Surrey's batting capitulated for the second time as Middlesex sealed an innings win before tea on day three.
Steve Finn claimed 4-19 as Middlesex crushed Derbyshire by an innings and 35 runs with a day to spare at Lord's.
Kent completed a 10-wicket victory over Middlesex to open a 36-point lead at the top of Division Two.
Neil Dexter is set to leave Kent after turning down a new deal at the club because he wants to play more first-team cricket.
Essex have taken Neil Dexter on a month's loan from Kent.
Text commentary and scorecard from the third ODI in Bulawayo
‘Headmaster’ Bob Willis and his deputies Mark Butcher and Ravi Shastri deliver their end-of-term report...
One Day Cup
England Women v India Women OD
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Ian Botham says James Anderson is the ideal man to become England’s leading Test wicket-taker.
Captain Alastair Cook has boosted his standing amongst England's players, says Andrew Strauss.