← Back to results
Tokyo
Ultra Marathon
The 11th Tama River Nature Marathon (Tokyo Ultra 100K)
第11回多摩川ネイチャーマラソン（東京ウルトラ100キロ）
Date
Date TBA
Entry Deadline
August 23, 2026
Location
Tokyo
Distance
Ultra Marathon
Entry Fee
—
Time Limit
13h
Capacity
—
Finish Rate
—
Last updatedJune 18, 2026·14 days agoOfficial site checkedJune 18, 2026
AI summary
ULTRAAid stations
StandardThere are water stations every 10 km (water, sports drinks, and nutritional supplements)
Time limit & cutoffs
100 km: 13 hours, 80 km: 10 hours, 60 km: 8 hours, 50 km: 7 hours. There are checkpoints at various locations (e.g., the 40 km turnaround point closes at 12:00).
Start time
100 km: Start between 6:00 and 6:15; 80 km: Start between 7:00 and 7:15; 50 km and 60 km: Start between 7:30 and 7:45. Shotgun start format.
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（4/6）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
0.0
Atmosphere
大会の盛り上がり
N/A
Access
アクセス
3.0
Value for Money
コスパ
N/A
Runner Reviews
REVIEWSNo runner reviews for this race yet.