Lewis hits out to snatch unlikely win for Gloucestershire
Owais Shah (111) and John Simpson (82) led Middlesex to an imposing 299-8 but Gloucestershire were kept in the hunt by Steve Snell (95) and Chris Taylor (85) and Lewis won it with a ball to spare as he hit Murtagh for a four and two sixes in the last over.
Michael Comber and Adam Wheater, both aged 20, were the Essex heroes as the home side beat Northamptonshire by five wickets.
They came together with Essex struggling on 100-5 in the 22nd over in reply to a total of 215-6, but both displayed a cool head on young shoulders to see their side home with nine balls to spare. Sussex's bid for a third successive 40-over league title gained momentum as they eased to a six-wicket win over Surrey Lions at Guildford.
An unbroken fifth-wicket stand of 113 in 14.5 overs between captain Mike Yardy and Andrew Hodd saw Sussex home with 10 balls to spare and took them a point above their rivals and into second place in Group A, although Surrey do have a game in hand.
Somerset limped to their seventh win in seven games by beating the Unicorns by three wickets at Exmouth.
Marcus Trescothick's side shook off the loss of their captain to a second ball duck to chase down their target of 167 with two overs to spare.
A second-wicket stand of 67 in 14 overs between Nick Compton (64) and Craig Kieswetter (30) broke the back of the semi-professional team's resistance.
Powerful half-centuries from David Hussey and Chris Read set Nottinghamshire on their way to a comfortable 75-run victory over Scotland.
After coming together in the 24th over with the score at 116-4, the pair put on 89 for the fifth wicket as the hosts finished on 260-5 having added 115 in the last 10 overs.
Despite a bright start, Scotland never looked like overhauling their target and were bowled out for 185 in the 39th over.
Opening batsmen Michael Lumb and Jimmy Adams led Hampshire to a resounding six-wicket win over Durham at the Rose Bowl with 31 balls to spare.
Lumb signalled his return to form after a poor first half to the season by making 75, while Adams top-scored with 86.
Chasing Durham's 205-8 from their 40 overs, a total which never looked like being enough, Hampshire got home in the 35th over.
Tom Smith produced a sparkling all-round performance and Steven Croft weighed in with a career-best 93 not out to help Lancashire seal an eight-wicket win over Glamorgan.
Smith followed up figures of
3-49 with a fine half-century as Lancashire registered their fourth win by chasing down 212.
Croft's effort from 90 balls hastened Lancashire's victory charge as they won with 16 balls to spare.