Welcome to MMRS

Maguire's Motocross Racing Series is leading the way in Canada by building sports facilities in southern Ontario for Motocross activities and through their use of Trackside/MYLaps Transponders for electronic scoring.

Maguire's Motocross Racing Series [MMRS] is a motocross racing series that offers a high level of competition on a wide variety of well prepared and maintained tracks. MMRS is owned and operated by John & Jean Maguire, owners of Muttco Mountain motocross track. Also included in our track line up are Madoc, Cochranes, Rocky Ridge and Thunder Mud.

Our goal is to provide a safe riding experience to riders of all ages and abilities, in a fun, family atmosphere.