静岡県　第5回　IDATENチャレンジ　 水無月のハーフマラソンin浜名湖ガーデンパーク 2026

Hamanako Garden Park is the whole setting here: a flat loop on the cycling course, run in the stripped-down spirit of the 5th “IDATEN Challenge.” It is friendly to beginners, but not dressed up; this is a low-cost, practical race where you do your running and keep your head in the game. The course should feel straightforward underfoot, with repeated laps and no real climbing to think about. The big quirk is that there is no automatic timing, so laps and distance are self-managed; there are no finish certificates, awards, or posted results, though pacers are listed. The take-home is very runner-specific: “size-selectable domestic IDATEN socks” and an “energy gel included.”