The Kenyan broke the world mark at the Berlin Marathon last year.
The race around Central Park will take place June 14.
Past champions will attempt to make history at the annual women’s-only race in Albany, New York.
The two-time runner-up in New York is ready for her Boston debut.
Track specialists Molly Huddle and Sally Kipyego will make their half-marathon debuts on the women's side.
Ethiopian Buzunesh Deba is runner-up for the second time in a row.
The Ethiopians would love to repeat their 1-2 finish from 2011.
A slew of sub-2:30 women have come from far and wide to race in New York on Sunday.
Harsh conditions slow times across the board.