Ultra Running Hub Trosa, Sweden · Saturday, May 8, 2027
Backyard
Trosa Backyard Ultra
234 days away
not publishedn/a Distance
10 m Climbing
not publishedn/a Grit
We hold no course length for this race — a timed or backyard event is measured by the clock, not the kilometre — so there is no Grit score to give you.
What the course asks
Field size ~136 Mid-sized. Company early, well spread out by halfway.
DUV results for the 2026 edition (34h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, May
Daytime high 15°C
Night low 7°C
Rainfall Mostly dry
Daylight 16 h 17 m of light
Regional 2001-2020 average for May — NASA POWER, grid elevation 30 m. Not a forecast.
The Aid Station
Course-specific beta from the community
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for this trail race with 10 m of ascent.
- Trail Running ShoesCushioning on trail that is still there in the last quarter.
- Race NutritionSelf-supported fuelling between aid stations.
- Hydration VestsFlask capacity without the bounce.
- HeadlampsA 34 h limit puts you out there after dark.
- GPS WatchesBattery life first — an ultra outlasts most full-GPS modes.
Course Notes
65 % road, 25 % trail, 10 % gravel. Round of 6706 m. Mass start every hour.
Similar races
Other trail ultras of the same format.