Beyond the hills

For 45 weeks a year, Geoffrey Mutai devotes himself to marathon training in the high-altitude hills of Kapng’etuny, Kenya. He runs 110-125 miles per week with speed workouts conducted at a 4:50-mile pace. He coaches himself and leads a group of elite Kenyans who provide daily competition. He spends long stretches away from his family home in Eldoret, Kenya.