Ultra Running Hub Hyogo Pref., Japan · Sunday, October 4, 2026
Fixed Distance 50K
Ashiya Hama Shiokaze Ultra Marathon - 50 km
Race completed
50 km Distance
not publishedn/a Climbing
2.5 est Grit · Entry level
Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.
What the course asks
Time limit 7.5 hours
9:00 min/km average. Tight. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Among the tightest 50K cut-offs we track. Measured against 1087 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 (50km (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 | 50km (Partial) | 6 | Go Yoshimasu · 03:38:21 | Narumi Kamogawa · 03:57:58 |
| 2024 | 50km | 22 | Takuya Harada · 03:39:58 | Keiko Nakahara · 05:33:50 |
| 2023 | 50km | 30 | Tatsuo Yoshida · 03:47:55 | Yoko Nakamura · 04:36:01 |
| 2019 | 50km | 51 | Tatsuo Yoshida · 03:37:35 | Akirako Kataoka · 04:18:57 |
| 2018 | 50km | 30 | Kazuki Maruyama · 03:48:33 | Akirako Kataoka · 03:56:03 |
| 2017 | 50km | 47 | Masashi Miyamoto · 03:24:24 | Akirako Kataoka · 04:01:40 |
| 2016 | 50km | 33 | Kenji Horigami · 03:43:11 | Akirako Kataoka · 04:10:35 |
| 2015 | 50km | 50 | Masashi Miyamoto · 03:18:41 | Akirako Kataoka · 03:58:33 |
| 2014 | 50km | 60 | Hiroshi Hiraike · 03:20:45 | Akirako Kataoka · 04:04:06 |
| 2013 | 50km | 66 | Akira Nakazawa · 03:23:49 | Minako Inimura · 04:18:39 |
The field shrank 73% between 2024 (22) and 2025 (6). 50% of the 2025 field were women.
DUV results for the 2025 edition (50km (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 50 km of trail.
- Trail Running Shoes 50 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition 50 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 50 km, without the bounce.
- GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.
Similar races
Other 50K trail ultras, closest in distance first.