Frequently asked
How many trail races are there in Gunma Prefecture in 2026?
We list 1 upcoming trail and ultra races in Gunma Prefecture, Japan, ranging from 77–138 km.
What is the toughest trail race in Gunma Prefecture?
The biggest climb on our list is 10,180 m of elevation gain — see the full ranking below and filter by difficulty.
More trail races in Japan
Fukui Prefecture 1 races → Gifu Prefecture 1 races → Hokkaido Region 4 races → Hyogo Prefecture 1 races → Ibaraki Prefecture 1 races → Ishikawa Prefecture 1 races → Iwate Prefecture 1 races → Kyoto Prefecture 1 races → Mie Prefecture 1 races → Nagano Prefecture 2 races → Nara Prefecture 1 races → Niigata Prefecture 2 races → Saitama Prefecture 1 races → Shizuoka Prefecture 1 races → Tokyo 1 races → Toyama Prefecture 1 races → Yamanashi 1 races → Yamanashi Prefecture 3 races →
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