D. Anthony Venditti — known as “The Godfather of New England Auto Racing” — began construction of Seekonk Speedway in 1945 on the family's Seekonk Poultry Farm land. The gates opened for the first time on May 30, 1946 with the first race running on Memorial Day, a Thursday in late May. Built as a quarter-mile oval with seven-foot banking in the corners and 60-foot wide turns, more than 12,000 people were on the property on opening day.
The original track was designed for Open Wheel Midgets. The first-ever Seekonk Speedway race was won by Oscar Ridlon, rolling his midget into Victory Lane.
D. Anthony owned, operated, and promoted the Speedway until his death in 1991. He received the Promoter of the Year award in 1978.