“This has been the greatest day of my running life,” Makau said. “When I woke up, my body didn’t feel very good. As the race went on, I felt better.” At 15.5 miles, he said: “I felt I could break the world record. It’s a great thing to beat Haile, one of my heroes.” -NY Times
Wikipedia has a nice summary of Makau's running career, which includes a 2:04:48 at Rotterdam in 2010, a sub 59 min half marathon and 3rd at London last year.