Race Day Information NEW!!!

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Okumusashi Speed Trail Championship

100% runnable trail course near Tokyo, that has NEVER been open for hikers and runners until now! Get you trail PR in 10K, 21K, or a full marathon, in a well-supported local race. Hot spring and barbecue party at the finish line or head back to Tokyo in time for dinner.

Race Organizers

Tokyo Trail Running
NPO Okumusashi Green Resort


Hanno City
Hanno City Council Committee of Education
Municipal Association of Agano
Administrative Center of Agano
Agano Sports Association
Nishikawa Wide Forest Union
Kyukamura Okumusashi
Tairaritsu Orchards
Morita Construction & Greening K.K.
Yamamizu K.K.


Okumusashi Speedway Visitors Center (Kyukitagawasho school)
620 Kitagawa, Hannō-shi, Saitama-ken 357-0201
Google Map

Registration Period

September 28th – November 2nd
* Or until maximum capacity (100 runners)
* Runner under 18 years old are not eligible.

Race Date and Time

November 11th, 2018
09:30 AM: start for full marathon course
10:30 AM: start for half marathon course
04:00 PM: Cutoff time

Entry Fee

Half Marathon (21K) Individual: ¥4,000
Half Marathon (21K) Relay – Team of 2: ¥7,000
Full Marathon (42K) Individual: ¥4,500
Full Marathon (42K) Relay – Team of 2: ¥7,500
Full Marathon (42K) Relay – Team of 4: ¥15,000

Tokyo Trail Running and the race organizers assume no responsibility for individual issues such as injury during the trail run or cancellation due to bad weather or other natural disaster. No fees will be refunded if an individual or team cancels after November 1st. If bad weather or natural disaster causes cancellation of the race, no refund will be made. However, TTR may apply the entry fee to the next event at its own discretion.


Finisher’s & Winner’s Certificate
Running Goods

Half Marathon
Individual, top 3 male and female
Half Marathon Teams, top 3

Full Marathon
Individual, top 3 male and female
Full Marathon Teams, top 3