Shigakogen Extreme Trail 2025

Sun, 19 Oct 2025 · Nagano, Japan · 55 km · D+ 2,850 m · 15h time limit

The ~55 km course (about 2,850 m D+) of the Shigakogen Extreme Trail, held in Nagano, with a 15-hour time limit. 400 places. The next edition had not been announced as of 2026-10-27.

The course

2,850 m of climbing over 55 km (52 m per km).

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Enter your ITRA performance index to get an estimated finish time, aid-station splits and cutoff margins. This race has no finisher ITRA data, so it uses the transfer model: your predictions for the 290 races that do have finisher data, scaled by distance and elevation gain (km-effort) — the same calculation as the TRAIL STATUS app. Nothing is saved or sent.

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Overview

Date: Sun, 19 Oct 2025
Start: 05:00
Location: Nagano, Japan
Distance: 55 km
Elevation gain: 2,850 m
Time limit: 15h
ITRA: 50K
Official website: www.nature-scene.net/shiga_ex

Elevation profile

No elevation data yet.

Aid stations and cutoffs

#	Distance	Aid station	Segment	Cutoff
F	55 km	FINISH	55 km	20:0015h

The small figure under each cutoff is the time from the start.

Other races

Shinetsu Five Mountains 100mile 2026Mon, 21 Sep 2026 · Nagano, Japan · 163 km
Shinetsu Five Mountains 110km 2026Tue, 22 Sep 2026 · Nagano, Japan · 112 km
OSJ KOUMI 100 2026Sun, 11 Oct 2026 · Nagano, Japan · 165 km
NOZAWA 65 km 2026Sun, 19 Jul 2026 · Nagano, Japan · 65 km
OKUSHINANO 100 100km 2026Sat, 6 Jun 2026 · Nagano, Japan · 100 km
OSJ ONTAKE100 100K 2026Sun, 19 Jul 2026 · Nagano, Japan · 107 km

From your training log, TRAIL STATUS estimates your finish time, aid-station splits and cutoff margins for this race.

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Race information as of 2026-10-27

Compiled from each race's official information. Details can change, so always check the race's official website for the latest. Spotted a mistake? Please tell us through the contact form.
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