Don't think, run!

Okumusashi Speedway – an exclusive course for runners only – is open again for your challenge!

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.

Check the updates about the race