The 2007
Tokyo Marathon (
Japanese: 東京マラソン 2007) was the inaugural edition of the annual
marathon race in
Tokyo, Japan and was held on Sunday, 18 February. The competition replaced the
Tokyo International Marathon, an elite men-only competition held since 1981. The new competition included a mass race open to the public.
The men's race was won by Kenyan
Daniel Njenga in a time of 2:09:45, while the women's race was won by home athlete
Hitomi Niiya in 2:31:02. The organisers did not invite any elite level women runners to compete at the marathon, but Niiya (a national representative at under-20 level) started the race alongside members of the public for her marathon debut and finished nearly 19 minutes ahead of the opposition.[1] Several older professional female runners in their 40s finished behind Niiya, with
Mari Tanigawa (1991 winner of the
Tokyo International Women's Marathon) finishing as runner-up, 1990s Olympic medalist
Yuko Arimori in fifth, and ultradistance runner
Mami Kudo in ninth.