Notts Outlaws and Kent Spitfires confirm places in quarter-finals
Kent beat Surrey by nine wickets to strengthen position at top of South Group
South Group: Gloucestershire beat Middlesex by 10 runs
Hampshire beat Somerset by 75 runs, Sussex beat Essex by six wickets
North Group: Worcestershire Rapids beat Birmingham Bears by 49 runs, Lancashire beat Northants by eight wickets
Leaders Notts Outlaws beat second-placed Yorkshire Vikings in shortened game by 10 wickets
Derbyshire beat Durham by six wickets
Lancashire Lightning 19-0 (3 overs) v Northamptonshire Steelbacks 142-8 (20 overs)
It had been a solid start from Northants, containing the Lancashire openers, until Finn Allen smacked a flat six that almost took out Lightning's mascot giraffe.
So it's pretty even, all told, with Allen (15 not out) and Keaton Jennings (four not out) largely biding their time for now.
Birmingham Bears 125 all out (18 overs) v Worcestershire Rapids 174-6 (20 overs)
Image source, Rex FeaturesBen Dwarshuis has closed out the win for the Rapids, as Ryan Sidebottom is caught by Daryl Mitchell for 3.
Ish Sodhi was the pick of the bowlers, with 4-24, and Brett D'Oliveira ended with 3-15.
It's four wins in five for the 2018 champions, who boost their bid for a quarter-final spot.
Kent Spitfires 18-0 (3 overs) v Surrey 128-7 (20 overs)
Meanwhile at the Kia Oval, Kent have made a good start to their chase.
Daniel Bell-Drummond and Joe Denly are in the middle.
Essex 126-7 (17.1 overs) v Sussex
Sussex have picked up four quick wickets on the south coast to seize control of the match.
After David Wiese sees of Tom Westley for 53, Chris Jordan picks up the wickets of Jimmy Neesham and Ryan ten Doeschate.
Then Ollie Robinson gets in on the act to trap Feroze Khushi lbw.
Essex were 121-3 moments just 10 balls ago.
Durham 176-9 (20 overs) v Derbyshire
Durham's innings concludes at Chester-le-Street as Sean Dickson is caught and bowled by Jade Dernbach for 37 off the last delivery.
Durham perhaps fall short of what they looked like posting at the halfway stage where they were going around 10-an-over.
Scott Borthwick (33) and Ben Raine (32) with useful contributions for the hosts.
Birmingham Bears 112-9 (16 overs) v Worcestershire Rapids 174-6 (20 overs)
Three wickets in four balls for Ish Sodhi look like they've ended the Bears challenge.
First Jacob Bethell is caught by Ross Whitely then Ryan Yates is stumped by Ben Cox.
Jake Lintott is snagged at slip for a duck before Ryan Sidebottom avoids the hat-trick ball.
Spinner Sodhi ends with 4-24.
Lancashire Lightning 0-0 v Northamptonshire Steelbacks 142-8 (20 overs)
Finn Allen and Keaton Jennings are out to start Lancashire's chase, with 143 needed for a much-needed victory for the hosts.
The powerplay is important. You feel a good start would set Lightning nicely on their way to a reasonably modest total.
Mohammad Nabi opens the bowling for Northants.
Hampshire 136-5 (16.2 overs) v Somerset
50 and out for Joe Weatherley sadly.
He miscues an attempt to slog sweep Marchant de Lange again and Jack Brooks evenutally holds on to the regulation chance despite doing his best to drop the undroppable.
Hampshire 136-4 (16.1 overs) v Somerset
Hampshire fight back with some style as Joe Weatherley makes a half-century from just 34 balls.
He brings it up with a fine slog sweep of Marchant de Lange for six to go with the other two he's hit in this knock and a four.
Notts Outlaws v Yorkshire Vikings (start delayed by rain)
The umpires at Trent Bridge have deliberated and will take another look at the pitch at 20:20 BST as they hope to squeeze in a shortened game.
We're told the cut-off time for a five over per side match is 20:57 - the clock is ticking!
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Essex 117-3 (15 overs) v Sussex
It's finely poised down in Hove.
Tom Westley has brought up his 50, which included four fours and one six.
Five overs to go for the Eagles to push on.
Jimmy Neesham is with Westley in the middle.
Birmingham Bears 101-6 (13.4 overs) v Worcestershire Rapids 174-6 (20 overs)
Birmingham's hopes are surely over at New Road.
Opener Ed Pollock passed his half-century but then an attempted drive off Ish Sodhi goes high in the air and is caught by wicketkeeper Ben Cox.
The Bears require 74 runs from 38 balls.
Lancashire Lightning v Northamptonshire Steelbacks 142-8 (20 overs)
It's a slightly below-par score for Northants after a disappointing end to their 20 overs.
They scored just five runs from the last nine balls, after Rob Keogh was dismissed for 56.
Liam Hurt was the pick of the Lancashire bowlers with figures of 3-22 from his three overs.
Surrey 128-7 (20 overs) v Kent Spitfires
Image source, Getty ImagesAfter a fairly rotten start, which saw Surrey 17-3 after the powerplay, the hosts recovered from 59-5 to post 128-7.
Gus Atkinson was run out from the final ball looking for a second run, and Jordan Clark ends the top-scorer with 36.
Jamie Overton helped with 23 runs off 12 balls.
It could prove to be a fascinating run-chase on a difficult wicket.
Lancashire Lightning v Northamptonshire Steelbacks 138-7 (19 overs)
Rob Keogh holes out to deep mid-wicket going for a big shot and departs an impressive 56 off 48 balls.
The next ball Lancashire's Liam Hurt gets another wicket as Wayne Parnell is also caught by Alex Davies.
Graeme White faces the hat-trick ball for Northants but successfully defends.
Birmingham Bears 83-4 (10.5 overs) v Worcestershire Rapids 174-6 (20 overs)
It's two in an over for Brett D'Oliveira as Ben Cox stumps Matthew Lamb!
That might swing the match back in Worcestershire's favour.
However, Ed Pollock is still there on 42.
Birmingham Bears 81-3 (10.1 overs) v Worcestershire Rapids 174-6 (20 overs)
Image source, Rex FeaturesAnd, all of a sudden, there's a set-back for the Bears.
Brett D'Oliveira comes into the attack and bowls Sam Hain with his first ball.
Matthew Lamb is the new man at the crease.
Hampshire 70-4 (9.2 overs) v Somerset
Somerset taking control against Hampshire at the Ageas Bowl as danger man Colin de Grandhomme is dismissed for 28 off 19 balls by a very impressive reflex catch.
James Hildreth clings on at short mid-wicket off Lewis Goldsworthy to leave Hampshire 70-4 in the 10th over.
Birmingham Bears 81-2 (10 overs) v Worcestershire Rapids 174-6 (20 overs)
Birmingham are making decent progress in their run-chase at Worcester.
Ed Pollock is on 41 not out from 26 balls.
Essex 81-2 (10 overs) v Sussex
Teenager Archie Lenham gets a crucial wicket at Hove, as Michael Pepper is stumped by Oli Carter.
Pepper had three sixes in his 26-ball knock of 38.
Tom Westley is still there on 34.