Leaders Ladybalk A crashed to their second successive defeat in Castleford and District Snooker League Section A.
After winning their first five matches, Ladybalk have now lost their last two.
The Pontefract team were beaten 8-2 at Great Preston C who climbed to second place in the table.
Smawthorne B and Knottingley Conservatives B are level on points at the top of Section B.
They are just two points ahead of third-placed Pontefract Cue Club E
RESULTS - Section A: B and S Sports Club A 4, Prince of Wales B 6; Great Preston C 8, Ladybalk A 2; Green Bowling A 8, Great Preston A 2; Ponte Cue Club C 10, Kippax Central B 0; Ponte Cue Club F 6, Elmet A 4; Rothwell WMC A 6, Garforth WMC B 4; Smawthorne D 8, Roundhill A 2; Swillington Welf D 6, Ponte Bowling A 4.
Section B: Garforth CC A 4, Smawthorne A 6; Garforth WMC C 8, Townville A 2; Knottingley Cons B 0, St Joseph’s A 10; NADS A 8, Ponte Cue Club B 2; Ponte Cue Club G 4, Rockware B 6; Progressive B 0, Carleton B 10; Smawthorne B 10, Ponte Social A 0; Swillington Welf C 4, Ponte Cue Club E 6.
Section C: Carleton A 8, Ponte Cons A 2; Edward B 2, Smawthorne C 8; Featherstone A 6, Progressive A 4; Garforth WMC D 10, Green Bowling B 0; Ponte Cue Club D 6, Swillington Welf B 4; Queen Victoria 4, Swillington Welf A 6; Rockware C 2, Prince of Wales A 8; Swillington Social A 2, Garforth WMC A 8.
Section D: Kippax Ex Serv B 8, YMCA A 2; Ponte Bowling B 6, Swillington Social B 0; Prince of Wales C 6, Knottingley Cons A 4; Rockware A 8, Hopetown WMC A 2; St Joseph’s B 2, Ponte Cue Club A 8; Townville B 2, Kippax Ex-Service A 8.