Mt.FUJI 100 ASUMI40k 2026
A shortened version of KAI70k introduced in 2025. From Fujiyoshida it crosses Oshikusayama, traverses the flanks below Shakushiyama to join the main course, refuels at the Lake Asumi aid station, then climbs Shimoyama and Tenjoyama back to the GX Stadium. Named after the Asumi district.
The course tops out at 1,321 m (low point 683 m). There are 2 big climbs: 300 m around 9–12 km; 637 m around 24–28 km. About 40% of the distance is gentle (under 5% grade). In 2026, 98% of starters finished. The median finish was about 6 h.
Predict your finish from your ITRA index
Enter your ITRA performance index to get your finish time, aid-station splits and cutoff margins from the results of 73 finishers of this race — the same model as the TRAIL STATUS app. Nothing is saved or sent.
The app adds predictions from your training log (Strava), race-day pacing and more. Free, no sign-up.
Predict in detail from my Strava trainingOverview
- Date
- Sat, 25 Apr 2026
- Start
- 12:00
- Location
- Yamanashi, Japan
- Distance
- 38.5 km
- Elevation gain
- 1,481 m
- Time limit
- 9h 30m
- ITRA
- M · 2 points
- Official website
- mtfuji100.com/about/information
Elevation profile
Aid stations and cutoffs
| # | Distance | Aid station | Segment | Cutoff |
|---|---|---|---|---|
| 1 | 19.7 km | Aid 1A1 富士吉田 | 19.7 km | Day 1 16:004h |
| F | 38.5 km | FinishFINISH 富士山GXスタジアム | 18.8 km | Day 1 21:309h 30m |
The small figure under each cutoff is the time from the start. Day 1 is the day of the start.
2026 results
917 starters, 897 finishers (97.8% finish rate). Finish times of those who finished:
- Fastest
- 2h 58m
- Top 10%
- 4h 37m
- Top 25%
- 5h 30m
- Median
- 6h 25m
- Top 75%
- 7h 21m
- Top 90%
- 8h 4m
- Last finisher
- 9h 14m
"Top 25%" means one in four finishers had crossed the line by this time.
Years with a different course or different cutoffs are not directly comparable.
Practice courses
See the course on the Runnable map ↗
Runnable has practice courses on this race's trails, split into sections to run and sections to walk (pages in Japanese).
- Mt.FUJI 100 ASUMI40k (39.6 km)
Other races
- Mt.FUJI 100 KAI70k 2026Sat, 25 Apr 2026 · Yamanashi, Japan · 68.6 km
- Mt.FUJI 100 KAI70k 2027Sat, 24 Apr 2027 · Yamanashi, Japan · 67.9 km
- Mt.FUJI 100 ASUMI40k 2027Sat, 24 Apr 2027 · Yamanashi, Japan · 38.5 km
- Mt. Fuji Mountain Race 15 km 2026Fri, 24 Jul 2026 · Yamanashi, Japan · 15 km
- Takeda no Mori 30 km 2026Sun, 13 Dec 2026 · Yamanashi, Japan · 30 km
- Klesha 108 108 km 2026Sun, 8 Nov 2026 · Yamanashi, Japan · 108 km
From your training log, TRAIL STATUS estimates your finish time, aid-station splits and cutoff margins for this race.
Predict my raceCompiled 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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