Jordan Spieth can't sink it though as it rolls round the face of the hole and stays up.

He sticks at one over par.

Dan Brown's tee shot on the par-four third gets a decent hop on it - straight into a fairway bunker.

Hopefully for him, it's in better shape than Matt Fitzpatrick's ball on the seventh. He's right up against the face, which must be six feet high. Playing out sideways into the rough is all he can achieve from there.

One for your Spotted at Troon card. Scottie Scheffler dropping his club after a misjudgement flunks his second shot into a greenside bunker.

What a save again though - splashing out to inside a foot.

Bravery from Jordan Spieth too as he attacks the green from some fescue and brings up an eight-foot birdie chance.

Image source, PA Media

Another confident putt from Xander Schauffele and he's back to -2 with consecutive birdies.

He's followed in by Patrick Cantlay who is three under for the day, one under for the tournament.

Meanwhile, Tiger Woods gets a real spot of luck as his tee shot holds on a sprinkler and he gets a free drop - and a birdie putt.

He rolls it too far wide but will take a par rather than scrambling around in the sand.

Unlike in the first round, no fireworks on the front nine for Brooks Koepka today.

Just the one birdie so far and he reaches the turn in 38.

Dan Brown left himself 18 feet for birdie on the second and couldn't quite sink it, but it's another solid par for the co-leader.

Image source, Getty Images

Playing alongside Shane Lowry, Matt Fitzpatrick goes left with his third shot to the sixth and ends up with a double-bogey seven.

Back to two over.

Richard Winton
BBC Scotland at Royal Troon

Just been having a blether with a marshal out on the second tee. He reckons the vast majority of players are taking mid-irons and laying up.

"We get this kind of wind twice a year," he says of the southerly breeze that the morning starters have in their faces.

Mention to him that it's supposed to get stronger later in the day and he grimaces and makes that sooking-in-air noise you usually hear from a mechanic when you take your car to the garage.

On Tiger and co traipse to Royal Troon's most iconic hole.

Ken has some tips for how to navigate it.

Disappointment for Shane Lowry as a presentable birdie try on the sixth stays up. Didn't hit it hard enough.

OK, par-five sixth, time to fleece it.

Well, you'd think so but Scottie Scheffler's opening shot comes up way short at just 220 yards - and 400 still to go.

The world number one struggled with distance yesterday, saying: "I flighted it pretty good - it's my 205 shot and it went 155."

If Scheffler's radar is off by 50 yards, maybe there is indeed hope for the rest of the field.

Image source, Getty Images

Sixty five feet from the back of the green for Tiger Woods and he makes the pace judgement look effortless, rolling it down close for save par.

He's followed in by Patrick Cantlay but Xander Schauffele finds his touch and drills in from 15 feet for birdie.

Shane Lowry has dispensed with his jacket and is now in a white long-sleeved shirt.

His second shot to the long par-five sixth went right, but he's recovered brilliantly and will get a look at a 10-footer for birdie.

Scottie Scheffler had done the hard work but then pushes his putt past the fifth cup and immediately gifts a shot back to the hole.

Errancy off the tee cost him there and it does the same for Cameron Young.

Jordan Spieth happy to leave with an unconcerned par.

The bunker on the Postage Stamp has gobbled up many a player over the past 24 hours, but Brooks Koepka negotiates it well and knocks his escape from the sand to within a couple of feet.

Par saved. Koepka two over for the day.

Marcel Siem and Ewen Ferguson are back in the hutch. The pair were first out at 06:35 this morning and for the German it was a round of two halves at Troon, or more accurately, an eight and a 10.

Five birdies in the first eight holes pushed him up to three under. Five bogeys on his way home have left him back where he started the day.

Scotsman Ferguson finished off with a birdie at the last but at five over will be sweating on the cut. The top 70 and ties will play the final two rounds. At the moment that's those at three over and better but if the forecast wind doth blow, then he may still sneak in.

A six on six for Collin Morikawa, who is punished for finding the bunker with his third shot on the par five.

Richard Winton
BBC Scotland at Royal Troon

One thing you might not see on the TV coverage of the Postage Stamp is the camera that whizzes up and down the full length of the hole on a giant pulley.

Starting at a tower just behind the grandstand at the tee, it slides gracefully all the way along to another tower beyond the green, making an enjoyable hum as it does so.

Guaranteed some of us would crash a panicked tee shot into it...

Brooks Koepka is in the bunker at eight.

Ken explains why that's a bad move...

Dan Brown's second to the first hole found the sand, but the 29-year-old Open debutant recovers well to par the first.