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TrailJapanFukushima Prefecture

OSJ ADATARAYAMA TRAIL 2026

05.09 – 06.09.2026Nihonmatsu (Japan)
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3’70512’156 m D+ ft D+

48 km29.8 miLONGlongest of 3 courses

At a glance

OSJ ADATARAYAMA TRAIL 2026 took place from Saturday 5 to Sunday 6 September 2026 in Nihonmatsu (Fukushima Prefecture, Japan). Three distances to choose from: 12, 27 and 48 km.

Longest course: LONG, 48 km with 3’705 m D+ (77 m per km: very steep terrain).

The 2027 edition is expected on Saturday 4 September 2027, date to be confirmed by the organiser. On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.

A trail race taking place on Mount Adatara, a famous mountain in Tohoku. The event is held over two days, with 14 km races on Saturday and 30 km and 50 km races on Sunday. Participants can enjoy the…
From the organiser

3 courses

  1. 12km7.5mi

    747 m D+2’451 ft D+

    avg 6%

    SHORT
    No index

  2. 27km16.8mi

    1’970 m D+6’463 ft D+

    avg 7%

    MIDDLE
    ITRA 2

  3. 48km29.8mi

    3’705 m D+12’156 ft D+

    avg 8%

    LONG
    ITRA 3

GPX trace not yet published.

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Pacing, aid stations and fueling timed to your effort on OSJ ADATARAYAMA TRAIL, in one roadbook.

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Start

Nihonmatsu (Japan)

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