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An unbeaten 91 from captain Ian Cockbain helped Gloucestershire to a seven-wicket victory over Middlesex at Bristol. Nick Compton's 78 from 53 balls looked to have put Middlesex in a strong position as they made 175-3 on a pitch that grew slower as the game progressed.

Hamish Marshall began aggressively, striking six fours and two sixes in his 56, before Cockbain's clean striking ensured that Gloucestershire, who have not reached Finals Day since 2007, won with six balls remaining.

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Ebony Rainford-Brent
Ex-England batter on BBC Test Match Special

"That's dismissive and that's what we want to see in the T20 Blast. That six went miles back. It's what T20 cricket is about."

Riki Wessels wants to get this one over with quickly. A superb lofted drive over mid-on and a hige six over mid-wicket, and he's on to 30 off 15 balls.

Yorkshire CCC: "Fisher gets his fourth! Another one for the 17-year-old, this time he gets Tom Poynton (27) caught behind. Der 115/8 off 17"

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Chris Wright replaces Rikki Clarke and creates a chance immediately. Alex Hales squirts a pull shot high to fine leg but Keith Barker can't quite grasp it. A tough opportunity but, defending 142, one you feel they needed to take.

Gloucestershire look like chasing down their target of 176 against Middlesex with acting skipper Ian Cockbain, who is in charge of the T20 side until Michael Klinger arrives, is unbeaten on 68 off 40 balls having hit seven fours and three sixes. Paceman Steven Finn finished with a respectable 2-29 from his four overs with the hosts needing 16 off 16 balls.

Glamorgan have pummelled the Surrey bowlers to post 240-3 off their 20 overs, with Jacques Rudolph (62), Colin Ingram (91) and Chris Cooke (46 not out) leading the attack. Five of the bowlers had economy rates of over 11. In reply, Surrey soon lost Jason Roy and were 5-1 off the first over. Perhaps Roy was a victim of live text commentators curse, after we said he was one to watch.

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Keith Barker opens up at the other end and Riki Wessels greets him with a powerful pull shot, but he picks out a fielder and only gets one for it. Alex Hales is off the mark with a single to fine leg. Back with Wessels, who steers Barker through point for four in successive balls. Too much width from the bowlers, and it's being punished.

Riki Wessels steals the strike with a single off the last ball of the opening over. Notts 9-0 at the end of the first over.

That's not a bad start from Riki Wessels, turning Rikki Clarke through mid-wicket and then timing him perfectly through the covers for two boundaries from the first two balls. Wessels straight drives the fifth ball and hits Clarke on the foot, leaving the Birmingham bowler in a heap.

Yorkshire are all over Derbyshire in Leeds as the away side lose five wickets for just 15 runs with Shiv Thakor, Ben Godleman and Scott Elstone all falling cheaply. Richard Pyrah and Matthew Fisher have both picked up two wickets to leave the visitors struggling on 82-6 off 13 overs.

Both Michael Carberry and James Vince depart in the 30s for Hampshire as Adeel Malik, brother of Pakistani player Shoaib, claims his first T20 scalp of the season for Essex. The home side are 116-2 after 14 overs.

And, Sussex's Mahela Jayawardene has committed the cardinal sin of dropping Sam Billings of Kent just as he starts to find the boundary ropes. However, the home side continue to lose wickets and are 134-4 off 15 overs.

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Lancashire CCC: "If there is no further rain, play will resume at 8.30pm with 15-overs per side."

They have dodgy weather in the IPL too with Royal Challengers Bangalore facing a target of 81 from six overs against Sunrisers Hyderabad - but they have the men to do it with Chris Gayle, who is Somerset bound, and Virat Kohli opening the batting. Sunrisers earlier made 135-3 from 11 overs with Australia opener David Warner making an unbeaten 52 off 32 balls.

Marcus Hook: "This is only the second time Glamorgan have made 200+ in T20 cricket. Needless to say, this is now their highest total."

Glamorgan's previous highest T20 total was 206-6 at Taunton in 2006.

The players are back out at Trent Bridge. Notts openers Alex Hales and Riki Wessels will set off in pursuit of 142 to beat Birmingham Bears, the T20 Blast defending champions.

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Weather update - play to begin at 20:15 if no more rain. Northants, currently 47-5 after eight overs, will face a revised target of 151 to win from 15.

Remember, all eight of tonight's T20 Blast matches are being covered by BBC local radio.

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Gloucestershire are not hanging around against Middlesex as Hamish Marshall launches James Harris for a flat six and moves to his half-century with a single off Ravi Patel. With light rain coming down, the home side are 92-1 off 10 overs, needing another 84 runs to win from their last 10.

Glamorgan have achieved a new T20 record score at the Oval against Surrey despite seeing Colin Ingram bowled nine short of a century by Wahab Riaz. Chris Cooke has come out and smashed four sixes in a 16-ball 42 to take his side to 224-3 off 19 overs.

Sadly the weather is having an effect on the evening's entertainment with Leicestershire off the field after reaching 105-2 off 11.2 overs against Lancashire.

Duckworth-Lewis may have to decide the outcome at Chester-le-Street where Northants are 47-5 off eight overs, chasing 175 for victory against Durham. A return to the middle looks unlikely.

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Ebony Rainford-Brent
Ex-England batter on BBC Test Match Special

"Notts have bowled excellently. Harry Gurney kept it tight and caused some problems. He was backed up nicely by Jake Ball. Apart from the over where Tim Ambrose got into Vernon Philander, every bowler has bowled tight and caused problems. They'll be delighted with that first-innings score."

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BBC Sport's Elizabeth Ammon: "Think Warwickshire are about 30 short there #T20blast"

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Another run out to end things. No debate about this one, as Keith Barker is hopelessly out of his ground.

That's a stunning bowling effort from Notts, Luke Fletcher the star with 3-24, and the hosts will chase 142 to win their opening match of this season's T20 Blast.

It could have been a lot fewer had it not been for a superb 80 from Birmingham captain Varun Chopra, who has given his team at least something to bowl at.

Notts definitely favourites, though.