Ruskin Park’s promotion chances all but disappeared when they crashed to a 29-10 defeat at Port-e-Chee in South Lancashire/Cheshire Division Two.
Will Latta was the star for Douglas picking up two tries. There were also scores from Simon Heggs and Christian Brew, plus two conversions and a penalty from Mike Hebden.
Orrell Anvils guaranteed their promotion with a 20-3 win over Ramsey at Mooragh Park.
Ben Harding kicked Ramsey’s only points of the afternoon in what was a disappointing finish to the season for the Manx side.
Harrison wins fourth Southern 100 solo championship with new lap record
Harrison wins Southern 100 Senior Race
Championship day at the Southern 100
Gotland to host 2031 International Island Games