Stuart Pickles and Jim Curran hit 180s for Boston Arms as they notched a 10-5 home win over downbeat N19 in the Archway League.
Captain Pickles also had a 15-dart leg for the victors, who rose to the top of the table, while Jimmy Galvin produced some late moments of quality for N19.
Former champions Kennedy's succumbed to a dramatic 8-7 defeat at title rivals Old Oak to suffer a third loss in six matches, with Billy Mundee's outfit reeling from the loss of PDC starlet George Killington.
Nicholas Nickleby remain handily placed in the fight for silverware after a 12-3 win at Robert Peel. Zac Chapman's precision steered them to a fifth win in six outings as they climbed up to fifth.
Elsewhere, in the Camden derby, Slattery's overcame early nerves to beat neighbours Sheephaven Bay 10-5 in slick fashion, as Allan Cole's side continued their impressive form.
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