A half-century from David Coote was not enough for Collingham to overcome Plumtree as they lost by six wickets, in Division One.
Opener Coote hit seven fours and a six on his way to 64, and Taylor Bowers hit four sixes as he made a quick 30.
Tony Williams hit an unbeaten 24 as Collingham made 192 for the loss of six wickets.
In reply, Plumtree’s opening batsmen Saad Ashraf and Oliver Ward forged a partnership of 86 to help their side to 196 for four.
James Crudgington and captain Michael Berry hit 14 boundaries each in Oxton’s 98-run win over Lowdham.
Crudgington (78) and Berry (79) were the top performers as Oxton reached 236 for six.
Chris Graham claimed three wickets for Oxton to help tame Lowdham’s run-chase.
Thomas Austin scored 81 for Lowdham but eight of his colleagues failed to reach double figures and his side could only reach 138.
Opening batsmen Stephen Briggs and Devon McCarthy shared a 166-run partnership as Southwell claimed a 104-run victory over Balderton 2nds.
McCarthy made 88 and Briggs 80.
Matthew Smart claimed three Southwell wickets for 35 in a total of 230 for eight.
In reply, opening batsman Dave Colcomb made 34 and Steven Ryder 23, but three players were out for a duck as Balderton were dismissed for 126.
Unbeaten Martyn Hill hit a century for promotion contenders Farndon as they beat Sutton Bonington by three wickets.
Sutton Bonington’s innings got off to a poor start with their opening batsmen getting just 12 runs on the scoreboard and they eventually made 217 for seven.
Hill was the star performer for Farndon, hitting 110 runs, while Ashveer Gill struck 55 to help his side reach 218 for six.