Jordan Britcliffe took 6-59 to help Ribblesdale Wanderers claim a three-wicket win at Cherry Tree.
Wanderers had the hosts at 15-4 and 69-8 before late resistance from Craig Kennedy (31) saw the Blackburn outf it to 108 all out.
Ian Britcliffe also took 2-32.
In reply, the top order did their job as John Rain made 27, David Steinson 23 and professional Ryan Canning 23 to win in the 31st over.
The following day against Prestwich in the LCB Knockout, Wanderers were dismissed for 81, with Alistair Marsh top-scoring with 34.
Prestwich took 18.2 overs to win by eight wickets.
On Saturday Wanderers are at Padiham before they host Whalley on Sunday.