Ecuadorian Runner Breaks Treadmill 'Everesting' Record

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Professional runner and mountaineer Tyler Andrews recently visited Boulder, Colorado to climb the height of Mount Everest on a treadmill, crushing the previous record by nearly 40 minutes. Andrews, who has attempted to summit Everest five times, will make another attempt to reach the world's highest peak in record time this May, this time taking the north route from Tibet rather than the more crowded south route through Nepal.

Why it matters

Andrews' treadmill 'Everesting' feat highlights his dedication to pushing the limits of human endurance, both on stationary equipment and on the world's highest mountains. His previous attempts and record-setting efforts on Everest have drawn attention to the challenges of climbing the iconic peak, especially without supplemental oxygen, and the importance of meticulous preparation for tackling such a formidable challenge.

The details

Andrews spent over 8 hours on a treadmill at a 20% grade, climbing the equivalent of 29,032 feet - the height of Mount Everest. He started at 3 mph and eventually increased his pace to 4 mph, noting the mechanical fatigue from landing on his foot in the same spot tens of thousands of times. Two days before his attempt, Boulder was hit by 100+ mph winds that knocked out power, but Andrews and his team had a backup plan to power the treadmill from an electric vehicle if needed.

• In late December 2025, Tyler Andrews visited Boulder, Colorado to attempt the 'Everesting' record on a treadmill.
• Andrews crushed the previous treadmill 'Everesting' record by nearly 40 minutes.

What they’re saying

What’s next

In May 2026, Tyler Andrews will make another attempt to summit Mount Everest in record time, this time taking the less crowded north route from Tibet rather than the south route through Nepal that he has used previously.