Mark started his race career more than 40 years ago, driving a borrowed Class 9 car at the 1976 SCORE Baja 1000, a race he would dominate in the 1980s, with a remarkable five overall victories, in 1981, 1983, 1984, 1986 and 1988. Baja was, and continues to be, Mark’s favorite place to race. He also has wins to his credit south of the border at the SCORE Baja 500, SCORE San Felipe 250, and the NORRA Mexican 1000, where he brought his famous “Macadu” Chenowth-Porsche out of retirement for the inaugural event in 2010. That commitment helped influence a great number of other racers to join the vintage off-road movement and create what today is known as “The Happiest Race on Earth.”