Northants win with five balls to spare
Cobb 80 off 48 balls, Wakely 43 (39)
Jennings hit 88 (58) for Durham
Notts & Yorkshire beaten in semi-finals
Northamptonshire 15-2 (2 overs) v Nottinghamshire
James Taylor
Ex-England batsman on BBC Test Match Special
"That's a bizarre bit of cricket.
"It was almost two feet down legside, Chris Read took a dive and caught it. The umpire was giving it as a wide and then Josh Cobb turns round and sees he's been given out."
Northamptonshire 15-2 (2 overs) v Nottinghamshire
Disaster for Josh Cobb!
The umpire is already signalling for a wide, so far down the leg-side is Harry Gurney's delivery, but Cobb follows the ball and clips it behind to wicketkeeper Chris Read.
In comes danger-man Ben Duckett.
Northamptonshire 13-1 (1.2 overs) v Nottinghamshire
Harry Gurney is called for the tightest of no-balls, and it's a free hit for Josh Cobb.
He responds by bludgeoning the ball for the first six of the day, the ball just landing on the boundary rope.
Northamptonshire 5-1 (1 over) v Nottinghamshire
James Taylor
Ex-England batsman on BBC Test Match Special
"That's a big blow for Northants. We saw Adam Rossington got them through to this semi-final when he carried his bat against Middlesex.
"But, Josh Cobb actually prefers to open, so he won't be phased by coming in this early."
Northamptonshire 4-1 (0.4 overs) v Nottinghamshire
Image source, Getty ImagesGot him!
Nottinghamshire make the perfect start, Adam Rossington run out by a sharp bit of fielding from Dan Christian as the Steelbacks batsman set off for a quick single off Andre Russell.
Rossington looked to have been the one who called for the run, but a moment's hesitation costs his dearly as Christian picks the ball up and lands a direct hit on the stumps.
Nottinghamshire v Northamptonshire (11:30)
Image source, Rex FeaturesThe weather's brightened up, the teams take the field and we are ready to start.
It's all set for a brilliant day's cricket at Edgbaston.
Nottinghamshire v Northamptonshire (11:30 BST)
Gary Smee
BBC Sport at Edgbaston
The Eric Hollies stand. Wow. It never ceases to amaze with its array of fancy dress.
Today's line-up - we have a group of Mexican bandits, bananas without their pyjamas and some Santa Clauses.
And they'll get to see some cricket in about five minutes' time. Lovely stuff!
Image source, PA
Image source, PA
Image source, Rex FeaturesT20 Blast Finals Day
Image source, Getty ImagesFormer West Indies fast bowler Tino Best on BBC 5 live Sports Extra: "The North is always the best, even in club cricket from my experience, the north is always more intense than the south.
"Hampshire is nice and I love the nice weather down there on the south coast. But, the energy playing at Headingley compared to the Ageas Bowl is much more intense, 365 days a year, 24 hours a day.
"I'm not surprised all four of today's finalists have come from the North Group."
Tweet us using #bbccricket
It's not just pictures of fancy dress I'm after. Keep sending your predictions for today's winners and finalists coming in using #bbccricket.
Nottinghamshire v Northamptonshire (11:30 BST)
Image source, Getty ImagesNorthamptonshire will be targeting a victory to banish the memories of last year's Final loss to Lancashire and relive their memories of 2013's triumph.
Steelbacks came second in their group, before reaching Finals Day with a seven-wicket win at Middlesex.
Ben Duckett is the danger-man with the bat, with 389 runs at an average of 43.22 this season. Meanwhile Richard Gleeson conceded a miserly 5.97 runs an over with the ball, but as mentioned, a side strain means he misses out despite originally being included in Northants' squad.
Nottinghamshire v Northamptonshire (11:30 BST)
Image source, Rex FeaturesNottinghamshire have won more games than any other team in the T20 Blast this season, topping the North Group above Northants and Yorkshire.
Riki Wessels has been Outlaws' leading batsman with 396 runs, while it's been very much a team effort with the ball as no Notts player stands among the ten leading wicket takers in the competition.
England seamer Stuart Broad is in the squad, hoping to bowl his team to their first ever Twenty20 title.
Nottinghamshire v Northamptonshire (11:30 BST)
Northants captain Alex Wakely on BBC Radio 5 live Sports Extra: "We would've bowled first had we won the toss, but it's T20 Finals day and we've got to put in a performance if we're going to win today.
"We're a group who stay together and try and play entertaining cricket and we'll be looking to do the same again today.
"Steven Crook is fit but Richard Gleeson misses out with a side strain."
Nottinghamshire v Northamptonshire (11:30 BST)
Image source, Rex FeaturesNorthamptonshire call heads, but the coin lands on tails. Nottignhamshire captain Dan Christian, perhaps thinking of the overcast conditions, elects to bowl first.
Imran Tahir is the big omission from the Outlaws team, the South Africa spinner replaced by West Indies all-rounder Andre Russell.
Richard Gleeson fails to recover from a side strain for Northants, with Seekkuge Prasanna in the Sri Lanka squad.
Nottinghamshire: Lumb, Hales, Wessels, Christian, Patel, Russell, Mullaney, Read, Broad, Ball, Gurney.
Northamptonshire: Levi, Rossington, Cobb, Duckett, Wakely, Crook, Keogh, Kleinveldt, White, Sanderson, Azharullah.
You can hear every ball from all three of today's matches (yes, I'm confident we'll complete the lot today!) at Edgbaston.
The Test Match Special team will be on air throughout on BBC 5 live Sports Extra while our BBC local radio teams are also in position.
Make your choice of listening by selecting the Live Coverage tab at the top of the page.
Nottinghamshire v Northamptonshire (11:30 BST)
Gary Smee
BBC Sport at Edgbaston
Well, well, this was very unexpected after the gloomy scene which greeted me when I arrived about an hour ago.
The ground is looking in fine condition and IF there is no more rain we are in for a super day.
The stands are beginning to fill up nicely too.
Image source, Gary SmeeT20 Blast Finals Day
Image source, Getty ImagesThree out of the four teams taking part today have never won the title.
Northants picked up the crown in 2013, but for Yorkshire, Durham and Nottinghamshire the T20 trophy cabinet is empty.
BBC Sport's local radio commentators, who have followed every ball bowled so far in the competition, have assessed their team's chances.
T20 Blast Finals Day
Image source, Getty ImagesWhile we wait for the action to start, cast your mind back to one year ago when Lancashire Lightning won their first ever Twenty20 trophy with a 13-run victory over Northamptonshire in the final.
The Steelbacks were unable to keep up the form which had seen them beat 2014 winners Birmingham Bears in the semi-finals, with Lancashire cruising through their last-four match with a crushing six-wicket win over Hampshire.
Today, the trophy is destined for a new home after Lightning were knocked out in the group stages of this year's competition.
Tweet us using #bbccricket
Keep your pictures of fancy dress coming to #bbccricket
Tweet us using #bbccricket
Image source, Getty ImagesIt's the day we've all been waiting for, when county cricket comes out to party.
Nottinghamshire, Northants, Yorkshire and Durham all vying to be crowned kings of T20.
Who is your tip to pick up the silverware at the end of it all?
Also, if you're off to Edgbaston today and showing off your best fancy dress, tweet us using #bbccricket
Nottinghamshire v Northamptonshire (11:30 BST, delayed start)
Hold fire! We do have some news!
It has just been announced the toss will take place at 11:00 BST, with play to begin at 11:30 BST.
There will still be 20 overs a side, should the sun stay out in Birmingham.