Roz Kerry included two 140s for 22 as Tramways A' team pipped Ox in York John Smith's Ladies League division one.
The last pairing of Julie Ashton and Lynda Kennelly secured victory.
Leaders Cueball were being held at 3-3 by visitors Flag entering the pairs, but Angie Hields shone with a 50 finish as the snooker club polished off the remaining legs.
Cygnet C' are creeping up on the leaders after Dawn Exton (125, 102 for 24) inspired her team to a resounding 7-2 win against Burnholme.
Slip B' captain Carol Perrett shot out on 70 bull finish as they also cleared up in the pairs for a 6-3 result against their A' team.
Division two front-runners Cygnet A' shot into an unassailable 6-0 lead despite two 117s from Yearsley's Jackie Clemit.
Beeswing had Nikki Judson closing on 97 and a winning pairs leg from Janice Potts-Roxanne Judson against visitors Severus.
Maggie Jenkinson-Gill Whitehead combined to seal Sun's win at Cygnet B'.
Slipper, for whom Elaine Metcalfe hit three tons, were taken to the wire by Clifton B' before Aline Turpin-Sue Tate won the match.
Tang Hall WMC saw the Sue Dodsworth-Ann Barker combination secure a close-fought victory over division three rivals Acomb.
Britannia A' were taken to the wire by visitors Cueball A' before sisters Sonya Love-Janine Cartwright secured them the points. Leeman B' were also last-gasp winners, Shelagh Kenny (2x100) and Barbara Russell (117) snatching the win against Woolpack.
Captain Lynne Clapham shone with 3 x 100, 105 and 140 as division four leaders Tiger overcame Tramways B' 6-3.
Shoulder nudged into second spot with the same score win at Volunteer A'.
Volunteer B's Collette Wilson closed bull and the Dot Sellers-Linda Goldsmith pairing completed their win at Tap. Nelson's victory against Jubilee B' came via the Muriel Wright-Julie Child partnership.
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