★第58回「お好みマラソン（150分間）」※東温市ダム湖畔コース 2026

The dam-lake shore course shapes this 58th running: water on one side, your own mood on the other. The event follows "Okonomi Marathon" logic, meaning "what you like is best!" and the focus isn't on making the day overly serious. Rather than a set race script, participants have 150 minutes to run as they wish: "as much as you like, in a good mood," or simply, at their own pace. This suits runners who prefer setting their own objectives. The optional "Easier Than Now! Class" offers a unique pre- or side-activity for those looking to improve their movement.