THE CHALLENGE RACE SUB3.5 in 2025

Entry platform

e-moshicom, Lawson DO Sports, or Sports Entry (Japanese platforms), or the official website form

What you need

Participants must be 18 or older. Bib pickup is on race day only — no postal delivery. Timing chip must be returned at the finish or a 10,000 yen fee is charged.

Payment

Entry fee is 13,200 yen (tax included). Payment method not explicitly stated but processed via the listed entry platforms.

Bib pickup

On-site only on race day (8:00–9:00). No advance postal delivery of bibs. Only the participant, a guardian, or a group representative may collect the bib.

Entry period

Entry is open via the official site and partner platforms until one week before the race. Capacity is 200 runners (first-come, first-served).

On race day

Pacers are provided for 3:20, 3:25, 3:28, and 3:30 finish times. Aid stations every ~3.3 km offer water (Amino Vital Gold) and energy gels. Medical/first-aid support is on-site; ambulance transfer arranged if needed.

Notes

Bib pickup is in-person only on race day with no postal option, making this race effectively inaccessible to overseas runners who cannot guarantee same-day arrival. All entry platforms are Japanese-language services. The race is JAAF-certified and held on a flat 10 km loop course along the Arakawa riverbank in Tokyo.