Biwott won his first major marathon title after coming second in London last year, finishing ahead of compatriot Geoffrey Kamworor in a time of 2 hours, 10min 34 sec.

Kamworor was 14 seconds back while Ethiopia's Lelisa Desisa, a winner of another of the Marathon Majors in Boston this year, was third in 2:12.10.

Keitany, meanwhile, defended the title she won last year to become the first woman to seal back-to-back wins in the race since Britain's world record holder Paula Radcliffe managed it in 2008.

The former World Half-Marathon Champion pulled away at the 21-mile mark to win in 2:24.25, with Ethiopia's Aselefech Mergia coming home in second a further 67 seconds back.

She becomes the eighth woman to win in New York more than once, with Ethiopia claiming another podium place thanks to Tigist Tufa coming third in 2:25.50.

It was also a far more comfortable win for Keitany than her success in 2014, when her three second margin of victory was one of the narrowest in the race's history.

Elsewhere, American Tatyana McFadden set a new course record to win the women's wheelchair race in 1:43.04.

Her success means she has completed a sweep of the four Major wheelchair marathons - London, Boston, Chicago and New York - for the third straight year.

The previous course record of 1:50.24 was set by another American, Amanda McGrory, in 2011.

Swiss athletes came second and third, with Manuela Schar coming home in 1:44.57 and Sandra Graf clocking 1:52.05.

Ernst Van Dyk of South Africa won his second title in the men's race, and his first since 2005.

Josh George of the United States was second in 1:30.55 with third going to Switzerland's Marcel Hug in 1:34.05.

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