Graeme McDowell tipped Lowry to “create his own shadows” as the County Offaly man secured his maiden major crown.
McDowell revealed that the very first time they met, when he won the Irish Open as a 22-year-old amateur back in 2009, Lowry’s supreme confidence shone through.
“He can create his own shadows, he’s always been talented,” said McDowell of Lowry. “I remember the first day I met him, I’d just shot 61 at Baltray the week he won.
“And he came in having shot 62, and he didn’t even really introduce himself, he just came in and said ‘I can’t believe you beat me by one out there’. And I was like ‘who’s this kid?’.
“But we’ve become very good friends, I’ve always respected his game so much, because he’s very ballsy.
“He’s a phenomenal driver of the ball, and he’s one of the best chippers of the ball I’ve ever seen.
“He’s a great kid. To have an Irishman on top of the leaderboard is extra, extra special.”
Roared on by a sell-out crowd undeterred by the miserable conditions, Lowry carded a closing 72 to finish 15 under par and become the fifth Irish player to lift the Claret Jug after Fred Daly, Padraig Harrington, Darren Clarke and Rory McIlroy.
Lowry fought back tears as he mentioned his parents, adding: “They sacrificed so much for me when I was younger and I’m so happy that I can hand them this trophy tonight.
“My wife and my little girl, to have them here today is just extra special.
“Last but not least the volunteers and all the fans, thank you so much, this one’s for you.”
Messages of congratulations continued to flood in for Lowry after his victory.
Speaking after being presented with the Claret Jug on the 18th green, Lowry said: “What can I say? I just have so many people to thank, first of all the R&A for such a great event.
“To have an Open here on the island of Ireland and at Royal Portrush is amazing. I love this place and to be able to come here and play an Open was great.
“A lot of people in my backroom team; my coach Neil (Manchip), my caddie Bo, my management team – I definitely wouldn’t be standing here without them.”
Leinster Rugby passed on their congratulations.
The reaction began to pour in to congratulate Lowry on his triumph.
How the leaderboard stood at the end of The Open.
After firing his second shot to the edge of the green Lowry strode, arms aloft, down the fairway, soaking up the adulation of the fans who surged on to the turf behind their hero.
The scenes in Portrush were celebratory as Lowry took it all in.
Lowry embraced his family, hugged Graeme McDowell and then wrapped his arms around Padraig Harrington – his fellow Irish Champion Golfer.
Lowry two putted the 18th and took the rapturous reception from the spectators to win the 148th Open Championship.
Fleetwood claimed a nine-under 74 finish for second place.
Lowry was just off the green for two and celebrated with his caddie. The crowd were making an incredible noise.
Lowry crunched his tee shot on the 18th right down the middle of the fairway. Fleetwood follows suit.
Fowler claimed a six-under 74, which put him in a tie for sixth, while Koepka parred the last and finished in a tie for fourth with Westwood.
Two putts for each and Lowry heads to the 18th tee with a six-shot lead at The Open. The finish line is in sight.
Lowry was safely on to the green in two on the penultimate hole, while Fleetwood – from the rough – did likewise.
Lowry nailed his par putt on the 16th to lead by six shots with two to play as the crowd showed their support.
Fleetwood also carded a three for the hole.
Westwood could not sink his birdie putt on the last and finished with a 73 on six under – including four birdies and six bogeys – in fifth place.
Lowry hit it on to the front of the green at Calamity Corner, while Fleetwood also found the green – 30 foot left of the pin.
The weather played a big part in the final round at The Open with no player in the current top six under par for the day.
Lowry rolled the ball in from around six feet for a birdie on the 15th and took a six-shot lead with three holes to play.
Fleetwood held for par with three holes to go.
Finau tapped in for par on the last and headed to the clubhouse on seven under in a tie for third with Koepka.
Lowry finished with a bogey on the 14th as Fleetwood slipped further behind after dropping two shots leaving the Irishman to take a five-shot lead into the final four holes.
Fleetwood failed to reproduce Lowry’s bunker heroics from the 13th and he found himself in the long rough to the right of the green.
Lowry was in the thick stuff off the back, while – nine shots behind – Fowler moved back to six under after his first birdie in 11 holes.
Westwood narrowly missed his par putt on Calamity Corner and slipped back to six under alongside Brooks Koepka to leave Tony Finau in sole possession of third place, four behind Fleetwood.
It was Fleetwood that found the bunker on the next hole as Lowry was in the first cut.
The leader chipped the ball out of the sand to leave it two foot from the hole before sinking it for par, while Fleetwood finished from a few feet further back on the 13th.
Lowry overshot the green and found the bunker from the tee on the 13th, while Fleetwood was behind the green.
Lowry missed a birdie putt on the 12th as he settled for par as Fleetwood tapped in his birdie effort from close range to close the gap to four shots at the top.
Fleetwood found the fairway on the 12th but Lowry hit his shot into the rough from the tee.
Rose – who carded five bogeys in his first 11 holes – rolled in a birdie putt to return to four under on the 12th.
Fleetwood claimed par at the 11th but Lowry missed a seven-foot effort to drop another shot as his lead was reduced to five.
Willett struggled at the 13th before moving back to seven under, while Westwood joined him as they sat in a four-way tie for third.
Lowry and Fleetwood were safely on the green in two shots at the 11th but had long birdie putts to come.
Tony Finau of the United States just recorded bogey-birdie-bogey by the 13th hole to sit on seven under in a tie for fifth.
Lowry nailed his six-foot par putt at the 10th to bring his bogey run to an end but Fleetwood could not convert his effort from four feet and dropped to 10 under.
Swede Henrik Stenson moved to five under and into a tie for eighth thanks to a birdie putt on the 13th.
Lowry’s second shot into the 10th went over the back of the green, while Fleetwood found his ball in the rough but could only punch it out to set up a tricky up and down to save par.
Fleetwood drove into the rough on the 10th while Lowry was in the first cut.
Fowler struggled on the 10th as he dropped two shots to move down to seven under.
Westwood bogeyed the 11th to leave him back on nine under, while playing partner Willett also dropped a shot to fall to seven under.
Lowry suffered back-to-back bogeys as he signed for another five on the ninth, while Fleetwood closed the gap at the top of the leaderboard to five shots after hitting par.
Lowry and Fleetwood were both in the rough again after their tee shots at the ninth with the worsening conditions making life increasingly difficult.
Westwood claimed a birdie putt from 10 feet at the 10th to get back to 10 under and move back into third, a shot ahead of Fowler now.
Lowry dropped a shot on the eighth after his long-par putt pulled up short and Fleetwood also made a bogey in the rain to remain six shots further back.
The weather seemed to worsen still at Royal Portrush as the afternoon wore on.
Fleetwood’s tee shot at the eighth went a long way left, while Lowry’s ended up in the rough on the right before he lifted his second onto the back of the green with Fleetwood on the fairway.
Fowler holed a big par putt on the eighth from about 15 feet to stay at nine under and in a tie for third with Westwood.
Lowry moved six shots clear after the seventh as he holed a three-footer for birdie.
Meanwhile, Fleetwood produced a fine bunker escape and then putted for par.
Fleetwood found the deep rough off the tee at the seventh before he chopped the ball onto the fairway and then found a bunker, while Lowry was near the green after two shots.
Graeme McDowell got a big ovation as he made his way to the 18th green. The 2010 US Open champion finished four over par at his home Open Championship.
Leaderboard update as Lowry sit five shots clear at the top of the pack.
Fleetwood got his putter working and holed a tricky one from 10 feet to save par.
Lowry made the same for a two putt to remain five shots ahead as the weather worsened.
Scotland’s Robert MacIntyre signed off for a final-round 68 on his major debut – to currently sit in the top 15 on five under.
More rain comes down at Royal Portrush but leader Lowry battles through with his shot hitting the green on the par-three sixth, but Fleetwood leaves his tee shot short.
Westwood missed a birdie chance on the seventh and remains 10 under, while Danny Willett moved on to nine under after the sixth alongside Fowler.
Fleetwood recorded his first birdie of the day on the fifth, while Lowry sank a birdie putt from seven feet to hold onto his five-shot advantage at the top of the leaderboard.
US PGA champion Brooks Koepka suffered a poor start with four bogeys on the front nine before an eagle on the fifth moved him back up to seven under.
Lowry extended his lead at the top to five shots thanks to a birdie on the fourth, while Fleetwood remained on 11 under after his ball stopped just before the hole.
Lowry’s approach to the fourth left him with about 10 feet for birdie, while Fleetwood was about 30 yards from the pin after his second shot.
Lowry tapped in the third for par but Fleetwood missed from around five feet as the lead went back to four shots.
Westwood birdied the fifth and closed the gap on compatriot Fleetwood to one shot as he moved to 10 under.
Rose saved par on the par-four fourth to remain eight under.
Lowry just kept his drive on the green at the par-three third as Fleetwood sent his off to the right, while America’s Rickie Fowler claimed a third-straight birdie on the fourth to move up to nine under.
Lowry remains three shots ahead after another birdie chance went missing for Fleetwood, who responded well after finding the rough.
The leader went left with his drive and still left himself with a birdie chance – but his 20-foot putt just missed the right of the hole.
A bogey from Justin Rose on the third dropped him to eight under, while Westwood parred the fourth to remain a shot better off.
Lowry left his par putt about six feet short but kept his composure as he dropped just the one shot on the first.
Fleetwood could not pile the pressure on as his six footer for birdie missed and he made par to reduce the lead to three shots.
Lee Westwood chipped in for his second straight birdie. He is currently on nine under.
Lowry finds the bunker from his second shot. Fleetwood responds by sending his shot to within five feet.
Tommy Fleetwood teed off from the first as he looks to close the gap on Lowry at the top of the leaderboard.
Leader Shane Lowry tees off to the roaring crowds as his name is announced. His tee shot lands in the rough.