2026 edition
Entry options are not yet confirmed for this edition. Check the organiser before making plans.
Modelled energy-cost change 1.9% versus flat · net elevation 32 m
Decision summary
Lower than 76% of comparable mapped races
30:00:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.
Historical race-date favourability, not a forecast
Stored GPS route
Quick answers
raceindex.org has a GPS course file for Race to the Stones Ultramarathon, 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 Race to the Stones Ultramarathon route has 1,260 m of ascent, 1,228 m of descent and an estimated 1.9% grade-adjusted pace penalty versus a flat route.
The Race to the Stones Ultramarathon route starts at Lewknor and finishes at Avebury Standing Stones. Underfoot, expect mix of trail, tarmac and riverside paths. It passes The Ridgeway, Thames Valley, Lattin Down, chalk downs and ancient woodland. Runs along the Ridgeway, Britain's oldest road, with a halfway basecamp at Lattin Down (hot food, showers, live entertainment).
Bag drop is available. Expect on-course music. 7.
Its normalised GAP factor is 1.9% slower than a flat course, with about 1260 m of total ascent.