Japan · Niigata
DEEP JAPAN ULTRA
Distance
80 km
Date
June 25, 2026
Entry fee
37,000 JPY
€ / km
€2.45
Deep-mountain ultra: remote ridges, village-to-village grit, and a long Niigata course that rewards mountain resilience and comfort in serious point-to-point terrain.
Elevation and Terrain
Total Meters
4000m
D+/KM
50m/km
For context, the Tor des Géants 330 loop has 73 D+/km.
Avg Uphill Gradient
13.6%
Avg Downhill Gradient
-12.0%
Uphill gradient distribution
Route Profile
Analysed 2026-05-01Terrain breakdown
Climbs
Top climbs
7.3 km · 1076 m gain
starts km 54 · avg 14.8% · max 55.0%
4.0 km · 901 m gain
starts km 19 · avg 22.2% · max 70.1%
6.1 km · 470 m gain
starts km 0 · avg 7.7% · max 47.8%
Top descents
13.7 km · 1214 m drop
starts km 23 · avg -8.9% · max -67.8%
8.3 km · 1084 m drop
starts km 63 · avg -13.0% · max -54.6%
4.1 km · 346 m drop
starts km 6 · avg -8.0% · max -52.8%
Logistics
Nearest airport
Niigata (KIJ)
Notes
Start: ~2–3 hrs by car or train+shuttle to the Uonuma race area / Public transport: workable via Urasa or Koide plus official shuttle options, but timing is less simple than Japan’s bigger city races / Accommodation: limited local lodges and onsen bases make early booking smart, especially if you want to stay close to Irihirose.
