Moore and Smalley Palace Shield Premier Division
He took the astonishing figures of 6-8 inside nine overs to decimate the Croston line-up.
It was Croston who had won the toss and put Longridge into bat first.
They didn’t have an ideal start with Dan Wilkinson Jnr dismissed without scoring, one of four victims for Croston’s Jonathan Driver who returned figures of 4-35.
Longridge rallied, led by James Fairclough who top-scored with 63, a knock which included half-a-dozen boundaries and a pair of sixes.
Neil Holden chipped in with 31, supported by John Simpson (23) and Luke Platt (22), as they made 189-8.
In addition to Driver’s efforts, Matthew Morris also claimed 3-57 with Lee Childs also taking 1-36.
In reply, Morris (1) was quickly out to the bowling of Ian Simpson.
Fellow opener Adam Sexton was Croston’s top scorer with 33, while Stephen Langton (10) was the only other batter into double figures.
Simpson took 2-28 and Rory McDowell 2-6 but it was Mason who dominated.
Having dismissed Langton, he also accounted for Sam Marsh (1) and dismissed Lee Childs, Jack Marsh and Lewis Bland, all without scoring.
His half-dozen was completed with the dismissal of Steve Caunce (3) as Longridge eased home by dismissing Croston for 73.
The first XI play again on Saturday when they travel to Bush Lane to play Freckleton (1.30pm).