Bill Zardo Sr. started his racing career at Pinecrest Speedway in 1962, competing at the track until its closure in the mid-1970s, contending alongside Junior Hanley and Don Biederman. He joined CASCAR in 1981 and became the first CASCAR Super Late Model Series champion. He also won the Flamboro Speedway Late Model title in 1984 and 1986, the Molson Series title in 1984 and Flamboro’s Triple 50s championship in 1987.

Zardo Sr. started racing in the American Canadian Tour in the 1990s, winning the Flexmor Super Late Model title in 1996. He’s also been a team owner and sponsor for other drivers, including his family of racers, son Billy Zardo, daughter Sharon Zardo (Shepherd), son-in-law Pete Shepherd Jr. and grandsons Lane Zardo, Billy Zardo III, Pete Shepherd III and Scott Nagel.