Many people in Sunday's crowd felt that Saints' 223-9 was some 30 runs short of a par score. But such was St Lawrence's discipline with the ball and safe hands in the field that prospective league champions Cleckheaton were dismissed for just 116, their last six wickets falling for just 20 runs as they lost by 107 runs.
Pudsey were only 69-2 at halfway after a mean opening spell of 10-3-19-0 by limping Cleckheaton captain John Wood which rendered him virtually immobile in the field.
But the innings was given impetus by Chris Marsden, James Smith and opener and man of the match Adam Waite, who hit 94 before being out late on as five wickets fell for seven runs.
The underrated Ian Wood beat the bat more than anybody in taking 2-44, while leg-spinner Tanzeel Altaf took 4-50 in triggering the Saints collapse.
After losing Tim Jackson leg before to off-spinner Marsden in the second over of the reply on a sunny day in front of a very decent crowd of 900, Cleckheaton also lost Ian Nicholson to a diving catch by Jordan Thompson and Andy Gorrod to wicketkeeper Matthew Duce in off-spinner Steve Watts' first over.
The game was in the balance at halfway with Cleckheaton 80-3 but their decline started with the first ball after drinks when John Wood chipped Watts tamely to mid-wicket.
After Marsden's outstanding figures of 10-3-17-2 at the top of the Cleckheaton innings, Watts finished with 6-2-16-4 and paceman Richie Lamb, who took three wickets in an over, 2-0-7-4 as the innings folded in just 33 overs.
A delighted Smith said: "The lads deserve all the credit for executing the plan to perfection.
"The minimum target for us batting was 220 and for Chris to then bowl his ten overs and take 2-17 was an absolute dream.
"By the time Richie came on, he was able to exploit a bit of variable bounce."
Ian Wood, brother of Cleckheaton's skipper, added: "The difference was that Adam batted long and some of our lads got a start and got out in the 20s."