Jos Buttler makes 42 but Lancashire lose to Worcestershire by 29 runs
Leicestershire Foxes beat Northamptonshire Steelbacks by one run
Jason Roy hits 58 as South Group leaders Surrey beat Kent Spitfires by four wickets
Somerset reach quarter-finals with victory over Middlesex
Notts Outlaws defeat Durham by four wickets, Ben Duckett 53 not out
Birmingham Bears into last eight following 31-run win over Yorkshire Vikings
Hampshire Hawks and Essex Eagles qualify from South Group following wins
Hampshire 71-3 v Gloucestershire
Only five boundaries so far in this Hampshire effort.
The two Ws (Weatherley and Whiteley) work nine from the over with a mix of ones and twos - that will be a feature of the rest of the innings.
Worcs 178-6 v Lancs 100-4
He's Lancashire Lightning's leading run-scorer in the T20 Blast but Steven Croft only manages a single this evening before edging Ed Barnard to the keeper.
A single by new batter Tim David takes the total to 100 but Phil Salt goes from the next delivery, bowled by Brett D'Oliveira for 44 from 27 balls as he attempts a big hit over the leg-side.
Dane Vilas is lbw to the next delivery and D'Oliveira is on a hat-trick.
Hampshire 62-3 v Gloucestershire
This feels like a one-day game from years gone by where the batting team won't go big until the last few overs.
It's now 0-14 from Tom Smith's three overs.
Sussex v Essex 94-4
Ravi Bopara strikes with the last ball of the eleventh over against his former employers to leave them 94-4.
The four out batters have struggled, taking just 21 runs from 24 balls between them.
No such trouble for Adam Rossington - the Essex opener has just gone four, four, six against young Archie Lenham, and moves to 86 from just 45 balls.
Hampshire 58-3 v Gloucestershire
We've now beyond the halfway mark in the Hampshire innings.
It's a used pitch and a big ground so the batters are going to have to do some very good running for twos and threes as boundaries may be harder to come by than normal.
Big hitter Ross Whiteley is tied up by Glenn Phillips with one from four balls before Joe Weatherley's reverse sweep off the final delivery relieves a bit of pressure.
Reaching a total of around 140 will be a good effort from this position.
Leics 186-5 v Northants
Image source, Rex FeaturesColin Ackermann onto 70 from 39 balls and Leicestershire can cruise past 200 now with 12 balls to go.
Buttler c Munro b D'Oliveira 42 (Worcs 176-8 v Lancs 85-1)
He is mortal after all.
Brett D'Oliveira sends down a waist-high full toss and Jos Buttler gets a top edge as he tries to swing it away over square leg.
The catch is safely taken and England's new white-ball captain goes after hitting three sixes and two fours in his 29-ball knock.
Lancashire well on their way to the quarter-finals, though.
Hampshire 50-3 v Gloucestershire
Tom Prest tries to clear the rope as Hampshire look to up the ante, but he gets a top edge and the catch is well taken in the deep by substitute fielder George Scott.
The strangle continues.
Middlesex 160-6 v Somerset
Chris Green whips the last ball of the innings off his pads through square-leg for four.
He top-scores with 44 not-out off 24 balls, and has given his side something to bowl at.
Ben Green took 3-38 for the visitors - can they chase this down and secure their quarter-final spot?
Hampshire 48-2 v Gloucestershire
An excellent sweep from Joe Weatherley brings him four - his first shot in anger.
But Tom Smith won't be too unhappy as his second lot of six only goes for seven.
Hampshire 41-2 v Gloucestershire
This match has been switched for TV from Nottinghamshire v Durham and the pitch is more central to accommodate the cameras.
But it's not making for a great spectacle so far as ball contains bat.
Benny Howell into the attack with some medium pace but Tom Prest has seen enough and sends one over the rope for the first six of the night.
More like it for Hampshire with 12 scored.
Leics 159-4 v Northants
A 29-ball fifty for Colin Ackermann has kept Leicestershire motoring and on course for 200.
He's 55 from 32 now
Worcs 178-6 v Lancs 71-0
Brett D'Oliveira bowls, Jos Buttler sashays out of his crease, and effortlessly lifts the ball away over the leg-side field for another six.
He now has 41 off 26 balls and Phil Salt isn;t doing bad at the other end either, he has 24 from 16.
Yorks v Bears 78-1
Image source, PA MediaAlex Davies fell for 16 but Paul Stirling took no time to respond, striking Matt Revis for his third six and four next ball.
A fourth maximum begins the final over of the powerplay.
Sam Hain also lifts Shadab Khan for six and the Bears have put up a sparkling powerplay.
Hampshire 29-2 v Gloucestershire
Glos skipper Jack Taylor brings himself on to bowl.
A rebuilding job here for Tom Prest and Joe Weatherley with five from it. No boundaries in the last five overs.
Hampshire 24-2 v Gloucestershire
The last over of the powerplay and Hampshire are struggling to time it on this used Ageas Bowl pitch.
New England One-Day international David Payne concedes just one leg bye and one single with his accurate left-armers.
The home side only going at four an over so far.
Surrey v Kent 124-4
Surrey have recovered well at the Oval - Jamie Overton has removed Jordan Cox for a well-made 54 from 31 balls.
The evergreen Darren Stevens strides out to the middle to join Alex Blake...
Worcs 178-6 v Lancs 46-0
Mitch Stanley charges in again and Jos Buttler moves across his stumps before flicking the ball fine for six with a nonchalant air of supreme confidence. A boundary, cross-batted through mid-off, follows and Buttler has 30 not out from 19 balls faced.
Hampshire 21-2 v Gloucestershire
Ryan Higgins with his second over and again he is on the money.
Just two off the first four balls, before BOOM, the big wicket as James Vince drags on!
This is a dream start for Glos with the T20 Blast's leading run scorer now gone.
Leics 119-2 v Northants
Colin Ackermann has picked up the bit for Leicestershire.
He's struck five fours and moved to 31 from 19 balls.
The Foxes once again working at almost 10-an-over and bang on top.