Teenager Harry Robbins claimed a five-wicket hall as Frocester trounced Burbage & Easton Royal for 62, writes Steve Hill.
Robbins captured his five wickets for just 19 runs and then Frocester took only 9.5 overs to bank maximum points.
Elsewhere, Louis Gegg turned in a fine all-round display as Stroud stunned high-flying Thornbury by nine wickets in WEPL Premier Two Glos/Wilts.
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Thornbury, pushing hard for promotion in their 150th year, were pegged back to 207-8 by Gegg (5-27 from nine) as Dan Lezar top scored on 57.
And Gegg (63) then played a crucial supporting role in an unbroken stand of 151 with Ishan Mulchandani (93 off 78) to give Stroud vital breathing space in their battle to avoid relegation.
Bourton Vale trumped Painswick by six wickets.