Leaders Spalding were without a game in the Premier Division, allowing Sleaford 2nd to move closer to the top with a three-wicket win over Billingborough.
Billingborough finished their overs on 166-9 in the top flight’s highest scoring game.
Luke Hollingworth hit 66 for Sleaford 2nd and despite Paul Goodwin’s five-wicket haul, the visitors reached their target in the 42nd over.
Just nine points separate Sleaford in second from fifth-placed Market Deeping 2nd who scored a six-wicket win over Belton Park.
Bourne 2nd stay third after Tom Bentley’s 6-20 saw them to victory over Long Sutton.
On a damp afternoon, Spalding 2nd were the only club to top the 200 mark after Tim Norris made 107 in their win over Baston, consolidating top position in Division One.
Spalding made 230-6 before restricting Baston to 173-8 with Liam Davies hitting 55.
Belton Park 2nd claimed their first win of the Division Two season as five wickets from William Helliwell helped to bowl out Pinchbeck for 134 of which Danny Jackson hit 93.
Nick Crook then took five for Pinchbeck but steady batting from Belton saw them to a three-wicket win.
Matthew Revill also took five wickets as Claypole beat Long Sutton 2nd.
Belton Park 89, Market Deeping 2nd 92-4.
Grantham 2nd 123. Boston 2nd 93.
Bourne 2nd 140, Long Sutton 42 (T Bentley 6-20).
Billingborough 166-9, Sleaford 2nd 167-7 (Hollingworth 66, Goodwin 5-44).
Stamford Town 149-8 (B Bennett 62no), Woodhall Spa 2nd 17-2 – match abandoned.
Skegness 2nd 121-8, Heckington 102.
Spalding 2nd 230-6 (Norris 107), Baston 173-8 (Davies 55).
Burgh & District 117, Grantham 4th 116 (Wilkinson 5-15).
Pinchbeck 134 (Jackson 93, Halliwell 5-24), Belton Park 2nd 135-7 (N Crook 5-20).
Long Sutton 2nd 57 (Revill 5-15), Claypole 58-3.