Kudamatsu Kasadojima Island Trail 30 km 2026
Uses the whole of Kasado Island in Setonaikai National Park, Kudamatsu, Yamaguchi. From Kokumin-shukusha Ojo, the course takes in hills such as Suribachi-yama and Takatsubo-yama, the indented coastline known as 'seven bays, seven capes', a boardwalk over the sea and the island's shipyards.
The course tops out at 254 m (low point 0 m). Only about 30% is gentle (under 5% grade); most of it is climbing or descending. The median finish was about 5 h.
Estimate your finish from your ITRA index
Estimate (no finisher data for this race)
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 205 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.
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
- Sun, 15 Feb 2026
- Start
- 09:00
- Location
- Yamaguchi, Japan
- Distance
- 30 km
- Elevation gain
- 1,660 m
- Time limit
- 7h
- ITRA
- H
- Official website
- kasadojima-islandtrail.com/overview
Elevation profile
Aid stations and cutoffs
| # | Distance | Aid station | Segment | Cutoff |
|---|---|---|---|---|
| 1 | 6 km | Aid 1白浜エイド（往路） | 6 km | Day 1 11:002h |
| 2 | 15 km | Aid 2深浦エイド | 9 km | Day 1 13:004h |
| 3 | 19 km | Aid 3白浜エイド（復路） | 4 km | Day 1 14:005h |
| 4 | 26 km | Aid 4本浦エイド | 7 km | Day 1 15:006h |
| F | 30 km | FINISH | 4 km | Day 1 16:007h |
The small figure under each cutoff is the time from the start. Day 1 is the day of the start.
2026 results
320 finishers. Finish times of those who finished:
- Fastest
- 3h 18m
- Top 10%
- 4h 8m
- Top 25%
- 4h 41m
- Median
- 5h 16m
- Top 75%
- 5h 50m
- Top 90%
- 6h 30m
- Last finisher
- 6h 59m
"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).
- Runnable practice course (28.2 km)
Other races
- Kudamatsu Kasadojima Island Trail 30 km 2027Sun, 7 Feb 2027 · Yamaguchi, Japan · 30 km
- Kudamatsu Kasadojima Island Trail Short 17 km 2026Sun, 15 Feb 2026 · Yamaguchi, Japan · 17 km
- Kudamatsu Kasadojima Island Trail Short 17 km 2027Sun, 7 Feb 2027 · Yamaguchi, Japan · 17 km
- HASETSUNE 30K 2026Sun, 29 Mar 2026 · Tokyo, Japan · 30.2 km
- FunTrails Round Minano 30K 2026Sun, 10 May 2026 · Saitama, Japan · 30 km
- OSJ SHINSHIRO 32K 2026Sun, 22 Mar 2026 · Aichi, Japan · 32 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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