Ultra Running Ltd MTC Cymrun
The end to end of Wales, Holyhead to Barry Island over six days.
256 Mile
412 km
Nobody has reviewed this one yet
No reviews of the MTC Cymrun, 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 reviewRunning 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.
The course
Start time not confirmed yet — check with the organiser.
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 Ultra Running Ltd first.
What you’re in for
The end to end of Wales on foot: six days from Holyhead to Barry Island on National Cycle Route 8 — Lôn Las Cymru — with the overnights at Caernarfon, Barmouth, Llanidloes, Glasbury and Merthyr Tydfil. 256 miles, averaging just over 42 a day, and each day is also sold as a standalone ultra. 407.5km in six days, from the 35-mile last day down the Taff to the 47-mile crossing of the Cambrian mountains from Barmouth. Preset cut-offs each day at a minimum 4 mph average, a warning the first time you fall below it, withdrawal the second. Nothing on the course after ten at night. Checkpoints roughly every eight miles, trackers with SOS, maps and GPX for entrants only.
Terrain and trail
Route 8 is traffic-free cycle path, old railway and quiet lane, hard-surfaced almost the whole way — road shoes, as supplied. The Mawddach Trail and the Taff Trail are the flat and famous bits; between them the route crosses the mountains of mid-Wales and the Brecon Beacons, and those two days carry most of the climb.
Memories Made Outside · our print shop
Turn your MTC Cymrun into a print
Upload your GPX or connect Strava and we'll print the course with your name, date and finish time. From £12.
Make your race print →Cut-offs
Six days on Cycle Path Route 8, stopping at Caernarfon, Barmouth, Llanidloes, Glasbury and Merthyr Tydfil. Preset cut-offs on each day.
More from Ultra Running Ltd
Every Ultra Running Ltd race →Other races Ultra Running Ltd put on, soonest first.
6
Mar
2027
Winter Green Man Ultra
Ashton Park School, Blackmoors Ln, Bower Ashton, Bristol · Ultra Running Ltd
45 or 30 miles anti-clockwise on Bristol's Community Forest Path in March
Not open yet
£79–£95
11
Apr
2027
Pendine Sands Races
Next to Barnacles Cafe, Sea View, Pendine · Ultra Running Ltd
5k, 10k and half marathon out-and-back on the firm sand of Pendine beach
Not open yet
£30–£40
1
May
2027
Malvern Hills Ultra
Abberley Village Hall, Clows Top Rd, Abberley, Worcester, WR6 6AZ · Ultra Running Ltd
Point-to-point ultra on the Worcestershire Way over the Malvern Hills, 23 to 47 miles
Not open yet
5
Aug
2027
MTC Cotswold Ultra
Kemble Station, Kemble, Cirencester, GL7 6AW · Ultra Running Ltd
57 miles down the Thames Path from the source near Kemble to Oxford
Not open yet
£90
5
Aug
2027
MTC Thames Challenge
Kemble Station, Kemble, Cirencester, GL7 6AW · Ultra Running Ltd
Four-day, 186-mile run of the Thames Path from the source to the Thames Barrier
Not open yet
£595
6
Aug
2027
MTC Oxford Ultra
Travelodge, Abingdon Road, Oxford, OX1 4XG · Ultra Running Ltd
49 miles of Thames Path from Oxford to Henley-on-Thames
Not open yet
£90
How to enter
Tue, 4 Jul – Sun, 9 Jul 2028 · Not open yet
No entry link yet. Check Ultra Running Ltd’s site ↗
Add to your calendar · as an all-day entry, until the start time is confirmed
Partner · affiliate policy
Common questions
- The MTC Cymrun is one distance: 256 Mile (412.0 km).