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.
Andrew Strauss says England have a lot of ‘difficult questions’ to answer ahead of the World Cup.
Full-on Yorkshire are the pride of the County Championship, says David Lloyd, and deservedly so.
One Day Cup
Durham win by 3 wickets
Twenty20 Champions League 2014
Kings XI Punjab win by 4 wickets
Perth Scorchers win by 6 wickets