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Running races in Tokyo, Japan

2 marathons and 1 half marathon in Tokyo.

The next one is the Tokyo New Year Half Marathon on 10 January 2027.

The flattest marathon is the Itabashi City Marathon (20 m of climbing); the hilliest is the Tokyo Marathon (45 m).

For cool racing conditions, the Tokyo Marathon usually starts around 8°C.

The biggest field is at the Tokyo Marathon, with about 37,000 finishers.

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