Essex beat Surrey after posting 226-4 in 15 overs - Cameron Delport hit 38-ball hundred for hosts
Durham defend 148-4 to beat Northants by seven runs
Washouts at Worcestershire, Yorkshire, Hampshire and Leicestershire without a ball bowled
Gloucestershire v Glamorgan abandoned because of rain with Welsh side 96-8
Essex 182-3 (12.3 overs) v Surrey
Chance of a catch for Surrey at long on.... and it goes down!
It went high but Dan Lawrence is now 42 not out off 14 balls.
Rikki Clarke had started the over with a no ball which went for six.
Surrey are having a torrid time in the field.
Northants 128-8 (18 overs) v Durham (target 149)
Hang on a minute, another boundary from Graeme White and that's 11 runs from the over. Play the last two like that and Northants might just take an unlikely victory at the death.
Northants require 20 runs from 12 balls.
Essex 166-3 (11.4 overs) v Surrey
From just 38 balls, Cameron Delport gets to his century.
He brings it up in style, with a six. That's his 11th of the innings and he moves on to 103 not out.
It's been an incredible display of power hitting from the Essex opener, and he now has the fifth-fastest century in English domestic T20 cricket.
Northants 118-8 (17 overs) v Durham - target 149
Three overs to go but they'll just be a formality, Durham have been superb in the field.
Northants require 31 runs off the final 18 deliveries.
Essex 156-3 (11 overs) v Surrey.
Bad news for Cameron Delport.
He's missed the chance for the quickest hundred in English T20 competition.
Andrew Symonds plundered a century in 34 balls in 2004. Delport has 93 from 34.
But Dan Lawrence is in on the act now, with back-to-back sixes off Imran Tahir.
Another ball is lost. Next one? Smashed over deep midwicket for ANOTHER six.
Lawrence has 33 from 11 balls. Tahir has gone for 39 from his two overs.
Northants 104-8 (15.4 overs) v Durham - target 149
Scotland international Tom Sole skies the ball into the air and it's an easy catch at cover.
Essex 132-3 (10 overs) v Surrey
Two more big hits from Cameron Delport off Gareth Batty.
He smacks one into some flats and we need a new ball.
Batty responds... with a wide.
Next ball goes for another huge six straight down the ground, then he grabs a single.
Delport is now onto 92 from 33 balls. Incredible hitting from him.
Image source, Rex FeaturesNorthants 104-7 (15.3 overs) v Durham - target 149
And we're 100 up for Northants too. They require 45 runs from 27 balls.
Hampshire v Sussex - no result
Unfortunately it's game over at the Ageas Bowl. Bad weather prevents any play and the match is abandoned.
That's four washouts in all tonight.
Essex 109-3 (9 overs) v Surrey
Cameron Delport continues his one-man demolition of the Surrey bowling attack.
A six off Gareth Batty, then he gives Imran Tahir the same treatment.
A single puts Dan Lawrence on strike, and he gets another maximum off the South Africa spinner.
Essex aren't bothered it's just 15 overs a side. Delport is now 73 not out from 29 balls.
Northants 93-7 (14.2 overs) v Durham - target 149
Game over, Ashraf pulls the ball to Jack Burnham on the leg-side boundary.
The 22-year-old has been outstanding in the field today.
Northants 91-6 (13.3 overs) v Durham (target 149)
D'Arcy Short is a very good shout for man of the match on his Durham debut this evening. 47 with the bat, a catch in the field and now bowling figures of 2-19.
The clouds have gone as well now. We're going to get our full amount of overs here.
Image source, PA MediaEssex 88-3 (7.4 overs) v Surrey
Great delivery from Gareth Batty.
He sees Ryan ten Doeschate coming down the wicket and responds by dropping the ball a bit shorter.
The batsman still tries to take on the bowler and sends the ball straight down the throat of Will Jacks on the deep mid-wicket boundary.
Dan Lawrence is the new man in.
Northants 91-5 (13.2 overs) v Durham - target 149
Dwaine Pretorius is going down with a fight here. He's just hit a six and a four off Liam Trevaskis' bowling.
Northants require 58 runs from 40 balls.
Image source, PA MediaEssex 84-2 (7 overs) v Surrey
Rikki Clarke comes into the Surrey attack and his over goes for 12 runs.
Cameron Delport hit one six in that over, with a couple of wides thrown in from the bowler.
The Essex man is up to 60 not out.
Northants 72-5 (11.3 overs) v Durham - target 149
Is this game over for Northants?
Adam Rossington goes for the sweep but mistimes it and gloves the ball to the keeper.
Northants 72-4 (11.2 overs) v Durham - target 149
Adam Rossington has hit 47 of Northants' 72 runs this evening, as he adds four more runs with a flick through backward square leg.
Northants are 15 runs short of the Duckworth-Lewis par score as the grey clouds return at Chester-le-Street.
Essex 69-2 (5.4 overs) v Surrey
He didn't really need to do that.
Tom Westley looks to attack Gareth Batty and he is caught at long on by Aaron Finch.
Cameron Delport is well set but Essex are now two wickets down at Chelmsford.
Essex 68-1 (5.2 overs) v Surrey
And Cameron Delport brings up his half-century with a single off Gareth Batty.
His 50 has come from 19 balls. Great hitting.
Essex 65-1 (5 overs) v Surrey
Cameron Delport is continuing his aggression to the Surrey bowlers.
This time Tom Curran is getting the treatment.
He hits three consecutive sixes and two fours.
Delport is 48 not out from 18 balls, with five fours and four fours.
The spin of Gareth Batty comes into the attack.