Complex sentence: The Maroons have continued their recent success with a 16--12 win over New South Wales in Game I of the 2011 series, they failed to win Game II going down to New South Wales 18-8.
Split into simpler sentences: The Maroons have continued their recent success with a 16--12 win over New South Wales in Game I of the 2011 series. However, they failed to win Game II going down to New South Wales 18-8.