Shiroishi City, Miyagi Pref., Japan · Sunday, October 25, 2026
Fixed Distance 50 mi
Shiroishi Minami Zao Ultra Excursion 63.3km
52 days away
63.3 km Distance
not publishedn/a Climbing
3.2 est Grit · Challenging
Calculated from 63.3 km alone — the organiser has not published an elevation profile. Read 3.2 as a floor, not a verdict.
What the course asks
Field size ~8 Tiny. You will run alone for most of it.
DUV results for the 2025 edition (63.3km) — 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 18°C
Night low 9°C
Rainfall Showers likely
Daylight 10 h 53 m of light
Regional 2001-2020 average for October — NASA POWER, grid elevation 302 m. Not a forecast.
The Aid Station
Course-specific beta from the community
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 63 km of trail.
- Trail Running Shoes 63 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition 63 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 63 km, without the bounce.
- GPS Watches Battery life first — a 63 km day outlasts most full-GPS modes.
Similar races
Other 50 mi trail ultras, closest in distance first.