Tokyo Marathon
Race Day Weather
Cool start — fast day potential, chance of rain
A cool 45°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Light winds shouldn't be a major factor for pacing. There's a chance of rain, so have a backup gear plan ready. Moderate humidity at 66% is worth noting for effort level, especially in later miles.
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Race Info
The Tokyo Marathon starts at the Tokyo Metropolitan Government Building in Shinjuku and finishes at Tokyo Station, passing the Kaminarimon Gate in Asakusa on a mostly flat course. Benson Kipruto set the men's course record of 2:02:16 in 2024 and Brigid Kosgei set the women's course record of 2:14:29 in 2026. It's one of the seven Abbott World Marathon Majors and a World Athletics Platinum Label race, held on the first Sunday of March. It is Japan's largest marathon, with a 40,000-runner field filled by lottery.
