Solihull & Shirley men confirmed their Division One status in the Birmingham League after they beat Bidgley Power 6-3 in the match of the week.
Two victories each for the Rob Forrester and Jo Hulse, Mick Ollivent with John Hudson, and Andy Pattie with Paul Harris secured the points for the Solihullbased side.
Power's Imran Basher and Wie Wang won all three games for the losers and they will face the endofseason challenge to remain in the top tier in April.
KRS recorded a moraleboosting 6-3 win over Broadway II to ensure their status in Mixed Division One. Warwickshire's Chris Tonks and Sara Mason, and Tim Lawrence with Jackie Megson were undefeated.
SGN secured the Women's Division Two title with a 6-0 whitewash over Solihull & Shirley II with Linda Chilton, Kirsty Dorian, Sally Bangay and Jenny Foster undefeated for the sixth time in nine matches.
Central chalked up an 8-1 victory over Solihull & Shirley II in the Men's Division Two match of the week.
John Plant and Ben Loach and Graham Brown with Ian Hulse remained unbeaten and Dave Bugden with Adrian Grateby won two further games for the Barnt Green-based winners.
Hotshots I enjoyed a 9-0 whitewash over Arden in Mixed Division Two, with Doug Woodhouse and Durrinda Fullerton, Jamal Uddin with Fiona McNaughton and Imran Basher with Tracy Baker in impressive form.