Several former Boston winners are among the field of 36 elite runners.
Kimetto notches a course record in cold, windy conditions.
Berlin Marathon winner Aberu Kebede was the women's champion.
The 19-year-old had to work hard for his win.
The fastest marathoner of all-time misses world-record.
She is hoping for better weather than she had two years ago.
She says she's fitter than she was last year.
The top American was 17th-place finisher Tera Moody.
The huge purse has attracted a strong field.
Boston Marathon champion Deriba Merga is the pre-race favorite.