Ridgeway's injury blow for Kingswood
Early tries from Liam Stinchcombe and Matthew Perriman put the home side in command and Paul Allen added a drop goal before the break.
Kingswood then forged further clear with scores from Dave Tomlin and skipper Dean Stephens before the hour, and tries from James Willmott and Stinchcombe rounded off a comfortable win.
St Brendan's moved up to third with a 52-12 home win over Tetbury. Ben Chilvers claimed two tries and six conversions, while Rob Hawkridge, James Douglas, Pete Hargreaves, Tim Bliss, Anthony Kolanko and Tim Jones also touched down.
Old Colstonians are second in Gloucester Premier after demolishing Spartans 92-5 with 14 tries from 12 players. Grant Williams and George Burrows both touched down twice.
Unbeaten Bristol Saracens remain in pole position after a 56-7 win at Hucclecote, where lock Edward Windsor claimed a hat-trick of tries. Second row partner Andrew Sellabank, centres Ross Bergen and Matt Comley, flanker Danny Whitford and No 8 Mike Race also scored.
A late try from replacement Dan Hart, converted by Darren Jefferies, secured a first league success of the season for Whitehall at Frampton Cotterell.
Centre Dean Weaver and hooker Paul Ford crossed early on for Whitehall. Ashley Honeywell added a conversion, before Hart came off the bench to turn the game.
In-form Bishopston inflicted a first defeat on Gloucester One leaders Painswick, rallying from a 10-6 deficit at the break for a 28-17 success.
Two Jon Martin penalties kept the home side in touch before Lee Dunn's try from a scrum move, converted by Martin, edged Bish ahead. Further scores came from Darren Havard, James Oakley and Sam Hababi-ahma.

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