You can tune in to BBC local radio ball by ball commentary from any of tonight's games by choosing an audio stream from the links at the top of the page. We'll try our level best to keep you up to date with events at the other grounds with regular text updates.

Worcester: Worcestershire Rapids v Yorkshire Vikings (started 17:30)

Leicester: Leicestershire Foxes v Birmingham Bears

Northampton: Northamptonshire Steelbacks v Durham

Trent Bridge: Notts Outlaws v Derbyshire Falcons

Bristol: Gloucestershire v Glamorgan

The Oval: Surrey v Kent Spitfires

Ageas Bowl: Hampshire Hawks v Middlesex (19:00)

Hove: Sussex Sharks v Somerset (19:00)

Image source, Rex Features

Lancashire Lightning, T20 champions in 2015, made it two wins out of two at the start of this season's Blast as they cruised to an eight-wicket victory over Leicestershire Foxes at Old Trafford.

Left-arm paceman Luke Wood took 3-11 as the visitors were bowled out for just 99 and Lancashire knocked off the runs in 11 and a half overs, with Steven Croft 46 not out from 34 balls.

Skipper Sam Curran hit 68 off 47 balls and shared a stand of 118 with brother Tom (50 off 33) as Surrey defeated Middlesex by 73 runs in the London derby at Lord's.

Middlesex lost their last seven wickets for 33 runs in five overs as they came up well short of their target of 200, with Gus Atkinson claiming 3-20 as they were all out for 126 in the 15th over.

Yorkshire have reached 105-4 in the 14th over against Worcestershire Rapids in the 17:30 game, with Jordan Thompson hitting three successive sixes in the previous one from Brett D'Oliveira.

D'Oliveira has the wickets of Jonathan Tattersall and Shan Masood, though, after Dillion Pennington sent back Dawid Malan and Adam Lyth in his opening two overs.

At Trent Bridge, Derbyshire Falcons have won the toss and chosen to bat first against Notts Outlaws in the East Midlands derby.

Durham will bowl first after winning the toss for their away game against 2013 and 2016 winners Northamptonshire Steelbacks, and Leicestershire Foxes have opted to bat against Birmingham Bears.

Sam Billings has won the toss for Kent and they will field first.

Both sides unchanged from their opening games, both of which they won. Still no Jason Roy for Surrey after he pulled up with a calf injury in the warm-up for Thursday's game against Middlesex.

Surrey: Jacks, Narine, S Curran (c), T Curran, Overton, Evans, Smith (wk), Clark, Abbott, Atkinson, Lawes

Kent: Muyeye, Bell-Drummond, Denly, Billings (c, wk), Cox, Leaning, Evison, Linde, Stewart, Richardson, Hogan

This season's T20 Blast is six days old and it's time for the first Frantic Friday, Frenetic Friday, Fantastic Friday - choose your own adjective - featuring eight games.

Three former winners - Essex, Notts Outlaws and Sussex Sharks - are among the final five teams making their seasonal debuts in the competition (the others are Durham and Glamorgan) this evening.

It should be - as the name on the tin suggests - a real blast!

Welcome to our coverage.

Image source, Getty Images

Friday's live text commentary will get under way at 18:15 BST.