Claim: 2009 The Island 300 was the twelfth event of the 2009 V8 Supercar Championship Series which includes thirteen V8 Supercar Championship Series.
Evidence: The 2009 V8 Supercar Championship Series was the thirteenth V8 Supercar Championship Series and the thirteenth series in which V8 Supercars have contested the premier Australian touring car title. The 2009 Island 300 was the twelfth event of the 2009 V8 Supercar Championship Series.