Northern Ireland’s Rory McIlroy cruised to a St. Patrick’s Day victory at the Players Championship on Monday (Tuesday AEDT), defeating J.J. Spaun in a playoff at TPC Sawgrass in Florida.

The four-time major champion completed the three-hole shoot-out in one-over par, while Spaun’s challenge wilted after a disastrous triple-bogey on the second playoff hole — the iconic and infamous island green 17th.

“This is the third time I’ve won on St. Patrick’s Day, so it’s been a good luck charm for me,” McIlroy said after sealing the second Players Championship of his career and 28th PGA Tour title overall.

“I was lucky enough to do enough to get it done, but unbelievably proud and happy to win my second Players … It’s really nice,” McIlroy added.

“I went home last night thinking, ‘I should have had this.’ But I went home and reset, didn’t have a great night’s sleep, but was lucky enough to get it done.”

McIlroy had finished tied at the top of the leaderboard with Spaun following Sunday’s storm-hit final round after failing to hold on to a three-shot lead with five holes to play.

But after returning to the course on Monday in bright, breezy conditions, there was no sign of a repeat of the late stumble by McIlroy on Sunday that had allowed Spaun to force his way into the first playoff of his career.

McIlroy struck first on the opening playoff hole, the par-five 16th, crushing a 336-yard drive straight down the fairway before reaching the green in two.

Spaun meanwhile looked out of sorts from the get-go, finding the fairway rough off the tee before landing his second shot into the greenside bunker.

Rory McIlroy for a photo with the trophy after beating JJ Spaun.Source: Getty Images

McIlroy failed to make his 33-foot eagle putt but calmly rolled in an awkward five-footer for birdie.

Spaun, whose recovery out of the bunker left him with a long, unsuccessful birdie putt, could only par.

After that early wobble, things got worse for Spaun at the par-three 17th island hole, with the American plunging his tee-shot into the water behind the green.

Spaun then missed a long 10-foot putt for double bogey and eventually finished with a triple-bogey six.

He then relived the moment during his press conference, spotting the replay on a television in the media centre, and he was still in disbelief.

“I always wanted to say get up because it looked like it was short,” Spaun said. “I was stunned. I couldn’t believe it was long.”

While McIlroy missed his birdie chance and a 10-footer to save par, his bogey four still left him three shots clear heading to the 18th.

McIlroy’s tee-shot on the last went well wide of the right fairway, but Spaun was unable to exert pressure, also going wide of the fairway.

Both players reached the green in three and missed their par putts. McIlroy coolly tapped in for bogey to seal victory.

Rory McIlroy reacts on the 18th green during the playoff.Source: AFP

McIlroy’s win marked the second title of the season for the Northern Irishman as he build towards the Masters in Augusta next month — the only major missing from his collection.

McIlroy said his early season form was a reward for the hard work he has put in over the years.

“I’ve worked really hard — I feel like I’m a way more complete player than I was a few years ago,” McIlroy told NBC. “I feel like I can play in all conditions and anything that comes my way. Really happy that I was able to get it done today.”

Spaun meanwhile was left reflecting on a disappointing outcome.

“It’s hard not to feel discouraged a little bit, but nothing but positives,” Spaun said.

“Putting myself in contention and giving myself a chance to win in a playoff — if someone had told me that would happen at the start of the week I would totally have taken it.

“Hopefully I can just learn from this and get it done next time.”