 Two foundation clubs, the Balmain Tigers and the Western Suburbs Magpies, had played in every year since 1908, but the two sides merged to create the Wests Tigers who competed every year since the merger in 2000.To decide the grand finalists from the top eight finishing teams, the NRL adopts the McIntyre Final Eight System.The finals series was contested over a period of four weeks, culminating with the NRL Grand Final being held on Sunday 30 September 2007.