Final result: Clayton 4-6 Littler
Semi-final results: Humphries 4-6 Clayton & Price 3-6 Littler
Quarter-final results: Van Gerwen 1-6 Humphries, Van Veen 4-6 Clayton, Price 6-5 Bunting, Littler 6-4 Rock
READ MORE: Why are nine-darters on the rise and are they a curse?
Clayton 3-2 Littler
Image source, PA MediaIt is raining 180s now with Jonny Clayton and Luke Littler going back and forth.
The pace of this match is unbelievably - trust me, it's getting harder and harder to keep up!
Clayton gets the hold, though. He edges in front again.
Clayton 2-2 Littler
John Part
Former PDC world champion on Sky Sports
Luke Littler has reeled both of the Welshmen in now!
I would like to have seen the odds on that at the beginning of today. He's just got two big fishes against two different Welshmen.
There's no reason either player can't win at the moment, they are both playing really well. Fireworks incoming.
Clayton 2-2 Littler
Image source, Getty ImagesHe's done it again!
Luke Littler gets the 170 out to deny Jonny Clayton a shot at the 46 he had left.
This final is heating up...
Clayton 2-1 Littler
Luke Hemmings
BBC Sport Wales
The noise has gone up a notch, if that’s possible, as Clayton takes the lead with the bullseye finish!
Clayton 2-1 Littler
Image source, Getty ImagesBullseye!
Jonny Clayton has quickly turned this final around.
He starts the leg with a 180 and then takes out 86 to win. The crowd roars its approval.
Clayton 1-1 Littler
Luke Hemmings
BBC Sport Wales
Luke Littler may have taken an early lead but the spirits are not dampened here in Cardiff as ‘The Ferret’ does what Little couldn’t in pinning double 10 to level the match.
The noise is palpable as Jonny Clayton follows it up with a 180 to start the next leg.
Clayton 1-1 Littler
John Part
Former PDC world champion on Sky Sports
You can feel the crowd getting on Luke Littler's back now. The thing is though, that can help him at times.
However, he gives up an important hold.
Clayton 1-1 Littler
Jonny Clayton might have thought his chance had gone after a couple of misses on the doubles.
But Luke Littler proceeds to miss chances himself, notably on tops, so Clayton can come back and hit it.
All square again and the crowd are in great voice again.
Clayton 0-1 Littler
John Part
Former PDC world champion on Sky Sports
That break of throw could lead to a very quick match, especially if Luke Littler gets in a flow like he did in the semi-finals.
Have your say using the 'Get Involved' button on this page
Never in doubt. If you thought Littler was going to be in trouble in the prem after his slow start, you don't know Littler!!
Milo, London
Love watching the young boy Luke Littler, special talent.
Norman, Newcastle Upon Tyne
Clayton 0-1 Littler
He started quickly in the semis and Luke Littler starts quickly again.
It doesn't take long for the world champ to hit his first 180 and he secures a break of throw on double 15.
Clayton 0-0 Littler
Luke Hemmings
BBC Sport Wales
The Utilita Arena is ready and in fine voice here in Cardiff in what promises to be an epic final where these fans will be willing one of their own in Jonny Clayton to extend his lead at the top of the Premier League of Darts.
Clayton v Littler
Boos for Luke Littler as he makes his way to the stage for the third time tonight, a stark contrast to the cheers for Jonny Clayton.
Exactly as expected, though, and Littler will be aiming to quietened the crowd quickly as he did in the semi-final.
Wayne Mardle
Former World Matchplay finalist on Sky Sports
If Luke Littler is going to cause an upset on Jonny Clayton's turf, he will want to do it properly.
If they both replicate similar standards to what we've seen already tonight, there's only going to be one winner and that's Luke Littler. But he has to replicate it.
John Part
Former PDC world champion on Sky Sports
All this talk about Luke Littler, I'm still interested in Jonny Clayton because what a night it could be for him to win here in Cardiff after taking out Gian van Veen, Luke Humphries and potentially Luke Littler.
It's a very tasty prospect indeed. He's eating all of this up.
This final is going to be fantastic. It's going to be fireworks. It's going to go right to 11 legs I reckon.
Clayton v Littler
I know the fans in Cardiff wanted an all-Welsh final but home favourite versus world champion seems like a pretty tasty match-up to me.
Jonny Clayton has been playing superbly throughout the Premier League and Luke Littler has just sparked himself back into form.
This could be a cracker!
John Part
Former PDC world champion on Sky Sports
I was hungry for it and it really delivered. I enjoyed every bit of that semi-final and I think Luke Littler did as well.
I certainly think that he capped off a match where he showed authority and determination. He just wasn't going to lose that. He just hasn't had enough of that display of attitude so far.
So these are all really encouraging signs for him.
Laura Turner
Ex-Women's World Championship quarter-finalist on Sky Sports
Luke Littler's performance was awesome wasn't it? It was unbelievable.
From week one we said that this was the kind of performance we were expecting right from the very off. It has taken him a few weeks to settle in for whatever reason, but he negotiated a difficult quarter-final against Josh Rock and pushed on against Gerwyn Price.
He was brilliant.
Result: Price 3-6 Littler
Philip Marsh
BBC Sport Wales at Utilita Arena, Cardiff
Gerwyn Price can have no complaints, that was convincing from Luke Littler.
A 111.05 average, 66.7% on checkouts and a 'Big Fish' to top it off.
Vintage stuff from the reigning world champion, who made a 111 average look like light work.
Price 3-6 Littler
Image source, PA MediaWhat a way to win it!
Luke Littler reels in the big fish - a 170 checkout - to get rid of one Welshman in Cardiff.
He'll go up against another in the final.
That was much more like it from Littler. A return to form was always going to come sooner rather than later.