A flat seaside fun-run in Ito, Shizuoka: Sun 17 Jan 2027, starting and finishing at Ito Orange Beach with 2 km, 5 km and 10 km courses plus a family category. About 2,500 runners; 15 min walk from JR Ito Station.
Japan's 2026–2027 marathon season runs from the Hokkaido Marathon (Aug 30, 2026) through to the Tokyo Marathon (Mar 7, 2027) and the Nagoya Women's Marathon (Mar 14, 2027). Most big-city races enter by lottery months ahead — but overseas runners can also get in via charity slots and travel-agency tour packages. Below: the full calendar, how to enter from abroad, and which race to pick.