How far is the Anglesey Trail Half Marathon & 10K?

The Anglesey Trail Half Marathon & 10K offers 2 distances: 10K (6.2 miles), Half Marathon (21.1 km / 13.1 miles).

How much climbing is in the Anglesey Trail Half Marathon & 10K?

The 10K has 52 m of ascent. The Half Marathon has 96 m of ascent.

How hard is the Anglesey Trail Half Marathon & 10K?

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

Is the Anglesey Trail Half Marathon & 10K course marked?

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

Always Aim High Events Anglesey Trail Half Marathon & 10K

Newborough Forest, AngleseySun, 1 Nov 2026

Ten kilometres or a half marathon through Newborough Forest and the dunes on Anglesey.

Distance	Ascent	Per km
21.1 km Half Marathon	96 m	5 m
10K	52 m	5 m

forestcoastalMarked course

Nobody has reviewed this one yet

No reviews of the Anglesey Trail Half Marathon & 10K, 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.

Ran it? Write the first review

Running it soon? Connect Strava and we will ask you about it the day you finish, so you do not have to remember to come back.

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MODERATE

TRP grade · E2·T2

Start time not confirmed yet — check with the organiser.

Partner · affiliate policy

Train for it: routes near the start

Routes starting within 20 km of Newborough Forest, Anglesey, nearest first. Each one has a free GPX file and a TRP grade, so you can rehearse the ground before race day.

EXPERT

Snowdon, Grib Goch, Glyder Fawr, Y Garn & Elidir Fawr from Llanberis Trail Running Route

29.1km · 2,306m climb · Loop · 16km away

Crib Goch is one of the most exposed ridges in Britain, and this route puts it in the middle of a big mountain day rather than as the whole objective, so you get the scramble and a proper crossing into the Glyderau either side of it.

Checked Jul 2026

VERY HARD

Yr Wyddfa via Llanberis Path

16.2km · 959m climb · Out & back · 16km away

It's the most runnable line to the summit of Yr Wyddfa, following the rack railway most of the way up, so you can move fast on genuinely good underfoot conditions rather than picking through rock.

All Anglesey routes →

How to enter

Sun, 1 Nov 2026 · Entries open

Enter on their website ↗

Entries are handled by Always Aim High, not by us. We take nothing for sending you there.

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

Common questions

: The Anglesey Trail Half Marathon & 10K offers 2 distances: 10K (6.2 miles), Half Marathon (21.1 km / 13.1 miles).
: The 10K has 52 m of ascent. The Half Marathon has 96 m of ascent.
: 10K: Moderate. Half Marathon: 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 Anglesey Trail Half Marathon & 10K. Always Aim High Events confirm mandatory kit in their race information, usually in the final instructions.
: We don't hold published time limits for the Anglesey Trail Half Marathon & 10K. If Always Aim High Events set cut-offs, they'll be in the race information.
: We don't hold a checkpoint list for the Anglesey Trail Half Marathon & 10K. What's on the table varies a lot between races, so check the Always Aim High Events race information rather than turning up expecting food.
: Not yet — we don't hold a course file for the Anglesey Trail Half Marathon & 10K. Some organisers only send the GPX to entrants. If we get one, it goes up free, with no sign-up.
: Sun, 1 Nov 2026. Entries open.