Kent leapfrogged into second place with a straightforward 26-run win over Middlesex at Beckenham. Kent's innings was founded on a second-wicket stand of 56 between Joe Denly and Martin van Jaarsveld. Denly made 40 from 23 balls including three sixes. Middlesex never got over the loss of three early wickets, including Andrew Strauss who was caught at second slip in the first over.
Leicestershire were left to rue a washout against Durham at Leicester, and the point they gained for the no result was not enough to lift them into the top two and left their hopes of a quarter-final place in the balance. They reached 41 for 3 after 4.4 overs of a match shortened to seven overs a side before heavy rain returned.
Yorkshire beat Nottinghamshire by eight wickets in a five-over-a-side thrash at Headingley. Chasing 62 to win, Craig White bludgeoned 31 off 11 balls to set Yorkshire on their way.
Bottom and winless Somerset upset the form book as they romped to a six-wicket win over Gloucestershire at Bristol with 19 balls to spare. Gloucestershire's innings never got out of second gear, Cameron White the pick of a tight bowling attack with 3 for 16 in his four overs. Somerset were wobbling on 39 for 4 when Ian Blackwell grabbed the innings by the scruff of the neck and led them home with an unbeaten 42.
Northamptonshire boosted their quarter-final hopes with a surprising four-wicket win over runaway leaders Warwickshire at Northampton. Warwickshire stumbled to 100 for 7 in 18 overs, Jason Brown proving the pick of the bowlers with 3 for 16 from his four overs. Northamptonshire's nerves were settled by a 45-run fifth-wicket stand between Chris Rogers and and Riki Wessels.