Backyard ultra races

Repeated laps start at fixed intervals. Compare lap distance, ascent and start interval; lap limits differ from ordinary finish probabilities.

Recorded editions, newest dates first. Includes past, tentative and cancelled editions; this is not a list of races open for entry.

• BULSS Kyoto (Backyard Ultra Last Samurai Standing) 20272027-03-20 · Kyoto, Japan · Backyard
• BULSS Kanagawa (Backyard Ultra Last Samurai Standing) 20272027-02-20 · Kanagawa, Japan · Backyard
• BULSS Tokyo (Backyard Ultra Last Samurai Standing) 20262026-11-21 · Tokyo, Japan · Backyard
• BULSS Ibaraki (Backyard Ultra Last Samurai Standing) 20262026-11-07 · Ibaraki, Japan · Backyard
• BULSS Niigata (Backyard Ultra Last Samurai Standing) 20262026-11-01 · Niigata, Japan · Backyard
• BULSS Hokkaido (Backyard Ultra Last Samurai Standing) 20262026-10-10 · Hokkaido, Japan · Backyard
• BULSS Kanagawa (Backyard Ultra Last Samurai Standing) 20262026-02-21 · Kanagawa, Japan · Backyard

Compiled from each race's official information. Details can change, so always check the race's official website for the latest. Spotted a mistake? Please tell us through the contact form.
TRAIL STATUS · FAQ · Privacy policy