UK road ultramarathons · Fixed distance
The Tunnel 200
Combe Down Tunnel, Bath · England
Two hundred miles beneath Bath turns a short railway tunnel into a very long race. It is an extreme specialist event, with a qualifying requirement and a deliberately repetitive course.
- Distance / format
- 200 miles
- Surface
- Paved tunnel path · repeated out-and-backs
- Next listed date
- 5 Mar 2027 – 7 Mar 2027
- Typical field size
- Not confirmed
The course and challenge
The race uses the paved Combe Down Tunnel path. The published limit is 55 hours and entrants need a previous 100-mile finish.
Dates and entry
The organiser's 2027 entry section lists 5–7 March and says entries are closed. An older 2026 date remains elsewhere on the page; use the explicit 2027 entry notice.
- Official edition details
5 Mar 2027 – 7 Mar 2027
Entry information checked 26 Sept 2026. A published race date does not guarantee available places.