Kasumigaura’s four marathon waves and fixed checkpoint clocks
The Japanese event outline and the English page agree on the race date and checkpoint clock times. Their elapsed-time labels differ, so plan against the published clock deadlines and confirm any question with the organizer. A later wave does not move those fixed closure times. Include the time needed to cross the start line when assessing your margin.
The marathon uses a lakeside circuit from the Kawaguchi Sports Park area, with the midpoint beyond the Kasumigaura City History Museum. Select the full-marathon map rather than the earlier 10-mile start or the separate 5 km route. Learn the final approach and the checkpoint positions before trying to turn a target finish time into a pacing plan.
The English instructions for overseas residents and foreign nationals describe race-day bib collection at the venue information desk, followed by an email with details at least a week before the race. Check that the instructions match your entry route; domestic collection arrangements may differ. Leave time for collection and reaching the correct wave rather than arriving only for the first gun.
The English page currently gives a registration-opening year that falls after the race itself. Do not use that inconsistent line as a booking deadline: follow the current entry link and organizer confirmation. Visually impaired runners should also check the appropriate division and guide-runner arrangements during entry. Save the final category, wave and bib instructions together, and recheck transport before race morning.
Confirmed race date
Kasumigaura Marathon and International Blind Marathon: April 18, 2027. Verified on October 14, 2026 against the official event information.
Last-known race profile
These details identify the race page; they do not establish the next edition's operations. The previous race date does not establish the next edition. Use the confirmed date above and recheck the final participant instructions before committing to a race-day schedule.