Hiroshima Ultra-Trail by UTMB

Hiroshima Ultra-Trail by UTMB joins the World Series in April 2027 with its first edition, built on the Hiroshima Wangan Trail, a 293.8 km loop around the city. The 100K starts at Hiroshima Gate Park at 5 a.m. on the Saturday and follows the Ota River out through the edge of the city before it reaches the trail. It passes a shrine carved into the rock of a sacred waterfall, climbs to almost 900 m on Mt. Shiraki, and keeps dipping and climbing to its hardest section on Mt. Abu.

The finish comes back along the Peace Line in the shadow of the A-Bomb Dome. The race covers 95 km with 5,600 m of climbing and a 29-hour limit.

Starts go in waves between 5:00 and 5:30 a.m. The race states a 29-hour limit and prints the last finish two ways: 11 a.m. Sunday in its race details, and 10:30 a.m. on its time chart and in its event schedule. The weekend's 50K is 49 km on the race page, and its 25K is shorter again, so neither is an ultra here. An earlier event, Hiroshima Trail, ran a 109.5 km course on April 11, 2026 under the same UTMB race number.

Entry for 2027 opened on August 18, 2026 with 48 hours of priority for UTMB Index holders, then to everyone on August 20, first come, first served, and the 100K is sold out with a waitlist form on the race's homepage. A runner who withdraws gets 40% back until October 9, 2026 and 20% until January 9, 2027. Entries can be transferred to another runner until January 31, 2027 for a 5,000 yen fee.