On a wet track, Ian "Pete" Geoghegan won the opening touring car race driving a Jaguar 3.4 Litre.
Driving a Lola T300 Formula 5000 in the 1972 Tasman Series, Gardner set a time of 1:24.0 during the Warwick Farm 100.
Warwick Farm Raceway hosted a round of the Australian Drivers' Championship on 11 occasions.
Warwick Farm hosted a round of the Australian Sports Car Championship each year from 1969 to 1972.
First place went to the Hillman Hunter crewed by Andrew Cowan, Colin Malkin and Brian Coyle.