Kestrels remained top on shots difference after edging a cracking game with Matelots to win 12-10.
Second-placed Otters, meanwhile, were having a bad day as they slumped 27-5 to a Wishfuls trio of John Clayton, Pam Cowling and Wendy Porter. But they were back on form in their next game to thump Two Plus One 24-4.
Wasps had a comfortable 21-5 win over Scorpions to stay within three points of top spot.
* In Division One of the Australian Pairs, a steady performance from Malcolm Pearce and Mike Norton saw them defeat Jean Holdsworth and Wendy Porter 22-7.
The result moved them two points clear of Derek Blow and Barrie Robinson who were held to a 11-11 draw by Gill and Pete Fletcher.
But the battle for the title remains very close, with only three points between the top four pairs.
* At the top of Division Two, Sue Gurbutt and Jane Scott opened up a four-point gap after beating Sheila and Ken Webster 15-8, while their nearest rivals both lost.
Heather and John Masters went down 10-8 to Anne Malcolm and Charlies Briggs who moved up to fourth, while Pete Neve and Richard Tyrell lost 19-16 to Tony Hunter and Joe Yensen.
They came good in the latter stages of the game to win five successive ends, including a score of six, and moved off the bottom.
Fixtures for the winter are now being worked on, with a view to being available within two weeks. The league season starts on Monday, September 16.