit in a single push requires navigating extreme oxygen deprivation and volatile weather, conditions that typically necessitate several days of acclimatization and staged camps.

Andrews focused on the route from the South Base Camp to the main summit [1, 2]. By bypassing the traditional slow-climb method, he reduced the time spent in the "death zone," where oxygen levels are insufficient to sustain human life indefinitely.

Tyler Andrews completed the ascent in nine hours, 55 minutes, and 43 seconds.

This record-breaking ascent highlights a shift toward 'fast-and-light' mountaineering, where athletes prioritize speed to minimize exposure to extreme altitudes. By breaking a record that stood since 2001, Andrews suggests that modern endurance training and physiological preparation can significantly compress the timeline of traditional Himalayan expeditions.