The 8 50K ultramarathons in Japan, with each one's climb, cutoff and date. Every race links to its own page, where you can see how it fits the runner you are now.
| Race | Distance | Where | Date | Climb | Cutoff |
|---|---|---|---|---|---|
| Trainic world Ogose-Tokigawa Trail Run 50km | 51.4km | Ogose, Japan | Oct 4, 2026 | 4,593 ft | 11 h |
| SAIOTO COLORS | 53 km | Kitahiroshima, Japan | Nov 8, 2026 | 11,368 ft | 13 h |
| Sakurayama trail | 52km | Fujioka, Japan | Nov 15, 2026 | 8,930 ft | 11 h |
| Kusenbu Quest 50 | 50km | Nakagawa, Japan | Jan 10, 2027 | 9,180 ft | 11 h |
| Ishinomaki Tozan Marathon 55km | 55km | Ishinomaki, Japan | Mar 28, 2027 | 6,798 ft | 8 h |
| Hiroshima Trail | 50km | Hiroshima, Japan | Apr 10, 2027 | 8,406 ft | 13.5 h |
| Tamba 100 Adventure Trail | 50km | Tamba, Japan | May 29, 2027 | 12,362 ft | 24 h |
| Okushinano 100 | 52.4km | Nagano Pref., Japan | Jun 5, 2027 | 7,841 ft | 11 h |