Britain's Chris Thompson was able to hang with him for most of the race.
The race-day conditions were brutal.
He prescribes three basic principles.
Tsegaye Kebede is at the top of an extremely talented field.
Kiptoo, Jeptoo come away victorious.
Chebet's time was the fastest marathon of the year.
Besides training for marathons, he's a businessman and a family man as well.
He was paid $100,000 to endorse a famous brand of alcohol.
He is using a combination of technology and old-fashioned training.
One member of the team comes from the hardest-hit part of Japan.