Complex sentence: In 2005-06, St. Pat's celebrated their only provincial victory in Girls' Curling, the first provincial win for St. Pat's in Girls' Curling since 1976, when Colleen Jones played skip for the team.
Split into simpler sentences: In 2005-06, St. Pat's celebrated their sole provincial sports victory, Girls' Curling. This was the first provincial Girls'Curling win for St. Pat's since 1976, when Colleen Jones played skip for the team.