Lancs beat Yorks by 26 runs
Jason Roy hits 109 in Surrey victory
Chris Gayle makes 49 off 23 balls
Wins for Glos, Glam & Northants
Birmingham, Somerset & Derbys win
Kent 83-4 (11.5 overs) v Gloucestershire
Andrew Tye has another one! Darren Stevens is beaten for pace and has his stumps re-arranged. So much for the Kent number five stamping his authority on this game...
Somerset v Essex 91-4 (12.2 overs)
Another set-back for Essex as Tom Westley's promising knock comes to an end.
He wildly mistimes one and after a long time in the air, Lewis Gregory takes the caught and bowled to keep the visiting team in check.
Glamorgan v Hampshire (18:30 BST)
Glamorgan, who have won the toss at Sophia Gardens, are unchanged from their defeat by Essex and will bowl.
Hampshire, who include James Vince and boom boom himself, Shahid Afridi, are also unchanged after beating Kent by nine runs last night.Glamorgan: Rudolph (c), Lloyd, Ingram, Donald, Cooke, Wagg, Meschede, Steyn, Hogan, van der Gugten, Cosker.
Hampshire: Carberry, Vince (c), Adams, Wheater, Afridi, Sammy, Ervine, Dawson, Berg, Andrew, Best.
Kent 78-3 v (11 overs) Gloucestershire
Kent's Sam Northeast is doing his best to keep the scoreboard ticking over with 29 off 25 balls
New partner Darren Stevens, on the other hand, wants to get on with it straight away, driving Liam Norwell through mid-on for his first boundary.
Northants v Worcestershire (18:30 BST)
Big-hitting Richard Levi is in for Northants at the top of their order.
But, Worcestershire welcome back Moeen Ali from England duty who'll line up alongside the in-form Brett D'Oliveria.
Worcestershire: Ali, Kholer-Cadmore, Mitchell (c), Clarke, Kervezee, D'Oliveria, Whitely, Cox (wk), Leach, Henry, Shantry.
Lancashire v Yorkshire (18:30 BST)
The news from the middle at Old Trafford is that Yorkshire have won the toss and chosen to bowl first.
Lancashire have a few big hitters in their side, including Martin Guptill, Karl Brown and Jos Buttler.
Yorkshire bring in England pair Joe Root and Jonny Bairstow.
Lancashire: Guptill, Petersen, Brown, Croft (c), Buttler, Livingstone, Clark, Lilley, Parry, Wagner, Edwards.
Yorkshire: Lees (c), Willey, Root, Bairstow, Ballance, Rhodes, Bresnan, Plunkett, Rashid, Patterson, Coad.
Kent 65-3 (9.4 overs) v Gloucestershire
We've almost reached the halfway point in the Kent innings and they're still struggling to time the ball on a wicket where batting looks tricky.
As if to prove the point, Sam Billings goes trying to force the pace, top edging Benny Howell for Liam Norwell to take a decent running catch in the backward point region.
Somerset v Essex 67-3 (9.1 overs)
Essex being strangled by Somerset's slower bowlers in the middle overs and Ravi Bopara is gone.
Not one to remember from the Essex captain as he took 15 balls over those eight runs.
Mahela Jayawardene takes the steepling catch in the deep off Max Waller's pin.
Northants v Worcestershire (18:30 BST)
Visiting captain Daryl Mitchell has called correctly in one of our 18:30 starts at Northampton.
Worcestershire have elected to bat first at the County Ground.
Somerset v Essex 59-2 (7 overs)
If you remember earlier (see 17:29), Essex's media guys were having a bit of a nightmare journey to Taunton.
Good news is they've finally arrived and it looks like a cracker of an evening as Essex look to rebuild again through Tom Westley and captain Ravi Bopara.
Kent 53-2 (8 overs) v Gloucestershire
Kent have finally brought up the 50 in the eighth over thanks to a Sam Billings single, but they're not finding it easy as the Gloucestershire bowlers continue to mix it up. Benny Howell's first over costs just four.
Birmingham Bears v Durham (19:00 BST)
BBC Newcastle's Martin Emmerson seems to be enjoying himself in the early evening sunshine in Birmingham!
Team and toss news from that one in about 45 minutes.
Kent 41-2 (6 overs) v Gloucestershire
Australian Andrew Tye enters the attack and makes an immediate impact. After three dot balls first up, he gets Daniel Bell-Drummond for 25, with keeper Gareth Roderick taking a skier.
It means just a Sam Northeast single in the final over for Kent before the end of the Powerplay.
Somerset v Essex 51-2 (5.1 overs)
Image source, Rex FeaturesI'm going to stop praising Essex's early efforts here as every time I do, a wicket falls.
Dan Lawrence's promising innings has come to an end after he cut one straight to the hands of Max Waller at point off seamer Lewis Gregory.
Somerset v Essex 51-1 (5 overs)
Essex haven't been held back by that early loss of Jesse Ryder.
Dan Lawrence and Tom Westley have both been finding the rope with regular intervals to bring up the visitors' 50 early on.
Kent 34-1 (4 overs) v Gloucestershire
Daniel Bell-Drummond gives the Kent innings some real momentum with successive boundaries - the first two of the innings - at the start of Liam Norwell's second over, and follows it off with two more to bring 16 off the over.
Somerset v Essex 17-1 (2.3 overs)
Image source, Rex FeaturesCommentator's curse as Somerset strike through the returning Craig Overton and Jesse Ryder is caught behind by Ryan Davies at the second attempt.
No big innings for the big-hitting Kiwi tonight.
Somerset v Essex 14-0 (2 overs)
Jesse Ryder and Dan Lawrence making patient progress in the opening overs for Essex.
A boundary each for the openers.
Kent 13-1 (1.4 overs) v Gloucestershire
A great start for Gloucestershire! Joe Denly tries to hit Liam Norwell over the top through the offside, but only succeeds in picking out Jack Taylor in the covers.
Somerset v Essex
Play under way at Taunton as Essex open up with Jesse Ryder and Dan Lawrence against the bowling of Yasir Arafat.