Hiroshima 100K is the 95.0km ultra trail at Hiroshima Ultra-Trail by UTMB 2027 (Hiroshima Gate Park, Japan). The race starts on April 10, 2027 at 05:00 AM. It starts in Hiroshima Gate Park. The time limit is 29 h.
Hold a steady pace and save energy for every section.
The course climbs 5600m+. With 59m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 31% of the distance is uphill, 40% downhill and 29% flat. The longest climb runs 6.3km at an average 10.8% grade (675m of vertical). The longest descent runs 14.7km at an average 6.8% grade (1006m of vertical). The steepest climb averages 45.1% over 0.4km. The steepest descent drops at 38.1% over 0.3km. Flat-equivalent effort: 145.2 FlatKM.
Trekking poles are strongly recommended: about 14.5km of the course is steep enough for them to pay off.
Quad damage risk is high (index 54 of 100), with 44% of the load in the first half: 5 critical descents, the last of them run on already damaged legs. Downhill-specific preparation and a controlled early pace pay off here.
On race day, start temperatures have historically ranged from 3°C to 14°C, with around 12°C at the highest point; the chance of precipitation is about 38%. Heavy rain of 10.0mm or more falls on about 15% of days around this date.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Hiroshima 100K.
Other distances of Hiroshima Ultra-Trail by UTMB 2027Hiroshima 50K (49.0km)·Hiroshima 25K (25.0km)
Official websitehiroshima.utmb.world
