Readers Lincolnshire ECB Premier League leaders Bracebridge Heath inched further ahead after picking up 20 points against Spalding, while second-placed Woodhall Spa finished with 18 after being held to a draw by Market Rasen.
Grimsby Town and Grantham continued their battle to stay out of the relegation zone, just 11 runs separating the two at the end of a drawn game with Grimsby claiming 15 points to their opponents’ 11.
But the tightest game of the day came in mid-table where Louth hosted Lindum and ended up the victors by just five runs.
Amila Wettasinghe hit 51 of Louth’s total of 231, with Ryan Sneddon taking five wickets.
Lindum then hit back with 72 from Charlie Tomlinson but Andy Carrington’s six wickets saw his side move up to fifth-place in the table.
Bracebridge Heath were involved in the most eventful match which ended with three wickets falling in the final over.
In the first innings, Kit Spence made his maiden ECB Premier League century with an unbeaten 109 off 89 balls with nine fours and three sixes.
With three overs of the match remaining, Spalding were 188-7, needing 206 to claim an extra three points for a draw by reaching three-quarters of the Bracebridge score.
The 49th over brought 13 runs but Matt Bradley then took a wicket with his first ball and his fourth and on the fifth, Ben Smith was run out for 64 to give the visitors maximum points with a ball to spare.
Market Deeping stay third after another high scoring game against Skegness, who made 234-9, a total Deeping overtook for the loss of six wickets, Ajaz Akhtar hitting 98.
Woodhall recorded the top team total with 267-7, Malinga Bandara with 75, Sam Evison hitting 53 and Etienne Botha 54 for out.
Matt Rutherford took his season’s total of wickets to 47 with a haul of five for 73 then went on to hit 47 as his side hung on to make 131-9.
And for Woodhall, Jack Luffman has now topped 500 runs.
Bourne won the contest for fourth place and are just four behind Deeping after a comfortable 44 run win over Sleaford in which Pete Morgan hit 51 for Bourne and Jack Berry took five wickets while Matthew Mountain made 53 for Sleaford.
Grimsby re-discovered their batting form at Grantham, Connor Hawkins hitting 71 and Michael Brown 69 while Joe Peck took five wickets for the home side, who went on to make 227-8, new signing Dan Freeman and skipper Rohan Nurse each hitting 56.
Results: Bourne 224 (Morgan 71), Sleaford 180 (Mountain 53, Berry 5-57); Woodhall Spa 267-7 (Bandara 75, Evison 53, Botha 54no, Rutherford 5-73), Market Rasen 131-9; Skegness 234-9 (Adatia 5-59), Market Deeping 235-6 (Wheatley 59, Akhtar 98); Louth 231 (Wettasinghe 51, Sneddon 5-68), Lindum 226 (Tomlinson 72, Carrington 6-63); Bracebridge Heath 275-6 (Spence 109no, Atri 52), Spalding 202 (Smith 64); Grimsby 238-8 (Hawkins 71, Brown 69, Peck 5-49), Grantham 227-8 (Freeman 56, Nurse 56).