Nakato, Manno, Kagawa Pref, Japan · Sunday, October 25, 2026

Fixed Distance 50 mi

Manno Mountain Madness 2026

6 days to go
80 km Distance
5,600 m Climbing
10.0 Grit · Elite / extreme
34.1255° N, 133.9501° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 70 m / km Vertical. Extreme verticality. This is a technical mountain course with sustained steep grades.
Time limit 17 hours 12:45 min/km average. Comfortable. Sustained running. Long aid-station stops will cost you. More forgiving than 72% of 50 mi races. Measured against 478 races of the same distance. Cut-off calculator →
Field size ~44 Small. Long stretches with nobody in sight.

DUV results for the 2025 edition (80km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, October

Daytime high 20°C
Night low 13°C
Rainfall Showers likely
Daylight 11 h 03 m of light

Regional 2001-2020 average for October — NASA POWER, grid elevation 360 m. Not a forecast.

Results history

Year Race Finishers Men's winner Women's winner
2025 80km 44 Junsuke Mizuno · 11:37:35 Ryoko Goto · 14:16:09
2024 80km 27 Hajime Mamba · 10:44:36 —
2023 80km 47 Kota Nakane · 11:34:53 Kyona Nonaka · 13:18:10
2022 80km 36 Kota Nakane · 10:58:44 Maho Fujisawa · 13:33:44

The field grew 63% between 2024 (27) and 2025 (44). 5% of the 2025 field were women.

DUV results for the 2025 edition (80km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Course notes

  • terrain This is a vertical course. Poles are highly recommended for the sustained climbs.
  • gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.

Gear for this race

Chosen for 80 km of trail with 5,600 m of ascent.

All gear guides →

Overview

Holding an extreme vertical profile in Nakato, Manno, Kagawa Pref, Manno Mountain Madness 2026 packs 5600 meters of elevation gain into an 80-kilometer route. Averaging 70 meters of climb per kilometer across 2 loops of 40 kilometers along the Asan Mountains, the trail race demands severe climbing legs balanced against runnable stretches.

The event gives runners a 17-hour limit, requiring a minimum cutoff pace of 12.8 minutes per kilometer. That standard makes its deadline more generous than 72% of 50mi peers and tighter than 28%, offering extra buffer against the heavy elevation profile.

Having debuted in 2022, the race enters its fifth edition on October 25, 2026, with an entry fee of 17000 Yen. Its 44 finishers in 2025 placed it in a mid-sized tier—bigger than 45% of 50mi fields, but smaller than 53%—where participants navigate technical terrain without overcrowding.

Similar races

Other 50 mi trail ultras, closest in distance first.