The Tokyo Marathon is an annual marathon running event that takes place in Tokyo, Japan. The race is conducted on the last Sunday of February every year. It is one of the six World Marathon Majors and is also an IAAF Gold Label marathon.
The Tokyo marathon was held for the first time on Feb 18th 2007. But from 1982, two different marathons, the Tokyo International Marathon and Tokyo-New York Friendship International Marathon, were conducted in alternate odd numbered and even numbered years which was combined into a single marathon event.
Dickson Chumba of Kenya won the 2014 race in a record time of 2:05:42. This was the only time a sub 2hrs 6mins was clocked at this event. Helah Kiprop, also from Kenya, holds the women's record at 2:21:27 set during the 2016 race. Masakazu Fujiwara is the only man from Japan to have won the race, but the Japanese women have won the race three times.
The course that was used up until 2016 was decided to be changed from the year 2017 by the Tokyo Marathon Foundation. The change has been made for a better public appeal of Tokyo and also to make the course faster and enable runners to set new records.