1972 American Motocross - Jim Gianatsis
Mark Blackwell, 1971 USA 500cc National Motocross Champion on Husqvarna CR 400.  Shown here winning at the 1972 Florida Winter-AMA Series with his #1 plate before going to Europe to race in the 500cc World Motocros Championship for Husky. An eye injury casued by a thrown stone would effectively end his racing career that season. Here mark is ahead of (88) Gary Jones on the factory Yamaha who would become the 1972 AMA 250cc National Motocross Champion later this year.

Mark Blackwell, 1971 USA 500cc National Motocross Champion on Husqvarna CR 400. Shown here winning at the 1972 Florida Winter-AMA Series with his #1 plate before going to Europe to race in the 500cc World Motocros Championship for Husky. An eye injury casued by a thrown stone would effectively end his racing career that season. Here mark is ahead of (88) Gary Jones on the factory Yamaha who would become the 1972 AMA 250cc National Motocross Champion later this year.