That's a super par save from Thriston Lawrence on the par-three 17th, negotiating a tricky chip shot from off the green and then putting for a three from 12 feet.

A par down the last for a 65, which will tie the best round of the week so far.

The par-five fourth is reachable in two but Scottie Scheffler sticks his second in the bunker.

It's a nice escape to seven feet and you expect him to take advantage but this time he can't make it count so settles for a par.

Dean Burmester will be hugely disappointed to bogey this hole with his length, as he overshot the green then missed a five-footer for par.

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Roars from the third green as Dan Brown buries his putt from 25 feet. Outstanding from the Englishman - and a reminder to playing partner Shane Lowry that he plans to stick around.

It's been pretty steady from his playing partner so far - but I guess no-risk golf is a good plan in this weather.

Anon.

Intriguing idea Anon, wish I had your name to give you credit.

And it would make our shifts a lot shorter if the leaders went out earlier!

Maybe the changing weathers are all part of the beauty of links golf.

After starting the third round with two bogeys Jason Day claws back a birdie at the par-five fourth.

A superb bunker shot leaves the Aussie with a simple putt from two feet which he sinks with ease.

We've mentioned Thriston Lawrence and Russell Henley already, but Sam Burns is another man who has made a bit of a surge up the leaderboard this afternoon.

The American bogeyed the first but has dropped only one more shot since then, to go with seven birdies, to move into the top 10.

More rough for Daniel Brown off the tee but more excellent recovery play from the Englishman as he crunches it out and finds the green.

He'll have 24 feet for birdie, while Shane Lowry will go first with a putt from 35 feet.

Onto the longest hole in Open history for Xander Schauffele and Patrick Cantlay - the par-five sixth measuring a fearsome 620 yards.

Not that it's bothering this duo as they thump their balls down the middle.

Jon Rahm was sensible, Marcel Siem not so much as he's gone at this tempting back flag but gone too long and into the rubbish, from where it takes him three shots just to get it back onto the green - before two putts for a six.

That's a massive blow for the German - and a rarity of a triple bogey on this hole without going in any of the bunkers!

Graeme Storm
Two-time European Tour winner on BBC Radio 5 Live

Justin did get a good read off Billy. He even had to move his marker so that Billy could putt, but a fantastic effort. It just stayed out and wasn’t meant to be but he settled himself down from the first hole.

The first hole he looked a little bit angry and unhappy with himself but now he seems to have picked himself back up, which is great to see.

Listen to BBC Radio 5 Live coverage via the link at the top of the page.

Gasps from the crowd after Justin Rose narrowly misses a birdie putt at the third. The ball sit on the lip of the hole, but simply refuses to drop.

Rose pushes his tongue into his cheek then taps in. Fine margins.

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Jon Rahm will happily take a par at the Postage Stamp, after just finding the green and not dicing with the tricky back flag, then rolling his 20-footer up to only about a foot to tap in.

Par's always acceptable here.

Russell - take a bow, son!

Henley's approach from 150 yards into the 12th green almost goes in for an eagle two, but settles a few inches from the cup and it's an tap-in birdie.

Up to four under now and a tie for second spot with Justin Rose and Dan Brown.

It may be that Patrick Cantlay is slicing his shots but he's keeping his round ticking over at the moment.

Fine distance judgement from 48 feet at the fifth green leaves him a simple par.

Xander Schauffele follows him in.

Solid birdie attempts from both Shane Lowry and Dan Brown at the second green.

Their putts roll by but it'll be steady pars for the pair.

Peter Scrivener
BBC Sport at Royal Troon

Those fans to the right of the fairway down these opening stretch of holes are seeing a lot more of Patrick Cantlay, who is battling a slice of the golf ball at the moment.

And that’s not great because Troon is a traditional out and back links course with the first six holes hugging the coastline and the Firth of Clyde out beyond the dunes.

Seven to 12 form a bit of a loop round the far end before players head straight for home from 13.

Gutsy from Daniel Brown down the second after backing up a bogey at the first by sending his drive at the second into some thick-looking rough.

He's made his bogey at the first but serves notice he isn't going anywhere by firing his second shot into the heart of the green at two.

Shane Lowry joins him - and will have 25 feet for birdie.

Image source, PA Media

Justin Rose comes up just short with a tricky putt on the first and ends up bogeying the hole.

Rose carded rounds of 69 and 68 and began the third round at five under but it's tough going out there at the moment.

Well, Xander Schauffele is the best on the PGA Tour for scrambling this season and he’s just showcased it again.

A decent chip out of the rough followed with a confident putt from 11 feet to save par.

As for Patrick Cantlay, he had his own visit to the long grass but also pencils a five on his card.

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There was a time not so long ago when you were not so confident of Scottie Scheffler making putts like this five-footer, but those days seem over.

Also the greens are pretty slow compared to the PGA Tour putting surfaces, and even more so in this rain. At three under he's just looming ominously now.