Distance
Start Time
Terrain
Difficulty
Max Runners
The Trosa Ultra Backyard is a backyard-style ultra running event held in Trosa, Sweden. Participants run a 7 km loop each hour until only one runner remains. The race takes place on 1 May 2027.
Scenic loop course through Trosa surroundings
Easy and flat course along the Trosaån river
Start / Finish
Västra hamnplan, Trosa
Västra hamnplan, Trosa
Terrain
Route
Race Day
What you get
Finisher medal
Race photos
Food after the finish
Silikonmugg from Umara
Selfie-corner
Shower and sauna facilities
On the day
Marshals on course
Water on course
Before you enter
Other questions
A backyard ultra is a last-person-standing format where participants run a set loop (usually 4.167 miles/6.7 km) every hour until only one runner remains. The Trosa Ultra Backyard uses a 7 km loop.
The Mini-Tub is a shorter version of the backyard format, with a 7 km loop instead of the standard 4.167 miles. It allows more runners to participate and still provides a challenging endurance event.
The course is easy and flat, running along the Trosaån river through central Trosa. It is well-marked and suitable for all levels.
Entry fee not listed
Check the race's registration page for pricing.Trosa, Sweden
Saturday, May 1, 2027
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