Thames Ring 250
250 mile trail ultra following the Thames Path, Grand Union Canal and Oxford Canal, featuring a largely flat waterside route and a 100 hour endurance challenge.
| Date | Wednesday 21st April, 2027 |
|---|---|
| Distance | Ultra |
| Terrain | Trail |
| Course Profile | Flat |
| Location | Morrell Rooms |
| Town/City | Streatley |
| Area | Berkshire |
| Start postcode | RG8 9JA |
| Start time | 10:00am |
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Thames Ring 250 is a 250 mile ultra following a circular route through southern England. Starting and finishing in Streatley, Berkshire, the race traces the River Thames and two historic canals, offering a demanding long distance challenge through varied countryside.
The anticlockwise route follows the Thames Path, Grand Union Canal and Oxford Canal, primarily using relatively flat riverside paths and canal towpaths. Runners navigate using maps and GPX files, with 100 hours to complete the continuous course and manage their pace and rest along the way.
Organised by Challenge Running, the event provides checkpoints approximately every 25 miles, with food, drinks and sleeping facilities at selected locations. GPS tracking, drop bag transport and mandatory safety equipment support runners throughout the challenge, with a bespoke medal awarded to finishers.
Location
Results
| Results | Status |
|---|---|
| 2026 results | |
| 2025 results | |
| 2024 results | |
| 2023 results |
- Verified
- Chip timing company
- Organiser
- Organiser’s website
- Community
- Social/Other
- Pending
- Results pending
