Douglas picked up a bonus point win against bottom side Ellesmere Port to keep their hat in the promotion ring in South Lancashire/Cheshire Division Two.
They ran out 62-19 winners at Port-e-Chee.
Skipper Ryan Maddox picked up a hat trick of tries and there were also scores from Andy Evans (two), Andy Jones, Scott Goodall, Nick Horsthuis and Mark Magee.
Commonwealth swimming team to blend debuts with experience
It'll be the biggest of the Manx squads to compete in Glasgow
Commonwealth Games athletics squad in positive mood ahead of Glasgow
Five competitors - including three debutants - set to be involved
FC Isle of Man get pre-season underway with summer festival
Ravens get first runout ahead of new season
Swimming: Oscar Maddrell becomes triple British champion
Manx swimmer also breaks Island records during successful trip