The Ethiopian is the pre-race favorite.
He has been a force in the race since its founding five years ago.
He would also like to set a British record.
The Welsh world-record holder ran a blazing 2:08 that year.
The double-Olympic gold medalist learned a lot about his race.
Priscah Jeptoo and Tsegaye Kebede are the newly crowned champions.
Boston One Fund has already raised $10 million in donations.
She had been primed to run well in New York last year.
No athletes have dropped out due to security concerns.
British runner comments about running half of the London Marathon this weekend.