The historic Innai Ishibashi Marathon will be held on Sunday, March 15, 2026, starting and finishing at the Heisei-Reiwa no Mori Sports Park Athletics Stadium in Innai-cho, Usa City.

　This time, we will be welcoming members of the Aoyama Gakuin University Track and Field Club, famous for its student relay races, as guest runners, and we hope you will enjoy the event together.

　Therefore, we are currently recruiting participants.

A variety of events will be held, from half marathons and 5km courses to 2km and 3km cross country and walking courses, and there are events available for people of all ages and genders, from elementary school students to seniors.

For details on the events and other details, please see the website for the tournament application guidelines below.

Please feel free to join us. (Application deadline is Friday, February 6, 2026.)

You can also apply through the following website (an entry fee applies):

or sending us a message on