Champions Northants County were at their ruthless best in their final match of the season as they relegated Peterborough Milton with a 6½-1½ home victory.
Nick Beal, Quentin Wade, Harry Oddy, Michael Farr, Josh Pritchett and Joe Quinn bagged points for County, who topped the group with six wins and one draw from their eight outings as Milton were confirmed in bottom spot.
Overstone Park remained unbeaten in their promotion-winning campaign as they completed their year with a 4-4 draw at Kettering.
Jack Binch took the opening point for the visitors on the 14th, and although Kettering earned convincing wins in games two, three, four and eight, the second division champions bagged a share of the spoils thanks to narrow wins from Lawrence Ryan, Richard Dalton and James Barker.
Farthingstone clinched promotion into the second tier with one match still to play as they earned a battling 3-3 draw at Rushden.
After losing the opening three ties, the away side needed points from Richard Hook, Karl Leason and Sam Bird to ensure a draw that meant Daventry cannot now catch them.