Bourne were held to a draw by bottom side Hartsholme despite the Abbey Lawn side cracking the top score in the League on Saturday.
The Abbey Lawn side made 286 for 7 but were frustrated by Hartsholme, who reached just 167 but held onto two wickets.
Bourne chose to bat first and made a fine start, reaching 92 before the loss of their first wicket, Pete Morgan caught on 32.
Morgan’s fellow opener Rob Bentley went on to reach 56, and there a further half centuries for Matthew Hawken, who struck 69 off 68 balls.
Hartsholme’s innings rarely gathered momentum with Colin Cheer and Darren Cousins claiming early wickets for Bourne.
Richard Genge made 41 but Tim Brown provided most resistance with an unbeaten 66 that went a long way to saving his side from defeat.
Cousins, Cheer and Hawken each claimed two wickets but Bourne remain in the wrong half of the table.
Woodhall Spa remain top after Matt Sargeant claimed 8 for 50 to help bowl the home side out for 145. Sargeant then completed his man of the match performance with an unbeaten 60 as the visitors went on to win by four wickets.
This increased Woodhall’s lead at the top to 29 points as Lindum continued their steady climb up the table with a 15 run win over second-placed Sleaford.
Third-placed Bracebridge Heath kept up the pressure with a comprehensive demolition of Haxey.
Matt Carter claimed four wickets in four balls and finished with eight for 30 off 10 as Bracebridge tore through Haxey dismissing them for just 81.
Earlier, Paul Cook had hit 81 as his side finished on 215 for 5.
Sleaford stay second but are now only seven points ahead of Bracebridge who in turn are seven up on Market Deeping, victors at Skegness after bowling the seasiders out for 144,
Tom Andrews took four wickets and then hit 58 with Mehul Adatia adding an unbeaten 65 as Deeping claimed a five wicket win.
Skegness 144, Market Deeping 148-5; Bracebridge Heath 215-5, Haxey 61; Louth 243, Spalding 195; Bourne 286-7, Hartsholme 167-6; Lindum 236-7, Sleaford 221; Grimsby 145, Woodhall Spa 146-6.