Allen closing in on the lead here. 50-7

Fans young and old are enjoying all the action.

Image source, Sarah Parker

Kyren Wilson misses this black off the spot to bring Mark Allen in for what looks an inviting table. 6-7

Image source, .

And we are back in frame five. Two frames each.

John Parrott
1991 world champion on BBC Two

Allen got away with one there in that frame. What was Kyren doing with that straight pink? He nearly missed the jaws.

Callum Rowe: This is the most fascinating Masters final in years. So difficult to describe. Both players look like they’ve been in major finals for years.

Steve Davis
Six-time UK champion on BBC Two

Kyren hits the ball too hard under pressure sometimes. What that missed pink does for his confidence for the rest of the match is a big question now. It can be debilitating. And it will boost his opponent.

There was some fantastic snooker (and some not fantastic snooker) played by both players in that epic fourth frame. Check out this stunning pot by Kyren Wilson, although he went on to lose the frame.

Watch as Mark Allen went for the double pot and almost pulled it off in the fourth frame.

We have a few minutes without any action, so let's catch up with some of the shots from that epic 45-minute frame.

Will Kyren Wilson be haunted by that missed pink in frame four? That would have given him a 3-1 lead. But Wilson then leaves the black on, it is straight and Allen sinks it to edge a hard-fought 45-minute frame.

We are back where we started, all level. Two frames each at the mid-session interval.

Mark Allen pots the pink ball and we have a black-ball frame. 51-49. Whoever pots the last ball will take the longest frame of the tournament.

That should be 3-1 to Wilson at the break. He only needs the pink, he gives it far too much welly and it stays out. A bad, bad miss.

Dennis Taylor
1985 world champion on BBC Two

Believe it or not, this is now the longest frame of the tournament, beating a frame in the John Higgins against Anthony McGill match.

Both players feeling the tension out there. Allen holds a 45-37 lead with only the green, brown, blue, pink and black on the table. This is the last frame before a mid-session interval. It has taken more than 40 minutes already. And probably a lot more to come.

Image source, .

We have had wasp distractions and now mobile phone distractions. Three times a phone goes off as Kyren Wilson is about to shoot. Someone is escorted from the arena, but Wilson shouts for the person involved to be allowed back into the arena at the end of the frame.

Dennis Taylor
1985 world champion on BBC Two

In a final you always set your stall out to win the first session. It is a very tense frame before they go into the interval here. It may be the best of 19, but both players are missing balls they wouldn't normally miss because they know how crucial it is early on.

A missed yellow with the rest from Mark Allen gifts this table to Kyren wilson.

Image source, .

Stephen Hendry
Seven-time world champion on BBC Two

This is the first real scrappy frame Mark Allen has been involved in during this tournament that I can think of. There certainly weren't any in his games against John Higgins and Ronnie O'Sullivan.

Meanwhile, over in the media room...

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