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Summary

  1. D. Johnson, Day, Spieth & Grace all joint lead on -4
  2. Holmes & Lowry card -1
  3. McIlroy, Rose & Poulter finish on +4
  4. Use the audio icon to listen

Live Reporting

By Mike Henson

All times stated are UK

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Before we head off for the hills though, lets have a look at the only stats that matter.

-4: Day, Johnson, Grace, Spieth

-1: Oosthuizen, Smith, Lowry, Holmes

+1: Snedeker, Romero, Stenson, Finau, Luiten, Reed

Surely it is one of those 14 names that will be carved onto the US Open trophy come tomorrow evening.

I say tomorrow, the prospect of an 18-hole play-off on Monday looms very large.

Join me tomorrow and we'll find out for certain. Bye for now.

Iain Carter

BBC golf correspondent on Radio 5 live sport

Jason, Justin, Branden and Jordan. All their christian names end in 'n' and with that it's time for us to go. We'll be back on Sunday from 22:00 BST with the final round.

That all means that the final pairing on the final round will be Jason Day and one of Branden Grace and Dustin Johnson - whoever of those two handed in their card first.

Jordan Spieth will be in the penultimate duo.

A poser from Iain Carter as he signs off the Radio 5 live commentary...

...what do all of our leaders have in common? Answer shortly...

Spieth ends on -4 and share of lead

Jordan Spieth smiles
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Right then. Patrick Reed's honour on the final green.

Twelve feet for a birdie, but that one is staying up for the evening.

Jordan Spieth is following along a similar line and he was certainly making notes on his playing partner's efforts.

Off it goes, on its way and.... Off line. Eighteen inches to deal with. Spieth calls in his caddy for a second opinion. "Right centre?" Right centre." All agreed and down she goes.

Reed taps in and is one over overnight after a six over round.

Jay Townsend

Former American professional golfer on BBC Radio 5 live

I think you've got to be under par at the close of today to be in with a chance of winning on Sunday. Let's not forget the winner often comes out of the final group.

Jordan Spieth has a long, deep and meaningful with his caddy as the pair consider his third shot into the last green.

It's good to talk.

One hundred and twenty seven yards to the pin turns to about seven feet as he nails his short iron perfectly.

Sublime. And he will have his next putt for the solo overnight lead.

Grace and Johnson finish on -4

Branden Grace walks along the course
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Dustin Johnson's second actually found the sand, but a graceful sweep with his third puts him up to within 20 feet.

Branden Grace's birdie attempt from way down town is good but not quite there.

Johnson's turn to have a bash. Agonising. Just short. Both sign off with pars.

Dustin Johnson walks along the fairway
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Dustin Johnson's second at the par-five last is not quite long enough. It might be alright though, it all depends on the lie.

Branden Grace, who has taken a sideways swipe to rescue a wayward tee shot and get within 154 yards, pitches up close the flag. One of the gullies on the green partially abducts his ball, dragging it off towards the sand, but the brakes kick in just in time to stay on the green.

Spieth is safely off the tee behind them. I believe he has found the fairway.

Jay Townsend

Former American professional golfer on BBC Radio 5 live

Every player inside the top 10 is under 32 and that means golf is in a great state.

Spieth stays on -4

Jordan Spieth allows himself a hop of frustration.

His birdie putt on 17, skirts around the rim, but doesn't take a final turn south and down.

He will have to make do with a par.

Jay Townsend

Former American professional golfer on BBC Radio 5 live

Jason Day suffering during his third round
Getty Images

Jason Day provided one of the greatest performances I've ever seen. It reminded me of 2008 when Tiger Woods won the US Open with a broken leg. Golf is a game but I think it was a heroic effort.

Jordan Spieth chances his arm on the par-three 17th and has come up triple cherries.

Attacking the front bunker, he clears the sand by a fine margin and gets his reward as the ball hops on and to within 10 feet.

A birdie chance and if he converts he is the sole leader.

Jay Townsend

Former American professional golfer on BBC Radio 5 live

Spieth is fighting tooth and nail when he doesn't have his best game today. I bet he'll be on the range tonight trying to work this out.

"Be lucky" shouts Branden Grace after his tee shot on 18. He will have to wait and see whether his instruction has been obeyed. The ball is off wide somewhere. The secret will all be in the lie.

Dustin Johnson's tee shot - a particularly fine creature - is plum centre. Lovely stuff.

Jordan Spieth holds his putter
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Argh!

Jordan Spieth leaves another shot out on the course as his birdie putt refuses to fall. He could have has a comfy cushion of a lead to rest on. Only a par.

Dustin Johnson has his par at 17. Brandan Grace has a better chance of birdie though. His 30-footer takes a good look the hole but decides not to buy.

No change at the top.

Jordan Spieth hits a big drive
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Jordan Spieth trying to read the runes of the 16th green, heading up a slope and dealing with a right-to-left break.

And he should have given it a little more muscle. The slope gets its claws into the ball as its momentum stalls and Spieth will have a tricky eight feet or so for birdie.

Onto the par-three 17 and Branden Grace walks the tightrope between over-eager and too conservative perfectly.

His tee shot stays well clear of the bunker guarding the front pin position, but nestles up nicely 20 feet away.

Dustin Johnson is more erratic. His ball rolls back down onto the lower deck of the two-tier green.

Dustin Johnson plays a shot on the fairway
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Dustin Johnson goes all around the houses to try and land his eagle putt on 16, hitting up the slope and then finding that there was not the borrow that he hoped there was in that.

He is taking an age to line up his six-foot birdie putt. It would put him into the lead solo-style. Jordan Spieth and Patrick Reed are being kept waiting on the tee.

The ball dribbles wide when he does come to take on the putt. Just the par then.

Branden Grace has his own chance for a birdie. His putt stubbornly refuses to break though and we are as you were at the top.

As they depart, Spieth has just bashed a fine drive up to within 20 feet. That is a slim eagle chance for him.

Spieth moves to -4, Reed to level par

Jordan Spieth with fans
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And then there were four.

Jordan Spieth is back into a share of the lead with a birdie on the par-three 15th.

Playing partner and fellow overnight leader Patrick Reed has had an iffy day, but he makes his birdie, shooting straight down Spieth's line to move back to level par overall.

Holmes done on -1

Dustin Johnson hits his tee shot
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Dustin Johnson plucks his driver out of the bag on the 372 yard par-four 16. It looks a little bit aggressive. It does skip though, but sticks on the green just about at the back.

JB Holmes meanwhile is scrapping around for a par at 18th as his third shot from the hay at the back of the green rolls all the way through and back into a bunker.

In the end it takes a gutsy ten-footer to preserve his one-under status.

Jay Townsend

Former American professional golfer on BBC Radio 5 live

Jason Day has never held a 54-hole lead in a major. He is in the clubhouse tied for the lead on four under.

Grace to -4 and share of the lead

Branden Grace celebrates
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Branden Grace's arms are swinging a little less freely.

But the South African gives his birdie putt enough of a poke to stuff it away on the 15th.

We have a three-way tie at the top of the leaderboard with Dustin Johnson and Jason Day also residing on four under.

Branden Grace has tickled a lovely tee-shot to within five feet at the par-three 15th.

Jordan Spieth has suffered a bad break on 14 with his approach going walkabout after he had placed it carefully close to the pin.

The young American rescues his par with a bold putter that rattles right in,

JB Holmes is too strong for his own good on the par-five 18th, banging a fairway wood though the back of the green with his second shot.

It was right on line as well. Unlucky.

Shane Lowry after a level-par 70: "The greens are not 100% but the golf course is still a good golf course. When I got here on Monday and played 36 holes practise. I thought it was a bit funky but the more I play it the more I like it. Most of the shots are there in front of you."

Smoke continues to move towards Chambers Bay
Reuters

The Icelandic ash cloud of 2010.

The Hemel Hempstead depot cloud of 2005. Might the Chambers Bay fug of 2015 be one of the all-time great clouds?

Promising form and colour from the new comer.

Iain Carter

BBC golf correspondent on Radio 5 live sport

What a brave performance. The story of the day. Jason Day with a brilliant birdie-birdie finish to get to four under par and a share of the lead. We didn't even think he would be playing today.

Day up to -4 and share of lead

Pin a medal on that man's chest.

Jason Day, who has been swallowing and blinking like a new-born pup for most of the day as he keeps his vertigo under control, is now joint leader.

His birdie on the last bring the 6,000-strong grandstand to their feet and moves him up alongside Dustin Johnson at the top of the leaderboard.

Johnson is only heading south at the moment as well.

Holmes back to -1

Jason Day waves
Reuters

Jason Day with an absolute peach of a shot on 18, finding the sweet spot in the centre of the club and a helpful slope. He will have a great chance to pull up alongside leader Dustin Johnson with a birdie chance from five foot to come,

Branden Grace makes par on 14 with a long worming putt. He stays at three under.

JB Holmes gives a shot back on 17 to move back to one under though.

Branden Grace has dropped a shot on 13th. It is all going off.

So let's take a moment and have a little mini run-down on what's going on:

-4: D Johnson

-3: Day, Grace, Speith.

-2: Holmes

-1: Oosthuizen, Smith Lowry, Luiten

And they are the only men under par for the tournament,

Lowry done on -1

Shane Lowry reacts after his putt
AP

Ireland's Shane Lowry is done and dusted with a quietly effective round keeping him right in the hunt.

Level par for the day and one under overall. That is a platform for a final-day push if ever I saw one.

Jay Townsend

Former American professional golfer on BBC Radio 5 live

It's a great course for a major championship because you don't know what's going to happen next. You might not like the course but you cannot deny the excitement.

Holmes to -2

JB Holmes in action
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JB Holmes, welcome to the equation.

The American, who like Jason Day drove the 370-yard green and watched his ball trickle into the sand, splashes out from the greenside bunker at 16, running the ball up the hill and then watching as it rolls back down and right onto the bullseye for an eagle two.

Sensational shot and the frat-boy shouters in the crowd enjoyed that. Holmes is two under and hot on the heels of the leaders.

Chris Jones

BBC Radio 5 live commentator at Chambers Bay

This is turning into a famously gutsy effort by Jason Day.

Johnson back to -4, Day to -3

Dustin Johnson hits a shot
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It is getting mighty cramped in here.

Dustin Johnson comes pinging back to the pack with a double bogey on the 13th.

A massive roar over on 17 where Jason Day's ball as trickled down the pipe for a birdie. He is now back to three under and within a shot of Johnson and Branden Grace.

Jay Townsend

Former American professional golfer on BBC Radio 5 live

The pressure is getting greater. Nothing is ever straightforward. That's why it is compelling watching.

Dustin Johnson is tapping around the 13th green to little effect.

He now faces a tricky seven or eight footer downhill for a bogey.

Playing partner Branden Grace misses his own par putt as well.

Jason Day hits a tee shot
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Jason Day is soldiering on in fine style. He steps back from his tee shot at the par-three 17th apparently suffering from some of the effects of his vertigo.

When he does hit it, it is a beat, dotting down for a 12-foot birdie putt. The Australian has to take a knee as he retrieves his tee out of the ground.

Jordan Spieth is off 12 with a par by the way,

Leader Dustin Johnson is in a bit of bother on 13th. His third from the bunker flops tamely into the middle of the green and he has some considerable lumps and bumps to negotiate if he is to get off here with a par.