Twickenham slumped to their second heavy defeat at the Green in a fortnight with South Hampstead securing a 125-run triumph.
Paceman Justin Scriven (6-51) and stand-in skipper Grant Hughes (4-23) couldn't stop the visitors posting a competitive 242 all out in helpful conditions.
Dan Hough (27) and Ashley Gray (22*) did the their best to hold the Ts reply together before the hosts were dismissed for 117.
The Ts reward for knocking our neighbours Teddington inthe Middlesex 20:20 cup is an away trip to Old Actonians on July 8.
A Middlesex County League Division Two and Three representative side take on the Mid Essex League at Twickenham Green on July 2.
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