Hampstead beat Stanmore by 26 runs to move to within two points of 2013 Middlesex ECB Premier League leaders Ealing, who went down by two wickets to Twickenham.
They are on 51 points with Hampstead on 49 and Teddington in third on 35 alongside Richmond after wins over Winchmore Hill and Eastcote respectively.
It remains tight at the top of Division Two with Brondesbury (39 points) leading Shepherds Bush (38), Brentham (36), North Middlesex (32) and Harrow (32).
In Division Three, Enfield hammered South Kensington by 10 wickets, bowling their opponents out for 52 and sit on top of the table with 49 points to Kenton's 45.
The attached spreadsheet details the weekend's results and latest tables.
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