High Quality Content by WIKIPEDIA articles! The 2012 South Australian National Football League season was the 136th season of the top-level Australian rules football competition in South Australia. The season opened on Friday 23 March with a night match between Woodville-West Torrens and Port Adelaide, and concluded on Sunday 7 October with the Grand Final in which Norwood (minor premiers) won its 28th premiership by defeating West Adelaide (third at the end of the minor rounds).