the 2019 cams australian formula 4 championship (initially known for sponsorship purposes as the cams jayco australian formula 4 championship and later as the cams payce australian formula 4 championship) was the fifth australian formula 4 championship, a motor racing competition for open-wheel racing cars complying with formula 4 regulations, which were created by the fédération internationale de l'automobile (fia) for entry-level open-wheel championships. teams and drivers competed in eighteen races at four venues, starting on 14 march and ending on 14 july.