第112回 季節の荒川ハーフマラソン 2026

The 112th Seasonal Arakawa Half Marathon is a low-cost running event held at Horikiri Mizube Park in Tokyo, near Horikiri Shobuen. The primary race is a half marathon beginning at 10:00 AM. Ten minutes later, 10 km and 5 km races commence, allowing runners not yet ready for the half marathon distance to participate in the same event atmosphere. The organizer maintains lower entry fees than many races, yet provides runners with chip timing, live online results, lap times, finish times, rankings, and web completion certificates. Numerous pacers are available, with planned groups targeting paces from 4:00 per kilometer to 6:00 per kilometer in 10-second increments, beneficial for those aiming for a specific pace. Guest supporters and an MC encourage runners, who also receive a one-month YOGAEVENT.jp online yoga benefit featuring approximately 40 lessons. The trade-off for the lower cost is practical: there is no luggage storage and no additional portable toilets, as these services are omitted to keep the price down.