Douglas beat Oldershaw 57-0 at Port-e-Chee to give them a much needed boost before the Christmas lay-off.
Andrew Evans bagged five tries as Douglas went on the rampage against struggling opponents.
There were also tries from Simon Heggs, Will Latta, Callum Carine and Bryn Snellgrove who also added six conversions.
Powerlifting: Manx competitors bound for world championships
Hampton and Skillicorn heading to South Africa later this month
Athletics: Ryan Corrin claims victory in Ramsey 10k
Cain wins women's race in third round of No Rest For The Wicked series
Golf: Career-best finish for Dawson on Ladies European Tour
Island player finishes just outside top 20 in London
Fresh calls for more MGP and Classic TT marshals
Officials say assistance especially needed for first few sessions
