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registration openUltra Running Ltd
MTC Thames Challenge
Next edition: Thursday, 5 August 2027 – Sunday, 8 August 2027Kemble Station / Thames source to Thames Barrier, London, England
A four-day stage race following the Thames from its Cotswolds source to the Thames Barrier in London. The package combines the Cotswold, Oxford, Windsor and Richmond ultras with accommodation, meals and baggage support.
Official race site (opens in a new tab)
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DistanceNot yet published
AscentNot verified
CutoffNot yet published
Entry£595
Formatmulti stage
Navigationself-navigation
StartKemble Station / Thames source
FinishThames Barrier, London
Next edition
5 August 2027 – 8 August 2027
This is the most relevant confirmed edition currently held for the permanent race family. Edition-specific facts should still be checked against the final organiser instructions.
Edition archive
This is the only edition currently stored for this race family. Earlier verified editions can be added without changing the permanent race URL.
Check the official race source (opens in a new tab)Course facts incomplete
We will not invent the missing numbers.
The selected 2027 edition does not currently have a published distance in our verified source record. Until that core fact is available, Race For You will not calculate difficulty, climbing density, cutoff pace or a personal finish prediction for this edition.
Check the organiser before entering, travelling or using these details for training decisions. An older edition may appear in the archive, but its course facts are not silently carried into this one.
Verification
What we know today.
- Successful source check
- 4 Sept 2026
- Catalogue record updated
- 4 Sept 2026
- Source confidence
- medium
- Official source
- Available
Source transparency
Verify the final event detail.
The cited 2027 edition sources were reviewed on 4 September 2026 and support the recorded date, format and lifecycle. Current source conflicts remain explicit in the evidence record. Unresolved facts remain marked unknown rather than being inferred.
Found the missing detail?
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