Not the start two-time Open champion Padraig Harrington was hoping for as he makes a bogey on the first - having had a bit of a wait back on the tee which will not have impressed him as a player who likes to get on with things.

Harrington claimed back-to-back Claret Jugs here at Royal Brikdale, with one of the best shots in the competitions' history on the 71st hole with his five-wood through the wind setting him to defend his title.

Oliver Wilson
Former Ryder Cup player on BBC Radio 5 Live

When you see some of the best chippers in the game, their left foot can move. That one looked liked it moved more than normal for Justin Rose.

An unfortunate bogey from a decent tee shot. It looks like he is not quite comfortable. The result of that is his approach play has been poor and there's too much work to do around the greens.

Image source, Getty Images

Justin Rose and Viktor Hovland both find themselves at the bottom of the slope to the right of the 15th green.

Hovland chips to about 12 feet and rolls in the putt to save par.

Rose has a slightly longer par putt but it's just not happening for Justin today. He's at six over and there are only two players below him on the leaderboard at the moment.

American Russell Henley has registered five straight pars since his birdie at the 10th and is even for the day with three holes left for this group to play in round one.

Robert MacIntyre's not the only Scot mixing it at the top of the Open leaderboard, as Jack McDonald gets to three under after 10 holes in what is his second appearance in The Open.

McDonald picked up his fourth birdie of the day at the 10th against just one bogey to move nicely into a tie for fourth place - alongside compatriot MacIntyre.

Joakim Lagergren reached for The Open for the first time courtesy of his top 25 finish on the final Race to Dubai rankings.

And the Swede has made a pretty decent debut today as he walks off the 18th with a two-under 68 in the bag.

Image source, Getty Images

Angel Ayora was out early this morning, sporting attire featuring images of Seve Ballesteros to mark the 50th anniversary of his fellow Spaniard's famous chip on the last at Royal Birkdale in 1976.

That led to a birdie as the 19-year-old finished joint second to announce himself on the world stage.

Seve would, of course, go on to win the Claret Jug three times and be at the forefront of the European rise through the 1980s.

Back to Ayora, who is managed by Seve's oldest son Javier and is making his Open debut... he was one under after nine holes but had a mini-disaster down the last, posting a double-bogey six.

But that is three shots better than his amateur playing partner Mateo Pulcini of Argentina, who was six over after 12 (perhaps he stayed up to watch the World Cup semi-final...) but a birdie down the last might make his lunch taste a little better.

In case you missed it, Robert MacIntyre was out early and lit up Birkdale for much of his opening round.

He's in prime position after day one.

Oliver Wilson
Former Ryder Cup player on BBC Radio 5 Live

Justin Rose is definitely not having a good day.

I spoke to his team early in the week and they were very aware of the situation. The first three holes were really solid and it has fallen apart. He started missing green after green and it has slid away.

He loves the majors. Very few players in the world of golf, real elite players excel at the top of the major leaderboards, and he is one of them. I certainly wouldn't rule him out, but time catches up on everyone.

Tommy Fleetwood just misses a long birdie putt to hit the bounce back on 13, so has to settle for par there but that was a bit more like it from the Englishman.

His round's on a bit of a tightrope right now, he could press to try and pick up a couple of birdes, but that runs the risk of adding a few more bogeys that could put him behind the eight ball already.

An interesting home stretch coming up.

The long par-five 14th is playing more than 600 yards and will be on the fringes of being reached in two by the vast majority of players today.

Viktor Hovland has 10 feet left for birdie to get back under par for his round, but his putt clips the right side of the cup and stays up.

Justin Rose is 20 feet away but his birdie try doesn't drop either.

Pars all round for this group.

Our marquee groups are taking on the new 15th hole at Royal Birkdale shortly, so let's take a look at it with our Ken Brown.

Alex Smalley doesn't give much away while he plots his way around the course, but he's probably a tad disappointed with his approach at the par-four 16th.

It's on the weak side and he's left with a 45-footer, which he lags up and knocks in for par.

No damage there. A four-four finish will give the world number 44 a sparkling opening round of 64.

Jonathan Jurejko
BBC Sport golf reporter at Royal Birkdale

You could say Dan Brown has had a smoking round today. Turns out he literally has.

The 31-year-old Yorkshireman likes a crafty fag on his way round the course and says he got through "seven or eight" in his opening 66.

Brown sounded a bit sheepish in his post-round presser about his habit, but he says it helps settle his nerves and has worked a treat so far.

Matthew Hobbs
BBC Sport journalist at Royal Birkdale

Image source, Getty Images

Dan Brown hit the headlines at Royal Troon in 2024 when he held the overall lead at the end of Thursday after shooting a bogey-free 65.

He's followed that up with an impressive 66 today and after his round he was asked about his penchant for smoking whilst playing.

When asked how many cigarettes he had smoked today, he replied: "Sorry, mom. I'm probably on like seven or eight a round, I would say. Stress levels go up, then probably the more I end up having.

"My dad actually used to smoke, and I always told him when I was a kid to stop smoking and then he did stop and then I ended up starting."

Ryan Gerard is in a spot of trouble off the back of the 11th green. He plays a lovely chip, landing the ball on the bank and using the contours to set up a five-footer for par.

But he's missed it! Deary me. His first bogey of the day and he drops two back of Alex Smalley.

Image source, PA Media

MJ Daffue jumps aboard the birdie train, picking up shots on successive holes from the sixth to the eighth.

The 37-year-old is making his bow at The Open, and as things stand, it's one he'll remember for a long time.

Catriona Matthew
Captain of Team Europe at the 2019 & 2021 Solheim Cup on BBC Radio 5 Live

It's as if Tommy Fleetwood has not got hold of the wind yet. He needs to try and get a measure of it.

Tyrrell Hatton has a birdie putt from just off the green. It's a slow one and his ball applies the brakes a few inches shy of the cup.

Still a decent par from where he was off the tee and no ground lost on either of his playing partners.

It's no surprise to see Scottie Scheffler challenging near the top of the leaderboard when you see his scoring average over the past five Opens.

Interesting to see though that he's scored exactly the same as Xander Schauffele - with Jon Rahm and Rory McIlroy not too far behind.