In EuroManx South Lancashire/Cheshire Division Three, Douglas stayed top of the table with a scrappy 14-3 win over bottom side Prenton.
In a game dominated by the heavy conditions, Douglas started sharper and following a try by Andy Hollis and a Bryn Snellgrove penalty, they were 8-3 up at the break.
The expected Prenton second half cave-in never happened and Douglas had to be content with two more Snellgrove penalties in the second half to see them safely home.
Football: Island club wants community to design new crest and kit
Gymnasium AFC & Douglas Athletic FC merged during the summer
Boxing: Devine defeats Paredes to continue unbeaten run
Manxman moves onto 12 pro victories with unanimous points win
Athletics: Island athletes shine at British Masters
Seven-strong team claims 11 medals in Derby
Date confirmed for funeral of Sam Naughton
Isle of Man rider died following incident at this year's Manx Grand Prix