第10回 大井東京マラソン

The 10th Ooi Tokyo Summer Marathon is a running event organized as part of the Earth Run Club series and based around Oi Athletics Stadium in Shinagawa, Tokyo. The event uses the stadium area together with Oi Central Park and the surrounding public pedestrian paths, creating an urban park race setting with the athletics venue as its main hub. The source presents the event as a day that can be enjoyed by a wide range of runners, from competitive athletes to parent-child participants, and it supports several participation styles including individual runners, pairs, families, and relay teams. The venue headquarters are located inside the athletics stadium, with access described by nearby rail and bus options. On-course support includes aid stations with cold water, sports drinks, and nutritional supplements, and the event plans medical support with emergency lifesaving staff and nurses on standby. Awards and finisher items are also part of the event experience, with recognition for top overall finishers and age-group or pair placements, while family finishers receive completion medals. The overall character is a community-friendly summer road running event centered on a formal athletics facility and nearby park paths in Tokyo.