Postpublished at 20:56 British Summer Time 26 July
Wade 11-7 Clayton
John Part
Former PDC world champion on Sky Sports
I think James Wade's scoring is the best I've ever seen it - over the entirety of his career.
World Matchplay semi-finals in Blackpool
Luke Littler defeats Josh Rock 17-14 to set up final against James Wade
James Wade beats Jonny Clayton 20-18 in epic encounter
Littler v Wade in Sunday's final at the Winter Gardens (20:00 BST)
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Sam Drury and Ben Ramsdale
Wade 11-7 Clayton
John Part
Former PDC world champion on Sky Sports
I think James Wade's scoring is the best I've ever seen it - over the entirety of his career.
Wade 11-7 Clayton
Jonny Clayton responds with an 11-darter of his own.
He started the leg with a 180 and hits tops with James Wade a long way back.
Wade 11-6 Clayton
Rod Studd
Commentator on Sky Sports
This is clinical stuff. This is typical James Wade.
Wade 11-6 Clayton
James Wade just has to hold his nerve on throw from this position and he does just that here.
After a 140 and a 171, tops seals an 11-darter for 'The Machine'.
Wade 10-6 Clayton
Jonny Clayton is let off the hook this time.
After just missing the bull for a 119 out, Clayton can only watch as James Wade goes for 75.
The former Matchplay champ gets one dart at double top... and misses.
Relief for 'The Ferret', who takes out double 16 to hold.
Wade 10-5 Clayton
Both players have had 16 darts at double, James Wade has hit 10 to Jonny Clayton's five.
That's the difference. Clayton has five more 100-plus visits so far but Wade has been ruthless on the outer ring.
Wade's average is north of 104, compared to 100 for the Welshman.
Wade 10-5 Clayton
Another break chance for Jonny Clayton but he misses double five for a 95 out.
James Wade isn't going to give him another go at it. He gets tops at the second attempt and leads by five legs at the break.
A long way back for Clayton now.
Wade 9-5 Clayton
John Part
Former PDC world champion on Sky Sports
Jonny won't want to see James Wade at double digits at the next break so he will be trying his utmost to get a break of throw.
Wade 9-5 Clayton
Big, big hold of throw for Jonny Clayton.
James Wade's accuracy on the bullseye costs him this time as he gets it when he only wanted the 25.
That means he only gets one dart at double but misses double four and Clayton comes back to hit double 16 and reduce the deficit again.
Wade 9-4 Clayton
Break chance for Jonny Clayton... but he misses double 16.
James Wade, still playing superbly, had left 24 with a fine 174 set-up.
Clayton was fired up but has the Englishman dampened his spirits again already?
Wade 8-4 Clayton
John Part
Former PDC world champion on Sky Sports
There is a special move-and-a-half and he knows it! That's exactly what Clayton needed.
Wade 8-4 Clayton
That might get Jonny Clayton going!
With James Wade threatening to break again, hitting a 180 to leave 84, Clayton nails a 161 checkout.
He lets out a roar after hitting the bullseye to seal it. He knows how important that could be!
Wade 8-3 Clayton
James Wade picks up where he left off before the break.
A pair of 140s put him in charge of the leg and he hits double 12 to finish it off.
Wade 7-3 Clayton
James Wade said he was fired up earlier in the tournament when complaining that he did not feature in television trailers for the quarter-finals.
"That was quite a proud moment for me, going up there and following it through," he said after beating Gian van Veen 16-13.
"I probably averaged better consistently than most players in here… but not one advertisement.”
Wade 7-3 Clayton
John Part
Former PDC world champion on Sky Sports
Jonny Clayton has done well to only be down four legs considering the level James Wade is performing at here.
Wade 7-3 Clayton
Jonny Clayton is averaging 101.32 but that is as much down to the fact James Wade is not even giving him a shot at double more often that not.
Wade is averaging 105.88 and hitting 63.6% of his darts at the outer ring. He'll take some stopping in this form.
Wade 7-3 Clayton
Jonny Clayton stops the rot to end the second session.
Double 10 for 'The Ferret' to seal a 14-dart hold but James Wade is in control after winning four of the five legs since the break.
Wade 7-2 Clayton
Rod Studd
Commentator on Sky Sports
James Wade, this ruthless machine will just carry on. Like some darting version of the terminator.
Wade 7-2 Clayton
He's threatening to run away with it now.
Tops again for James Wade as he takes his fourth leg on the spin.
One leg left in this second session and Jonny Clayton cannot afford to be broken again.
Wade 6-2 Clayton
James Wade is on it tonight!
He is averaging just shy of 110 and breaks again after being given another opening by Jonny Clayton.
With Wade needing tops, the Welshman is unable to take out 66 and the 2007 champion comes back to finish it off.