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Michelle Khare Conquers 'Hardest Challenge': 7 Marathons Across Globe
18 Apr
Summary
- Khare completed seven marathons on seven continents in just seven days.
- Her training involved extensive physiological testing at a performance center.
- She adapted her gear strategy for swelling feet and extreme fatigue.

YouTuber Michelle Khare has completed The Great World Race, a demanding challenge where she ran seven marathons on seven continents in just seven days. This endeavor, spanning from Antarctica to Miami, is described by Khare as her hardest challenge yet.
Her preparation involved seven months of intense training, including physiological testing at the Red Bull Athlete Performance Center to map her endurance capacity. This data informed a personalized training plan developed with coach Gareth Thomas.
Khare and her team meticulously planned for the unpredictable conditions. Strategies included packing multiple pairs of shoes in varying sizes to accommodate foot swelling caused by climate changes and fatigue.
She noted the race's intense, unpredictable start, with little time between landing and commencing a marathon. The experience taught Khare that personal limits are often self-imposed and that she has 'so much more to give' in life.
A three-part series documenting her journey premieres on YouTube on April 18, 2026, at 7 p.m. PT, marking the first full-length documentation of the event.