2027 edition
Entry options are not yet confirmed for this edition. Check the organiser before making plans.
Modelled energy-cost change 0.4% versus flat · net elevation 48 m · true cost £355
Decision summary
Lower than 96% of comparable mapped races
30:00:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.
Lower than 14% of comparable known fees
Historical race-date favourability, not a forecast
Stored GPS route
Quick answers
raceindex.org has a GPS course file for Thames Path 100 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 Thames Path 100 Ultramarathon route has 222 m of ascent, 174 m of descent and an estimated 0.4% grade-adjusted pace penalty versus a flat route.
The Thames Path 100 Ultramarathon route starts at Richmond, South West London (Richmond Old Town Hall race HQ) and finishes at Queen's College Sports Ground, Oxford. Underfoot, expect mostly trail (about 75% trail, 25% paved). It passes Richmond, Shepperton, Henley, Goring and Clifton Hampden.
Bag drop is available. 12. Permitted from the 51-mile aid station (Henley) onwards; one pacer with runner at a time, on foot.
The stored route produces 222 m of ascent, while a source states 560 m. GPS sampling and elevation models can produce different totals, so both are labelled rather than combined.
| Entry fee | £225 |
|---|---|
| Travel (modelled) | £40 |
| Accommodation (modelled) | £90 |
| Estimated total | £355 |
Its normalised GAP factor is 0.4% slower than a flat course, with about 222 m of total ascent.
The adult entry fee is £225, and the estimated true cost to the start line is about £355 including modelled travel and accommodation.