GAP factor 3.3% slower than flat · net elevation -15 m
Decision summary
Lower than 25% of comparable mapped races
Historical race-date favourability, not a forecast
Verified GPS route
Quick answers
RaceIndex has a GPS course file for Snowdonia Marathon, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.
The Snowdonia Marathon route has 786 m of ascent, 801 m of descent and an estimated 3.3% grade-adjusted pace penalty versus a flat route.
The Snowdonia Marathon route starts at Llanberis (postcode LL55 4TA) and finishes at Llanberis. Underfoot, expect a road course. It passes Nant Peris, Pen-y-Gwryd, Llyn Dinas, Beddgelert and Rhyd-ddu.
Its normalised GAP factor is 3.3% slower than a flat course, with about 786 m of total ascent.