Bourne Town came undone at UCL Division One leaders Peterborough Sports on Saturday, losing 2-0 at PSL.
A cracking Karl Gibbs header gave Sports the lead after 33 minutes before Andreas Pantinga celebrated a debut goal just before half-time.
Sports are keeping pole position warm until title likely champions Northampton Spencer catch up their games in hand.
Elsewhere in the league Blackstones are still without a win under recently-appointed manager Neil Cotton. They lost 3-2 at Irchester despite two goals from recent signing Marcus Dowman.
Bourne: Aaron Fagan, Lewis Hall, Dan Wilson, Andy Moss, Aaron Jesson, Kev Elger, Joe Bull (Aris Placis), Henry Dunn (Cardin Pierre-Liverpool), Scott Spearink, Harley Williams, Jones De Sousa (Josh Hales).