Team Position: Mechanic and Rider
Age: 35
Hometown: Dade City, FL 
Email: mark@sinnracing.com
MySpace: www.myspace.com/doinck

Riding Experience: Mark has been with Sinn Racing for the past 6 years as a rider and mechanic.  He will be competing and acting as head mechanic for Sinn Racing at the USHRA Monster Jam Quad Wars and short track races during the 2008 Season. His extensive knowledge of high performance race engines and chassis setups has brought Sinn Racing many wins and championships.

During the 2009 Season Mark will also be running the SidexSide races at the Orlando, Miami and Tampa Monster Jam Series and driving the Built Ford Tough Blue Thunder Ride Truck at the Orlando, Miami, Tampa, Jacksonville Monster Jam Shows and at the Vegas Monster Jam World Finals.