2021 will be the first year backyard to be held in Gunma prefecture.
Majority of the course is on road surface so it is mostly runnable with less technical surface.

This race is one of the BULSS (Back Yard Ultra Last Samurai Standing) races to be held in Japan.
We plan to organize all 47 prefectures in Japan to have prefecture (State) championships in the future.
This year (2021) we plan to organize in 5 prefectures and this is one of them.