Douglas lost just their third game of the season when they went down 35-5 at Winnington Park in South Lancashire/Cheshire Division One on Saturday.
They do, however, hold onto their second place in the standings but third placed Glossop closed the gap to four points.
Arch poacher Daryn Thompson crossed for Douglas in the first half of a scrappy affair, but Park led 25-5 at the break after putting in the better shift.
Douglas were unable to recover in the second period and, while they stemmed the flow of Park’s points, they couldn’t add to their own tally.