Paul Danson’s Blackpool side knocked Leyland off top spot with a convincing five-wicket victory at Fox Lane.
Leyland posted a below-par 140-8 off their 50 overs.
A chase at Fox Lane is never easy but Blackpool showed quality throughout their innings and chased down the total in 37.2 overs.
Out-of-form Luis Reece (6) again fell for single figures at the top of the order.
Danny Lamb (17) and overseas amateur Alex Ross (31) ticked the score along but the pair failed to kick on as both were victims of the impressive Christi Viljoen.
Namibian Viljoen then took the prized wicket of the in-form Henry Thompson (9) before adding Chris Parkinson (4) to his list of victims to claim yet another five-wicket haul.
Former Blackpool professional Richard Gleeson removed Andrew Makinson (3) and with Leyland struggling and in desperate need of runs, Tom Reece and Karl Cross both occupied the crease and showed moments of class to help steady the ship.
Tom Reece hit an unbeaten 35 off 58 balls which included three fours and one six, while all-round Cross scored an important 26.
Tom Murray only the lasted the one delivery being bowled by Steve Mercer and skipper Makinson closed the innings unbeaten on four.
Cross took the new ball and quickly removed Matt Houston and Danson before leg-spinner Tayyab Afsar took the wicket of Viljoen (15).
With the game evenly poised, Blackpool dug deep and Gleeson (42) and Stephen Twist (34) started to take the game away from Leyland.
Makinson then removed the pair but Andy Furniss scored an unbeaten 29 guiding Blackpool home to an important victory.
n Nathan McDonnell was the star of the show for Leyland second XI as they claimed a maximum 15 points against Blackpool.
Blackpool posted an impressive 170-8 off their 45 overs.
Adrian Darlington top scored with 58 while young
all-rounder Sam Oldham picked up three wickets.
Leyland lost just the one wicket in their chase.
Jonny Mote fell for 29 and after that it was the
He hit 92 off 75 deliveries including 12 fours and four sixes.
McDonnell was well supported by Hamza Khan (34*) as Ian Farrington’s side cruised home in 36.5 overs to stay in pole position.