Utah resident Melissa Walker is training for The Great World Race, an extreme endurance challenge that requires participants to complete seven marathons on seven continents in seven consecutive days. Walker was photographed during a training session in Draper, Utah, on Thursday, October 29, 2026, as she builds the physical and mental stamina needed for the grueling global event.
The Great World Race tests athletes with a relentless schedule of 42.2-kilometer runs across diverse climates and terrains, from Antarctica to Africa, with minimal recovery time between continents. Competitors must manage jet lag, temperature extremes, and cumulative fatigue while maintaining marathon pace day after day.
Walker's preparation includes high-mileage weeks, back-to-back long runs, and heat and cold adaptation strategies to simulate the varied conditions she will face. The race format demands not only elite aerobic capacity but also meticulous logistics, nutrition planning, and sleep management during international travel.
