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Grim beast in the East

Plough through 10k of mud, sand and hills of the county’s best motor cross circuit.

'Never have I appreciated a cup of soup more than from Macmillan post-race.'

Kieran, Team Macmillan off-road runner, 2012


Saturday 03 May 2014


Kent, Swanley

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Macmillan is thrilled to be the official partner of the Grim Challenge Series, taking you to a whole new realm of extreme running. Take on the Grim Beast in the East and plough through the mud, sand and hills in the countries best motor cross circuit.

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