Rasselbock 545
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- When
- 31 Jul 2027
- Distances
- 6 hours, 12 hours, 24 hours, 48 hours
- Location
- St Clement's, England
- Terrain
- Trail
- Event website
- https://rasselbock.co.uk/event/the-rasselbock-545-2027/
About Rasselbock 545
Held at Horspath Athletics Track in Oxford, the Rasselbock 545 is a timed track event that challenges runners to complete as many laps as possible within their chosen duration. Participants select fixed-time options and lap the 400 metre track accordingly, making this as much a test of mental resilience as physical endurance.
This edition targets 545 laps—surpassing the previous record of 505 laps set in 2025—with a cash prize available for the first runner to reach that milestone within the 24 hour race or the opening half of the 48 hour option. Taking place on 31 July 2027, the event uses straightforward lap counting to measure distance covered throughout.
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