Spalding 2nd missed out on a chance to further their division two promotion chances with a disappointing home defeat against Heckington on Saturday.
A victory against the division’s second-bottom team would have put Town’s second string right in the mix, but they were comfortably defeated.
Batting first Heckington racked up 163, before Spalding were dismissed for just 98.
Long Sutton keep in pole position but were made to fight all the way in a low scoring game against Friskney.
Jimmy Wright hit 51 of Sutton’s total of 129 before Barry Stanway took five wickets as Friskney fell just 12 runs short of their target.
Baston kept up their challenge for honours with a four-wicket win over Blankney, and Billingborough 2nd enjoyed a welcome victory over their Boston counterparts.
And Moulton Harrox Sunday finally registered their first victory of the season, amassing 181-9 against Market Deeping 2nd, before bowling their opponents out for a meagre 68.
In the premier division the clash of the top two Billingborough and Boston produced the most thrilling battle.
Boston batted first and fell to a modest 144 all out in the 41st over, Luke Hollingworth taking six of the wickets.
This gifted Billingborough four extra overs and 40 from Dave Newman and Chris King’s 42 saw the home side to 123 for five.
But when King was out, this quickly became 133 for eight and despite the efforts of the lower order, the final wicket fell for 140 in the 47th over.
Trevor Walton hit an undefeated 113 for Skegness 2nd as his side enjoyed a five wicket win over Bourne 2nd.
And new West Indian signing Cleton Payne helped Grantham to victory over struggling Moulton Harrox with an innings of 122.
In division two, Long Sutton 2nd lost their unbeaten record to Burgh & District, who were all out for 168 then bowled their opponents out for 91.
Pinchbeck’s Sam Smith was the division’s highest scorer with an unbeaten 70 which helped his side to a seven wicket win over Grantham 2nd.
Spalding 3rd stay in the promotion case after their sixth victory of the season against lowly Welby 2nd.
Welby batted first, registering 134-9, before Spalding knocked off teh runs with six wickets remaining.