The victory, which was in the balance at once stage with the visitors trailing 14 v 11 at half-time, fast-tracks Ponty through to the Premiership Play-off title decider on May 19th.
In other results from the mid-week games Swansea and Aberavon scored six tries apiece in a thrilling game at St Helens. The hosts finished victorious, winning 46 v 44.
Cross Keys consolidated their push for a British & Irish Cup place for next season with a 31 v 7 away win at Tonmawr.
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