Justin Thomas made history by becoming the youngest man to record a sub-60 round on the PGA Tour after carding a magnificent 11 under par 59 on the opening day of the Sony Open in Hawaii.
The 23-year-old American registered two eagles, eight birdies and a solitary bogey in Honolulu, as he became only the seventh man to break 60 on the PGA Tour.
Al Geiberger, Chip Beck, David Duval, Paul Goydos, Stuart Appleby and Jim Furyk are the other players to have achieved a below 60 round. Duval had previously been the youngest man to hold the record after managing the feat in 1999, aged 27.
Thomas, who last week emerged victorious in the SBS Tournament of Champions, also in Hawaii, sits three shots clear of nearest challenger Hudson Swafford, who made nine birdies and a bogey in his 62.
Reflecting on a remarkable last few days, Thomas told PGA Tour Radio: "It's been a good week or so now. It was a fun day out there, it was the most I've ever had it rolling.
"My birdies were all very easy and I just had a lot of good luck and kept leaving it in the right spots.
"I didn't drive it as well on the back nine but I got down to the magic number and that's all that matters."
The world number 12 spectacularly chipped in from a bunker on the 10th hole, his first, as he started and ended the day with eagles.
His only bogey came on his second hole but he entered the turn in 29 with five birdies in his next seven holes while he also picked up shots on the first, second and fourth before a near 15ft putt sealed his history-making moment.
He said: "When I chipped in on 10 on my first hole for eagle, you can't really think of a much better start than that. Once I turned on that front nine everything was coming pretty easy up until then so it was just trying to ride the momentum and keep trying to make birdies.
"When I was on the 18th fairway I started thinking about 59. I don't know whether that's a good or a bad thing but I just knew I was driving it well and if you drive it well, I hear you can make a lot of birdies."
South Africa's Rory Sabbatini is on seven under, while Scotland's Russell Knox is among eight players a shot further back.
World number five Jordan Spieth, the highest ranked player participating at Waialae Country Club this week, is six shots adrift of Thomas after a round of 65, with six birdies and a bogey.
Why are you making commenting on The Herald only available to subscribers?
It should have been a safe space for informed debate, somewhere for readers to discuss issues around the biggest stories of the day, but all too often the below the line comments on most websites have become bogged down by off-topic discussions and abuse.
heraldscotland.com is tackling this problem by allowing only subscribers to comment.
We are doing this to improve the experience for our loyal readers and we believe it will reduce the ability of trolls and troublemakers, who occasionally find their way onto our site, to abuse our journalists and readers. We also hope it will help the comments section fulfil its promise as a part of Scotland's conversation with itself.
We are lucky at The Herald. We are read by an informed, educated readership who can add their knowledge and insights to our stories.
That is invaluable.
We are making the subscriber-only change to support our valued readers, who tell us they don't want the site cluttered up with irrelevant comments, untruths and abuse.
In the past, the journalist’s job was to collect and distribute information to the audience. Technology means that readers can shape a discussion. We look forward to hearing from you on heraldscotland.com
Comments & Moderation
Readers’ comments: You are personally liable for the content of any comments you upload to this website, so please act responsibly. We do not pre-moderate or monitor readers’ comments appearing on our websites, but we do post-moderate in response to complaints we receive or otherwise when a potential problem comes to our attention. You can make a complaint by using the ‘report this post’ link . We may then apply our discretion under the user terms to amend or delete comments.
Post moderation is undertaken full-time 9am-6pm on weekdays, and on a part-time basis outwith those hours.
Read the rules here