Houghton-on-the-Hill strengthened their Division One title chances with a seven-wicket win over Grantham on Sunday.
They hold a slender three-point lead at the top from Belvoir whose result at Queniborough was yet to be declared at the time of going to press.
At the other end of the table Sproxton look all-but-doomed after slipping to their 10th defeat of the season, by five wickets, at home to Sileby who moved out of the bottom two.
They leapfrogged Barkby United who were plunged into the drop zone after a nine-wicket loss at home to Woolsthorpe who are themselves mounting a late championship bid.
* With Division Two leaders Queniborough Second XI out of action, Egerton Park missed a great chance to steal a march at the top when they slumped to a surprise 11-run defeat at home to lowly Bingham.
Three of the visiting batsmen passed 50 as Bingham posted 221-5 from their 40 overs, Cameron Good top scoring with 78.
Skipper Tom Glover, who had earlier taken 3 for 26 from 10 overs, was again among the runs for Park in their chase, hitting 72. But despite good support from opener Jacob Bates (42), James Burdett (21) and Joe Barnard (21), the hosts were bowled out, 12 runs shy of their target with 17 balls still in hand.
Park moved to within a point of the leaders, but Queniborough have a game in hand.
Ashby Carington Second XI maintained their outside chance of promotion with a four-wicket win at Bottesford whom they leapfrogged into third place.
Kasey Newby (4 for 34) single-handedly dismantled the Bottesford top order before Mike Fowler (49) and James Pye-Smith (40) led the home fightback. But Nigel Hubbard took 4 for 32 to bowl the home side out for 167.
Tom Talbot and Simon Silverwood had Ashby in trouble early in their reply, but well-paced contributions from Louis Massarrella (33), Adam Buckby (37), Dave Favell (33 not out) and Brandon Buckby (22 not out) saw the visitors home with two overs in hand.
* Thorpe Arnold went clear in Division Three with a comprehensive win in the top-of-the-table clash at Whissendine.
The home side won the toss and put Thorpe into bat who were held to 207-8 from their 40 overs.
But Whissendine batsmen struggled to keep pace with the required run rate, finishing on 168-7 as Thorpe went 23 points clear at the top.
Sholay are breathing down Whissendine necks in third after edging to a four-wicket win at Skillington.
Two wickets apiece for Panchal Amrish, Gallagher Plowman and Jaimin Mistry restricted the home side to 161-8 from their allocation.
Sholay openers Priyan Mistry (59) and Jaimin Mistry (41) laid the foundations, and despite a middle order wobble, Prakash Panchal (30 not out) saw them home with more than five overs to spare.