2026 Forest Park Winter Marathon
December 5, 2026
Held in the National Musashi Kyuryo Forest Park, this marathon takes place on a scenic, challenging course surrounded by lush nature. With steep slopes reaching up to 27%, it's a popular training ground for serious athletes. Participants run loops of 5 km, making it a suitable event both for experienced runners aiming for new personal bests and for beginners seeking practice. Official timekeeping is provided, so those interested in tracking their performance are welcome to join.
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