Fremantle Water Polo Championships Marlins 5th NWPL Championship April 10, 2014 Mariners 7th NWPL Championship April 10, 2012 Mariners 6th NWPL Championship April 10, 2011 Mariners 5th NWPL Championship April 10, 2009 Marlins 4th NWPL Championship April 10, 2008 Marlins 3rd NWPL Championship April 10, 2007 Mariners 4th NWPL Championship April 10, 2006 Marlins 2nd NWPL Championship April 10, 2005 Marlins 1st NWPL Championship April 10, 2004 Mariners 3rd NWPL Championship April 10, 2001 Mariners 2nd NWPL Championship April 10, 2000 Mariners 1st NWPL Championship April 10, 1998