BOSTON (AP) -- Last year's Boston Marathon champions have committed to defending their crowns in 2012.
Race officials announced Thursday that men's champion Geoffrey Mutai and women's winner Caroline Kilel, both of Kenya, have committed to run the 116th Boston Marathon on April 16.
Mutai's time of 2 hours, 3 minutes, 2 seconds was the fastest marathon time on record, but is not considered a world record. IAAF and USA Track and Field rules say the Boston course is ineligible for world or American records because it is too straight and too downhill.
Kilel won in 2:22.36, two seconds ahead of American Desiree Davila. Kilel said she decided to come back because of last year's winning experience.