This race has finished.
The next edition is undecided. Please check the official site.
Status updated: June 18, 2026
Date
March 14, 2026
Location
Saitama
Distance
Ultra Marathon
Entry Fee
¥18,000
Time Limit
36h
Capacity
210 runners
Finish Rate
—
Last updatedJune 18, 2026·14 days agoOfficial site checkedJune 18, 2026
AI summary
ULTRAAid stations
Standard(1) 200 km: 10 locations, (2) 230 km: 12 locations, (3) 260 km: 14 locations, (4) 90 km: 4 locations, (5) 115 km: 5 locations. Each aid station is a timing checkpoint. Napping or taking extended breaks at aid stations is not permitted. Standard menu items are available.
Time limit & cutoffs
200 km/230 km/260 km: 36 hours; 90 km: 14 hours; 115 km: 19 hours (time limits are gross times)
Course preview
OptionalThe interview with the 200K winner mentions that the runner “completed the race despite living in Aichi Prefecture, where it was not possible to do a test run.” There is no explicit statement regarding whether test runs are recommended or prohibited.
Start time
(1)(2)(3) 200/230/260 km: Starts at 8:00 a.m. on Saturday, March 14; (4) 90 km: Starts at 7:50 a.m.; (5) Oedo Night 115 km: Starts at 10:00 p.m. (night start). Napping at aid stations is not permitted.
Summary for guidance. Always confirm mandatory gear and rules on the official site. Last verified: June 22, 2026
Access
ACCESSNote: the map shows the approximate area. Check the official site for the exact start/venue.
Score
RATINGSAuto-calculated from market research, official data, and online voicesSome scores unavailable（3/6）Course Appeal
コースの魅力
N/A
Organization & Support
運営・サポート
N/A
Finishability
完走しやすさ
3.5
Atmosphere
大会の盛り上がり
N/A
Access
アクセス
3.0
Value for Money
コスパ
5.0
Runner Reviews
REVIEWSNo runner reviews for this race yet.