Mudslinger Race series is happening Thursday nights at Buckwallow in Gravenhurst. Registration is at 6:00 pm, with the racing starting at 7:00pm. The series is begins on the last Thursday of May and runs until the last Thursday in August. It is a points series with multiple categories, and caters to both the hard core racer and the cyclist who wants to test themselves against some of the best trails and riders in Muskoka. The Mudslinger Race Series is sponsored by Angry Johnny’s Racing and Algonquin Outfitters.