Ultra Running Hub Hyogo Pref., Japan · Sunday, October 4, 2026
Fixed Distance 50 mi
Ashiya Hama Shiokaze Ultra Marathon - 70 km
Race completed
70 km Distance
not publishedn/a Climbing
3.5 est Grit · Challenging
Calculated from 70 km alone — the organiser has not published an elevation profile. Read 3.5 as a floor, not a verdict.
What the course asks
Time limit 8.5 hours
7:17 min/km average. Tight. Sustained running. Long aid-station stops will cost you. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Among the tightest 50 mi cut-offs we track. Measured against 486 races of the same distance. Cut-off calculator →
Field size ~6 Tiny. You will run alone for most of it.
DUV results for the 2025 edition (70km (Partial)) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, October
Daylight 11 h 45 m of light
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 70km (Partial) | 6 | Daigo Onishi · 05:21:46 | Suzuhana Suehiro · 06:14:41 |
| 2024 | 70km | 18 | Katsumasa Kokuchi · 05:50:23 | Kana Kajiura · 06:16:14 |
| 2023 | 70km | 28 | Katsumasa Kokuchi · 06:01:08 | Kana Kajiura · 06:26:08 |
| 2019 | 70km | 39 | Kohei Miyagaki · 05:02:27 | Shima Urabe · 06:54:47 |
| 2018 | 70km | 28 | Takuma Sogabe · 05:12:36 | Shima Urabe · 07:13:13 |
| 2017 | 70km | 32 | Takuma Sogabe · 04:59:02 | Yukiko Kataoka · 07:06:13 |
| 2016 | 70km | 17 | Toyohiko Nakatsuji · 06:30:14 | Yukiko Kataoka · 07:48:06 |
| 2015 | 70km | 42 | Hiroshi Hiraike · 05:17:55 | Yukiko Kataoka · 06:59:21 |
| 2014 | 70km | 53 | Tsutomu Kyouno · 05:36:43 | Toyoko Matsumoto · 07:18:56 |
| 2013 | 70km | 46 | Ryoichi Kuroki · 05:40:07 | Yukiko Kataoka · 06:26:43 |
The field shrank 67% between 2024 (18) and 2025 (6). 50% of the 2025 field were women.
DUV results for the 2025 edition (70km (Partial)) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Course notes
- gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 70 km of trail.
- Trail Running Shoes 70 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition 70 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 70 km, without the bounce.
- GPS Watches Battery life first — a 70 km day outlasts most full-GPS modes.
Similar races
Other 50 mi trail ultras, closest in distance first.