第17回荒川ハーフマラソン&30km 2026

The Arakawa Half Marathon & 30km is a low-cost running event held at Horikiri Mizube Park, near Horikiri Shobuen in Tokyo. The main events are a half marathon and a 30 km race. Shorter 10 km and 5 km runs are also available for men and women. The half marathon begins at 10:00 AM, and the 10 km and 5 km races start at 10:10 AM. The event maintains a low entry fee by omitting certain amenities: there is no luggage storage and no additional portable toilets. However, it prioritizes race timing, providing each runner with a timing tag and an official live results site that displays lap times, lap rankings, finish times, category places, and overall places immediately. Participants can also access their completion certificate online post-race. A practical feature is the pacing system, with pacers scheduled from 4:00/km to 6:00/km in 10-second increments. Special guests are invited to encourage runners, and participants receive a one-month online yoga benefit from YOGAEVENT.jp, featuring over 40 lessons sent via email after the event month.