Have you seen anything like this! Louis Oosthuizen will almost certainly feature on the 'What happened next?' section on Question of Sport.

The South African becomes the third man to ace the par-three 16th today - but it is nowhere near as clean as the efforts by Shane Lowry or Davis Love III.

Oosthuizen's ball rolls towards the right side of the flag, bumps JB Holmes' ball out the way, changing direction to disappear down the drain. Remarkable.

"It's like playing billiards," quips Paul Azinger in the BBC comms box.

Lee Westwood has around 20ft for birdie on 12, I can tell you Danny Willett has five feet left for par...Westwood can't make it. He's playing well but can't quite find fifth gear. Willett now, into the cup.

What does he do now? Stick or twist? he needs to get rolling.

Image source, BBC Sport

Aged 22 Spieth would be the youngest three-time major winner. He'd beat Nicklaus (23), Woods (24) and McIlroy (25).

Iain Carter
BBC golf correspondent at Augusta National

"Spieth has grabbed this Green Jacket by the coattails and is cruising to this Masters title.

"It is just incredible. There was no doubt in the slightest that putt that was going in."

The fat lady is singing.

All credit to Jordan Spieth, he stuck to his guns and disagreed with his caddie on nine, lamped a ball into the green and drained a colossal putt to pretty much tie this up.

Get the Green Jacket out guys, you already know the measurements.

Double bogey, bogey, par for Dustin Johnson on 11 this week and he's in trouble again.

"Oh go right, go way right," he says. His ball is in the trees and on this hole, that is likely to spell out B-O-G-E-Y.

Iain Carter
BBC golf correspondent at Augusta National

"This is a sensational performance from the defending champion."

Image source, Getty Images

"I'm calling you out on that," says Jordan Spieth to caddie Michael Greller. 

The leader is firm in making his club and shot choice so his bag man stands down. Who's right? Spieth of course, solid strike into the heart of the green.

Danny Willett somehow has a birdie putt on 10, not many people get such a chance but he passes up. Straight up off the putt, his movement told us he'd got that read wrong. Par though, many will do worse. 

Lee Westwood won't. He's alongside Willett and walks off with a four too. A bludgeon of a shot from the trees and a long snaking putt leaves a tap in. That's solid golf.

Image source, Getty Images

John Murray
BBC Radio 5 live sports extra commentator at Augusta National

"We were here last year and it feels as though Jordan Spieth is even more in control than last year."

Peter Alliss
BBC Sport commentator live on BBC Two at Augusta

"It's impressive, but it's not impressive to watch. It's not thundering drives and wonderful irons. Spieth makes umpteen minor cock-ups, but every time he manages to make a putt. It's like listening to Willie Nelson sing."

Soren Kjeldsen just sent a tee shot into orbit on 12 and landed it right here. Nice work.

Image source, .

He converts and goes back to one under. Another man not going away, hanging in there. They all need the kingpin to drop shots though and it just doesn't look like happening.

Jason Day's hopes are evaporating into the Augusta air. He goes within a fraction of par on 10 but it just won't drop. The groans are deafening from this crowd. The world number one is done for surely?

Image source, BBC Sport

Smylie Kaufman is sinking and he misses birdie on a par five, stays at even. Paul Casey summoned his inner magician from the sand on 16 and leaves a par-putt of short work, in it goes. 

What about Lee Westwood? Be right" he asks as he lampoons his ball from the pine needles. Solid shot on this horror hole, should two-putt for par.

-6 Spieth (after 8)

-2: Willett (10),

-1: D Johnson (8) Kjeldsen (10)

Par: Fitzpatrick (18), Casey (16), Kjeldsen (11), Westwood (10) Day (9) Kaufman (8)

+1: Holmes (14) Rose (13)Snedeker (11)

Spieth is moving closer to Jack Nicklaus’ record. The great one was 25 when he won his second title in 1965.

Image source, BBC Sport

A critical moment here for Jordan Spieth. His third stroke on a par-five, I'm sure it will yield birdie as this is just a short chip form the edge of the green. Get it in the bin lid around the flag and take a tap-in...he will. Fine touch. Spieth is going four clear.

The 11th hole. There are many terms you could use to sum it up, many of them are not fit for broadcast.

A dire drag, it kills player after player off. Soren Kjeldsen is the latest to lose a blow. His chip from real trouble leaves a makeable putt but he cannot make it, a tiny bit out.

Jay Townsend
Former American professional golfer on BBC Radio 5 live sports extra

"I'm hearing the fat lady starting to warm up after that shot from Jordan Spieth."