Where can I find the Snowdonia Trail Marathon Eryri Ultramarathon route map?
Use the official course links on this page for the organiser route page, map PDF or route download.
Official course linksSnowdonia Trail Marathon Eryri Ultramarathon
This race edition
- Race date
- Date not confirmed for this distance
- Race timezone
- Timezone not confirmed
- Edition status
- Status not confirmed
Entry options
2026 edition
Entry options are not yet confirmed for this edition. Check the organiser before making plans.
true cost £230
Official event website ↗Data current as of
Decision summary
Snowdonia Trail Marathon Eryri Ultramarathon at a glance
- Cut-off average pace
- 12:06/km
- Entry fee
- £100
- Typical conditions
- 67/100
- Evidence depth
- 38 verified facts
11:30:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.
Lower than 63% of comparable known fees
Historical race-date favourability, not a forecast
Source facts available
Route details
Known course facts at a glance
Snowdonia Trail Marathon Eryri Ultramarathon has known course details for its ultramarathon race. The summary below keeps the focus on what is confirmed for the course.
- Official distance
- 57 km
- Terrain
- Trail
- Scenery
- Countryside, Mountain, Parkland, Forest, Lakeside, Moorland, Historic
Quick answers
What runners ask first
How hilly is the Snowdonia Trail Marathon Eryri Ultramarathon?
The Snowdonia Trail Marathon Eryri Ultramarathon is described as mountainous. The course listing puts the climb at 2,199 m.
Where does the Snowdonia Trail Marathon Eryri Ultramarathon route go?
Underfoot, expect mountain and forest trails, stone paths, slate quarry tracks. It passes Maes Gwm, Nant-y-Betws, Llyn Cwellyn, Beddgelert Forest and Cwm Trwsgl. Described as probably the biggest trail marathon in the UK. a bilingual (English/Welsh) trail running festival across four distances over two days.
What should runners know on race day for the Snowdonia Trail Marathon Eryri Ultramarathon?
5. A bilingual (English/Welsh) trail running festival across four distances over two days.
Race character
Scenery
- Countryside
- Mountain
- Parkland
- Forest
- Lakeside
- Moorland
- Historic
Atmosphere
- Wilderness
- Scenic Tour
- Festival
Terrain
- Trail
- Elevation character
- Mountainous
- Technicality
- Technical
- Source-stated ascent
- 2,199 m
Entry, logistics and records
Entry requirements
- Entry status
- Past event: The listed edition date has passed.
- Minimum age
- 20+
- Cut-off
- Finish cut-off 18:00 (approximately 11.5 hours from a 06:30 start).
- Qualification status
- UTMB Indexed race awarding 3 ITRA points to finishers.
- ITRA points
- 3 points
Race day logistics
- Aid stations
- 5
- Race village
- Event village with music, commentary, shopping, food, kit demos and toilets.
- Medal
- Finishers receive beautifully designed slate mementos reflecting the event's locations and local history.
Course facts
- Surface
- Mountain and forest trails, stone paths, slate quarry tracks.
- Landmarks
- Maes Gwm, Nant-y-Betws, Llyn Cwellyn, Beddgelert Forest, Cwm Trwsgl, Cwm Pennant, Nant Gwynant, Yr Wyddfa (Snowdon), Llanberis Path
- Notable features
- Described as probably the biggest trail marathon in the UK
- a bilingual (English/Welsh) trail running festival across four distances over two days
What does it really cost to run?
| Entry fee | £100 |
|---|---|
| Travel (modelled) | £40 |
| Accommodation (modelled) | £90 |
| Estimated total | £230 |
What are typical race-day conditions?
- 15°CTypical temperature
- 20 kphTypical wind
- 4 mmTypical rainfall
- 67Favourability /100
More race details
How much does the Snowdonia Trail Marathon Eryri Ultramarathon cost?
The adult entry fee is £100, and the estimated true cost to the start line is about £230 including modelled travel and accommodation.