North Wales Crusaders and South Wales Scorpions lose
North Wales Crusaders were beaten 38-18 by Dewsbury in the Championship.
Tommy Johnson, Craig Ashall and Rob Massam were the try scorers for Clive Griffiths' side, who are now 11th in the table.
In Championship One South Wales Scorpions secured their second bonus point of the season as they ran Gloucestershire All Golds close at Maesteg.
Scorpions ran in six tries with Greg Wilde and Connor Farrer scoring two tries apiece but the visitors triumphed 38-36 in a thriller.