How far is the Larmer Tree Marathon, 20 Miler, Half & 10km?

The Larmer Tree Marathon, 20 Miler, Half & 10km offers 4 distances: 10km (6.2 miles), Half Marathon (21.1 km / 13.1 miles), 20 Miles (32.2 km), Marathon (42.2 km / 26.2 miles).

How much climbing is in the Larmer Tree Marathon, 20 Miler, Half & 10km?

The 10km has 176 m of ascent. The Half Marathon has 400 m of ascent. The 20 Miles has 620 m of ascent. The Marathon has 826 m of ascent.

How hard is the Larmer Tree Marathon, 20 Miler, Half & 10km?

10km: Moderate. Half Marathon: Hard. 20 Miles: Hard. Marathon: Very Hard. TRP grades come from distance and climb measured off the course file, not from the organiser.

Is the Larmer Tree Marathon, 20 Miler, Half & 10km course marked?

Yes, the course is marked. Navigation skills are not required.

Can I download the Larmer Tree Marathon, 20 Miler, Half & 10km route?

Yes. The GPX for each distance is free to download here, with no sign-up, the same as every route on Trail Running Planet.

Relish Running Races Larmer Tree Marathon, 20 Miler, Half & 10km

Larmer Tree Gardens, Tollard Royal, SalisburySun, 7 Mar 2027

Estate trail races from Larmer Tree Gardens in Cranborne Chase

Distance	Ascent	Per km
42.2 km Marathon	826 m	19 m
20 Miles	620 m	19 m
21.1 km Half Marathon	400 m	19 m
10km	176 m	17 m

woodlandMarked course

Nobody has reviewed this one yet

No reviews of the Larmer Tree Marathon, 20 Miler, Half & 10km, and nothing on what people wore. Both are things no organiser publishes and every runner wants before they enter — how it actually went, and what was on your feet.

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MODERATE

TRP grade · E2

Start time not confirmed yet — check with the organiser.

Download GPXFree, no sign-up.

This file is from a previous running and the course may have changed since. If you are navigating with it, get the current version from Relish Running Races first.

What you’re in for

Trail races on the private Rushmore Estate in Cranborne Chase, starting and finishing at Larmer Tree Gardens near Tollard Royal. The routes run through chalk valleys, old hunting woodland and tree-lined avenues, with elevated ridges and around 20m of climb per kilometre. Ground is a mix of grassland, woodland track and estate roads. The half is one big lap, the 20 miler adds the 10km loop and the marathon is two half laps. Marathon runners must start lap two within three hours, and the 20 miler has a four-hour limit on its big lap. There is a canicross 10km. Parking is a paid pass.

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How to enter

Sun, 7 Mar 2027 · Not open yet

No entry link yet. Check Relish Running Races’s site ↗

Add to your calendar · as an all-day entry, until the start time is confirmed

Common questions

: The Larmer Tree Marathon, 20 Miler, Half & 10km offers 4 distances: 10km (6.2 miles), Half Marathon (21.1 km / 13.1 miles), 20 Miles (32.2 km), Marathon (42.2 km / 26.2 miles).
: The 10km has 176 m of ascent. The Half Marathon has 400 m of ascent. The 20 Miles has 620 m of ascent. The Marathon has 826 m of ascent.
: 10km: Moderate. Half Marathon: Hard. 20 Miles: Hard. Marathon: Very Hard. TRP grades come from distance and climb measured off the course file, not from the organiser.
: Yes, the course is marked. Navigation skills are not required.
: We don't hold a compulsory kit list for the Larmer Tree Marathon, 20 Miler, Half & 10km. Relish Running Races confirm mandatory kit in their race information, usually in the final instructions.
: We don't hold published time limits for the Larmer Tree Marathon, 20 Miler, Half & 10km. If Relish Running Races set cut-offs, they'll be in the race information.
: We don't hold a checkpoint list for the Larmer Tree Marathon, 20 Miler, Half & 10km. What's on the table varies a lot between races, so check the Relish Running Races race information rather than turning up expecting food.
: Yes. The GPX for each distance is free to download here, with no sign-up, the same as every route on Trail Running Planet.
: Sun, 7 Mar 2027. Not open yet.