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GB Ultras Snowdon Ultra 50

Betws-y-Coed, ConwyNo date announced yet

Forty-five mountain miles from Betws-y-Coed.

45 Mile

72 km

3,106 m ascent

43 m per km

20h cut-off

16:34/km to make it

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Nobody has reviewed this one yet

No reviews of the Snowdon Ultra 50, 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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The course

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EXPERT

TRP grade · E5·T3

20h cut-off, which needs 16:34/km

7 checkpoints

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What you’re in for

Forty-five miles from Betws-y-Coed on the Snowdonia Slate Trail past Swallow Falls, then up into the mountains: the flank of Tryfan, Yr Wyddfa, Glyder Fach and Glyder Fawr, the Devil's Kitchen and Llyn Idwal, coming back by Llyn Crafnant and Llyn Geirionydd. Hardcopy OS OL17 or a Harvey XT25 or XT40 is mandatory, with a base plate compass, and GB Ultras are explicit that you should be a competent map reader and not lean on GPS in poor visibility or the dark. Five checkpoints, 3,254 m of ascent.

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Other races near here

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Races from other organisers starting within 30 km of Betws-y-Coed, Conwy, nearest first.

How to enter

No date announced for the next running yet. GB Ultras’s site ↗ is where it will show up first.

Common questions

The Snowdon Ultra 50 is one distance: 45 Mile (72.4 km).

Past runnings

2026Sat, 5 Sept 2026