Finedon Dolben comfortably saw off their old rivals Northampton Saints to claim a seventh win of the season.
They have now opened up a 37-point gap at the top of the Hevey Building Supplies Northamptonshire League Premier Division.
Saints could muster only 154 all out with Geoff Jackson their top scorer on 27.
Tom Brett’s 17-5-48-4 was the main reason for the Northampton club’s frustration and 44 from Greig Hofbauer ensured a win for the Dolben with six wickets and 15 overs remaining.
Peterborough moved into second with victory in a low-scoring clash against Old Northamptonians.
Ajaz Akhtar’s 17-6-50-6 reduced ONs to 94 all out and, despite some top order troubles, an unbeaten seventh-wicket stand between Lewis Bruce (30no) and Paul McMahon (20no) calmed any Peterborough fears as they reached 96-6.
Wollaston slipped up against Premier Division new boys Oundle.
Having been the surprise package of the summer so far, Wollaston were unable to continue their fine start at home.
Chasing 196 for victory, Oundle edged home by two wickets thanks to 85 from Petrus Jeftha.
Chris Perry’s 5-56 went unrewarded.
Wellingborough Town finally tasted victory as they inflicted more pain on Burton Latimer in the basement battle.
They reached 191-9 but only after Thomas Howes hit 72 not out from number eight.
Burton got close but fell just short when they were dismissed for 182 with Karl Tapp and Kyle Bowie claiming three wickets each and Sam Owen taking 4-52.
The result leaves Burton 27 points adrift at the bottom after suffering their eighth defeat of the year.
Rushton seemed set for victory over over Horton House but were ultimately frustrated.
Skipper Andrew Reynoldson’s 127 and 4-32 had put them in pole position for the win as they made 262-9 and then had Horton in trouble.
But number eight William Knibbs made 44 not out to help the House hang on.
The other top-flight game saw Tom Worthington crack an impressive 142 from 151 balls as Brixworth reached 251-9 declared.
Stony Stratford had no reply and slumped to 138 all out with Colin Sibley and Ross McLean taking three wickets each.
Rushden now lead Division One after beating strugglers Kettering while their nearest challengers Desborough were held by Loddington.