Leigh Park are on a roll in the Peter Rook competition with four wins from four matches.
They cruised to an emphatic 9-3 success against Copnor A with a late flurry of seven out of eight frames.
Pete Ferguson, Richie Burnett and Dusty Tingley all chalked up doubles as the city side lost their unbeaten record.
Gavin Mengham knocked in a 36 and a 32 as Emsworth thumped Cowplain A.
Tommy O’Neil, Shaun Toms and Hugh Pollard were all on target for Chris Hardyman’s side.
The bottom two, Craneswater Q and A, finished level at Southsea.
Mike Talmondt hit a 47 and a 35 and skipper Andy Boulton rubbed out Matt Small’s effort.
The Z outfit saved the club’s reputation with a 9-3 at Al’s Club.
Nigel Ward scored 41, while Mark Turner and Art Newland also enjoyed the trip.
Cowplain Z top both lists in division two.
They crushed Copnor Xcels 11-1.
Andy Hall knocked in a 42, while Frank Baxter, Steve Hughes and Mark Tillison also impressed.
Carl Fuggle and Darren Loveday notched doubles as Copnor D and Cowplain Gas drew.
Bellair Club was a happy one with both sides chalking up decent wins. The B side cruised through 10-2 against former top-flight team Portchester X, while the A team won at Craneswater R 8-4.
Paul Jagger, Andy Peat and the May family saw off Jason Tame’s gang.
Then Phil Skinner and the evergreen Jim Hutton put Craneswater to the sword.
In division three, Dave Easterbrook gave Leigh Park B the lead at Copnor E but Norman Bradfield replied to seal a 7-5 win.
Cuestars B moved clear in division four with a 10-2 triumph at Topspot.
Callum White, Chloe White, Rio Smith, Andy Holbrow and Ashleigh Aslett were all on song.
Gary Green enjoyed a break of 51 as Copnor F crushed Craneswater 10-2.