第101回・赤羽トライアル（5km/10km/15km/HALF/30km/フルの部） 2026

From Akabane Station or Akabane-Iwabuchi Station, proceed to the Arakawa Riverbed for a straightforward local trial on a genuinely "flat course!" This is the 101st running, and the atmosphere is more club-meet than large production, with "welcome for fun run participants!" integrated into the event. The route follows a loop along the riverbed, making it a course where you can find your rhythm without concern for steep climbs or complex turns. Anticipate a mixed, relaxed field rather than solely competitive racers, along with some thoughtful runner-friendly additions: a "stamp card present," "collect 3, 1 race free," and the adjacent bathhouse "Otamayu" is open for participants afterward.