Break your personal records by running 6.7 km loop every hour until you cannot run any more… and then some.

There is only 1 winner.

The rest DNF.

Race date: 2026-06-06

Registration closes: 2026-05-25

Place: Germanto ežero tiltas, Telšē, Lithuania.

Start time:08:00

Track length: 6.706 km, one loop.

Elevation gain: ~70 m.

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The Course

The course will go through the territory of the Germantas Landscape Reserve, just a few kilometres from Telšiai city centre. It is one of the most beautiful hidden gems in all of Samogitia region.

Course length is 6.7 km with around 70 meters of elevation gain. The course is 100% forest trails. Day and night loop will be the same.

Click here to view the course on Strava.

Click here to view the location on Google Maps.

A dirt trail running through a green, dense forest with tall trees and sunlight filtering through the leaves. Samogitia Ultra

A narrow wooden boardwalk winding through a green forest with tall trees and dense foliage. Samogitia Ultra

Wooden pathway in a lush green forest with trees and grass. Samogitia Ultra

A dirt road runs through a dense green forest with tall trees and sunlight filtering through the leaves. Samogitia Ultra

A dirt trail winding through a green forest with tall trees and dappled sunlight. Samogitia Ultra

A wooden boardwalk winding through a green forest with sunlight filtering through dense foliage. Samogitia Ultra

A narrow wooden boardwalk trail cuts through a lush green forest with tall trees and abundant foliage, sunlight filtering through the leaves. Samogitia Ultra

A dirt trail in a lush green forest with tall trees and ferns, sunlight filtering through the canopy, and a fallen log on the side of the trail. Samogitia Ultra

What is a backyard?

This is a unique endurance running format created by Lazarus Lake - the same mind behind the legendary Barkley Marathons.

The concept is simple, but brutal: every hour, runners start a new loop measuring 6.706 km (4.167 miles). This distance is no coincidence. Over 24 hours, it adds up to exactly 100 miles (160.9 km), the “Holy Grail” distance for ultrarunners.

Runners must complete each loop within the hour. Any remaining time is used for recovery - eating, resting, or preparing for the next start. If a runner fails to finish the loop in time or doesn’t show up at the starting line, they are eliminated.

The race continues until only one runner remains - the Last Man Standing. That runner is declared the winner.

The first Big Dog's Backyard Ultra took place in 2011 in Tennessee, USA. Since then, the format has spread worldwide, including across the Baltic states.

The current world record belongs to Phil Gore, who completed an astonishing 119 loops (798 km) at the Dead Cow Gully Backyard Ultra in 2025.

Current Lithuanian record belongs to Haroldas Šubertas who completed 64 loops (428.8 km) in March 2026 Capital Backyard Ultra in USA.

Current woman’s Lithuanian record belongs to Julija Šorytė, who completed 54 loops (362 km) at the Banana Slug Backyard Ultra in 2025.

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Important rules & things to remember

Runners will have to run 6.7 km loop every hour on the hour.

Only after running a minimum of 7 loops (46.9 km) a runner will receive an award medal.

Runners will receive a 3, 2 and 1-minute warning before each loop.

A runner must be in the corral to start.

Runners will DNF due to the following:

Failure to start or complete a loop on time.
If runners receive aid on course at any point.

There will be a dedicated base camp where runners will be able to put up their personal tents. Tent space is available only on first-come first-serve basis.

Runners without a personal tent will have space in general big tent within the base camp.

There will be a carpark around 100 meters away from the base camp.

Please read full rules & regulations via link below. Any further questions feel free to contact.

RULES & REGULATIONS