Russell Knox holed two mammoth putts in succession to sensationally pip Ryan Fox to glory at the Irish Open.
Knox, whose only previous European Tour win came at the WGC-HSBC Champions in 2015, drained a putt from around 40 feet on the 72nd hole to complete a round of 66 and join Fox at 14 under.
After Fox had failed to convert a short birdie chance on the last hole of regulation play, Knox then remarkably found the target from long range once again when the pair returned to the 18th in a play-off.
Fox was again much closer in two following a huge drive, but his putt for a three lipped out, meaning Knox could celebrate a win that significantly boosts his hopes of making Europe's Ryder Cup team.
The Scot finished tied second last week in the French Open at Le Golf National - the course that will host the Ryder Cup in September.
"Obviously I needed a stretch like this," said Knox regarding his hopes of making Thomas Bjorn's team.
"To make the Ryder Cup team you have to win tournaments. This is a heck of a start, but I feel like I've got a lot more to go.
"It's tough to describe how amazing this feels."
Knox also qualifies for The Open as a result of his triumph, along with Zander Lombard and Andy Sullivan, who finished joint-sixth and were the highest-placed players not already in the field for Carnoustie.
Fox shot 68 to Knox's 66, with Jorge Campillo going round in 65 to finish one off the pace at 13 under.
Campillo may have managed the lowest score on Sunday, but the performance of the day surely came from Jon Rahm, who managed a six-under 66 - rounded off with four birdies in succession - despite registering a triple-bogey seven on the second.
Erik van Rooyen led by four overnight but fell away with a final-round 74. Playing partner Joakim Lagergren fared even worse, shooting 75.
|Brazil captain Neymar pleased with stern Uruguay test|
|Ravens´ Flacco doubtful, Jackson could start|
|Richarlison: I want to be at the Copa America|
|Tabarez buoyed by inexperienced Uruguay|
|Howell fires 64 again to extend RSM Classic lead|
|I´m proud of them - Giggs still upbeat despite Denmark defeat|
|Mancini ´very sorry´ for Ronaldo absence|
|Neymar clinches anything-but-friendly win for Brazil over Uruguay|
|Cipriani-inspired Gloucester thrash Tigers|
|Djokovic makes it three wins from three at ATP Finals|
|Germany relegated from Nations League top tier to cap miserable 2018|
|Fulham will back Ranieri in January transfer window if required|
|Brazil 1 Uruguay 0: Neymar penalty settles tight contest|
|Netherlands 2 France 0: Wijnaldum & Depay decisive as Germany are relegated|
|Wales 1 Denmark 2: Jorgensen and Braithwaite seal Nations League promotion|
|Oxlade-Chamberlain targeting early return|
|New Zealand-born Aki will ´relish´ facing All Blacks – Marmion|
|Portugal cannot focus on absent Ronaldo - Santos|
|Ramsey reiterates he wants to stay with Jaguars despite cryptic tweet|
|We tried to hit a home run and it didn´t work out - D´Antoni explains Carmelo exit|
|West Ham´s Zabaleta backs Premier League´s VAR introduction|
|Southgate eyes winning end to England´s ´brilliant year´|
|Patient Zverev seizes opportunity to make amends at ATP Finals|
|Rodgers: Packers still believe they can make playoffs|
|Mahomes hoping to ketchup to Heinz´s touchdown target|
|Ranieri tells Fulham fans not to expect repeat of Leicester ´fairytale´|
|Brown to leave role as RFU chief executive|
|Croatia star Rakitic ruled out of England clash|
|Capital gains for Zverev as he secures last-four spot in London|
|Sancho rise continues with Player of the Month award|
|Jones-Buchanan, Ablett and Briscoe sign new Rhinos deals|
|Root leads from the front as aggressive England assume control|
|Croatia´s Lovren antagonises Ramos and ´rude´ Spain|
|Rakitic has ´enormous respect´ for England ahead of Nations League decider|
|Ireland make flanker switch with Leavy out of All Blacks clash|
|Pakistan rip through Black Caps in Abu Dhabi|
|WATCH: Barcelona mark 15-year anniversary of Messi´s first match|
|Sterling, that you? - Walker uses falling fan to poke fun at England team-mate|
|Fleetwood applies pressure on Molinari, Wallace leads in Dubai|
|Don´t talk to me about VAR – Rakitic not over World Cup final loss|
|Van Dijk leadership essential for Liverpool – Wijnaldum|
|Dalic: Croatia´s bench was ready to stop Spain!|
|Sublime Root century gives England imposing lead|
|Vinicius appreciates Solari influence at Real Madrid|
|Havertz would suit Bayern Munich – Kimmich|
|Wilder: Roach recruitment a sign of Fury nerves|
|Ranieri targets defensive improvements at failing Fulham|
|PSG close investigation into player recruitment practices after finding no discrimination|
|Mayweather: Nasukawa exhibition back on|
|Witsel: Joining Borussia Dortmund my best career decision|
|Ballon d´Or win would not change Modric´s ´best year´|
|Ireland v New Zealand: Opta stats behind the meeting of the world´s top two|
|The Breakdown: A statistical look at Saturday´s rugby internationals|
|Batshuayi dismisses reports of Valencia departure|
|Brazil must make Copa America final – Tite|
|Rockets rout Warriors as Green goes scoreless|
|Seahawks rally past Packers|
|Lakers G Rondo to miss 4-5 weeks|
|Durant is done with questions about Green|
|Smith, Warner set to return to IPL in 2019|
|No rivalry between Mbappe and Griezmann – Deschamps|
|Neymar: Emery will bring success to Arsenal|
|Jedvaj backs Croatia to deliver against England|
|Howell grabs first-round lead at Sea Island|
|Rooney backing Kane to break England record|
|Betts named American League MVP|
|Republic of Ireland must improve, says under-pressure O´Neill|
|Injured Sergio Ramos to leave Spain squad|
|Yelich named National League MVP|
|Low praises ´beautiful goals´ from Sane and Gnabry|