Distances: Marathon (42.195 km)
Opening: 2026-04-16 · time unknown
Closing: 2026-05-18 · time unknown
Okayama Marathon is a running event in Okayama, Japan, featuring a full marathon and a recreational 5.6 km Fun Run. The marathon route follows city streets, passing near Okayama Castle and Kōrakuen Garden and along the Asahi River. Both races start in front of Shigeto Arena Okayama and finish at JFE Harenokuni Stadium within the same sports complex.
5K
Nov 8, 202608:45Estimated from typical weather around this date — this race has no real race-day history at its new date yet (these are not days anyone actually ran).
2025
2024
2023
Timing weights apply to climbs, not turns. Elevation totals use the smoothed profile used by Index.
C = min(100, (mean raw weather burden / 150) × distance exposure factor × 100). Weather is averaged by local race hour across three full years.
Touch the route or chart to select a point.
Total elevation gain
≈ 56 m
Total elevation loss
≈ 58 m
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Nearest airport
Okayama Momotaro AirportOKJ
Hiroshima AirportHIJ
