MMRS is owned and operated by John & Jean Maguire, owners of Muttco Mountain motocross track.

John has an extensive history in motocross, both as a rider and more recently as a track designer, owner & operator. He has gained a reputation for building challenging, safe, well prepared and maintained tracks that are fun for all riding abilities. John has built and continues to build tracks throughout different communities for kids and parents to race and practice on.

John has years of experience as chief referee at motocross events and combines his riding experience, management skills and mild - no bull mannerism to achieve a fun filled, well organized environment.

Over the years, John & Jean have supported kids in sports through baseball, hockey, skiing and dirt biking. They have spent extensive time and money preparing and maintaining safe places for kids to have fun.

MMRS is an extension of this commitment.