Video highlights for visitors in the USA.
Caroline Rotich pulled the big upset in Boston as the successful half marathoner outkicked even money favorite Mare Dibaba for the win after American Desi Davila led for much of the race.
2014 Chicago champ Mare Dibaba leads the field, though she'll be challenged by fellow sub-2:20 woman Buzunesh Deba, who would have set a course record last year if not for drug cheat Rita Jeptoo. World junior record holder Shure Demise Ware and former champs Caroline Kilel and Sharon Cherop will also be on the start line.
The deep field also includes Joyce Chepkirui, Buzunesh Deba and Annie Bersagel.
The pro fields for the 2015 Boston Marathon were announced today and previously announced Americans Meb Keflezighi and Shalane Flanagan will have their hands fulls.
Tirfi Tsegaye won two majors and is world #1 in a year marred by doper Rita Jeptoo.
Mary Keitany (2:18:37 pb) may be a Paula Radcliffe type talent, but she'll have her hands full in NYC in her first marathon in two years. She'll be challenged by former double World Champ Edna Kiplagat, and NYC champs Jelena Prokopcuka and Firehiwot Dado, plus 2013 runner-up Buzunesh Deba. Desiree Linden leads the American field, which also includes 41-year-old Deena Kastor (shooting for 2:25) and Kara Goucher, in her first marathon since April 2013.
Defending champ Priscah Jeptoo faces runner up Buzunesh Deba as well as Edna Kiplagat and Mary Keitany in her return to the marathon.
They'll face heavy competition though from 1:06 half-marathoner Lucy Kabuu and Boston Marathon runner-up Buzunesh Deba.