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The longest category of the event, run as a team of two over the full historic Salt Road between Otari Village and Itoigawa City. The route measures 81.58 km with 4,020 m of climbing and the same again of descent, and teams start at 06:00 with 24 hours to reach the finish.
Historic Salt Road trading route between Echigo and Shinano
Mountain paths linking Otari Village and Itoigawa City
Around 4,020 m of climbing and 4,020 m of descent on the 80km pair course
Eight aid stations along the route
Start / Finish
Otari Village, Nagano Prefecture, at the northern end of the historic Salt Road
Otari Village, after returning along the Salt Road from Itoigawa City
Terrain
Route
Getting There
Race Day
What you get
On the day
Before you enter
Other questions
Yes. The event lists both a solo Otari Salt Road 80km and an Otari Salt Road 80km Pair, so you can pick the team entry or the individual entry depending on how you want to run the route.
The course follows an ancient trading road through the mountains that once connected Echigo and Shinano. Expect forest and ridge country on trail, with a large amount of sustained climbing and descending across the full distance rather than flat valley running.
The 80km pair route is a genuine mountain ultra with around 4,020 m of climbing, so it suits runners who already have long mountain days behind them. The pair format does make it more approachable for two runners who want to share the effort and the navigation.
No mandatory kit list is published on the race page, so plan for a long day in the mountains. A pack with enough capacity for the stretches between aid stations, weatherproof layers, a phone, and emergency supplies are sensible for a route of this length.
The race appears in the ITRA listings with a Mountain Level of 6 and a Finisher Level of 300, so finishers can expect it to count towards their ITRA performance index.
Entry fee not listed
Check the race's registration page for pricing.Otari, Japan
Sunday, November 1, 2026
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