The Autosport 3 Hours has been run twenty times since 1956. All but the first at Oulton Park have been held at Snetterton.
Production Sports Car Racing, 1956
Production Car Racing, 1957
Autosport, 1957
The Autosport Championship, 1960
The Snetterton Motor Racing Club, 1962
The "Autosport" Championship, 1963
The "Autosport" Championship, 1964
The History of Snetterton, 2001
Endurance Racing at Snetterton, 2001
The Autosport Three-Hour Race & The Autosport 3 Hour Race of 1964, 2014
The Autosport Three-Hour Race, 2015
Autosport 3 Hours, 2023
In 1965 the Autosport Championship culminated with two 65-lap races at Snetterton rather than the traditional three hour race.