At just 21 years of age, Si Woo Kim kept a clean scorecard in the final round at the Players Championship on his way to becoming the youngest ever victor of the event.
But it didn't feel like any kind of fluke as Kim masterfully negotiated the diabolical Stadium Course at TPC Sawgrass, shooting a bogey-free 69 to win by three shots.
Kim also becomes the second Korean golfer to win here at The Players Championship.
"From being in a position a couple of weeks ago where I wasn't here to finish tied second, it's a good week", said Poulter after finishing three shots behind South Korea's Si Woo Kim - his best finish since November 2014.
Kim gets $1.89 million for his second PGA Tour victory, and a three-year exemption to the Masters. While no male Korean golfers were able to crack their way into the top 30 in the world ranking a year ago, there were five Koreans ranked in the top 10 of the Rolex Ranking, a ranking system for female golfers.
Poulter is now inside the top-60 of the FedEx Cup rankings.
Poulter stayed on Kim's heels throughout the final nine holes until a wayward approach shot into the trees right of the fairway on the closing hole ended his chance.
Stanley was nine shots lower than his playing partner, but a 75 still dropped him into a tie for fourth at 6-under with Rafael Cabrera Bello - who had one of the most sensational finishes in Players history when he made the first double-eagle at the par-5 16th hole, and added a birdie at No. 17.
"On Saturday night at the Players, my back began to flare up", Kim said in a statement.
"The last 18 months have been really miserable but I grew in confidence as the afternoon went on, and now I want to build on it and get back to the top of the game", Poulter told reporters after Sunday's round. "But the fourth shot was pretty special - from one of the worst shots I've ever hit to one of the very best". Today I felt like a couple of putts slid by, but I played well under pressure, barring that awful second shot on the last. "He's just so mentally strong for 21 that you can't really believe that he's 21". However, he bogeyed the last after shanking his second into a bush and finished tied for second with South African Louis Oosthuizen on seven-under. But he failed to birdie the short par-4 12th and gave back his eagle gains on the next two holes to end any title hopes. "And never once did he look flustered at all". It took him eight shots in four rounds, or the same number of shots J.B. Holmes had on Sunday when he made his quintuple bogey.
European PGA: Matt Wallace completed an unlikely wire-to-wire victory in the Open de Portugal to earn a European Tour card.