The Itabashi City Marathon (ζΏζ©Cityγγ©γ½γ³) is a major spring road race held along the banks of the Arakawa River in Itabashi City, Tokyo, Japan. Featuring a fast, exceptionally flat course and a generous seven-hour time limit, the race has developed a reputation as one of Tokyoβs most approachable full marathons for first-timers while still offering experienced runners an excellent opportunity to chase a personal best.
The marathon starts and finishes at a special event venue on the Arakawa riverbank near Toda Bridge in Itabashi and follows an out-and-back route alongside the river. With very little elevation change, runners can settle into a consistent rhythm without the significant climbing found at many other Japanese marathons. The full 42.195-kilometre course is officially certified by both the Japan Association of Athletics Federations (JAAF) and World Athletics, making performances eligible as recognized road-race results.
One of the defining characteristics of the Itabashi City Marathon is its combination of a serious racing environment with accessibility for recreational runners. Approximately 10,000 runners can enter the marathon, yet the seven-hour cutoff provides ample time for runners attempting the distance for the first time. Organizers also provide an extensive group of pace runners, with target finish times ranging from approximately 2:50 through 7:00, allowing runners across a broad range of abilities to find support for their goal pace.
