South Wales Scorpions suffered defeat in their Northern Rail Cup fixture at home to London Skolars.
Lewis Fox had given the home side an early lead but Skolars then ran in six unanswered tries at the Gnoll.
Louis Robinson, Lamont Bryan, Joe Price, Ade Adebesi, Matt Thomas, Dylan Skee and Andy McLean all crossed to give the Londoners a healthy advantage.
Nathan Mossop, twice, Alan Pope and David James claimed tries as Scorpions fought back for a losing bonus point.
Scorpions next play Toulouse Olympique away in the Cup on 3 March.
Meanwhile, North Wales Crusaders concluded their pre-season schedule at Parc Eirias with a 60-28 win over National League Conference champions Thatto Heath.