Croston slipped into the relegation zone with a seven-wicket defeat to Vernon Carus ahead of their crunch match against with fellow strugglers Fylde 2nd team on Saturday.
The Westhead Road side batted first in a rain-reduced game and it was a decision they may have regretted as openers Steve Caunce (duck) and Christopher Rand (three) went cheaply.
Simon Marsh led a spirited comeback before he was run-out on 19.
Philip Caunce in the middle of the order stopped a collapse with 16 not out and Robert Trafford added 12 to the scoreboard.
With the pressure to get a decent total, Jake Parsons was run out on four on the last ball of their innings as Adam Sexton was not out on one.
However, Croston’s biggest problem was that only three players reached double figures in setting a low total of 70 in 31 overs.
Mid-table Vernon Carus made short work of their target by getting over the finish line in 21 overs and only three wickets down.
Marsh had the most success with the ball taking 2-22 in his eight overs while Jake Parsons chipped in with 1-8.
Elsewhere, the 2nd team came out on top in the Palace Shield Competition Crabtree Cup Preliminary Cup after beating rivals White Coppice 2nd team by two wickets.
Croston won the toss and opted to bowl first and they restricted their opponents to a respectable target of 116 in 35 overs thanks to the bowling efforts of Nick Morgan taking 4-15.
In reply, Christopher Rand took advantage of some extra batting practice in the 2nd team as he hit out on his way to a top-score of 51.
Croston booked their place in the next round in 33 overs.