An shot a round of three-under 69 to get him into a playoff at the Memorial Tournament, but had to settle for second after he was defeated by Bryson DeChambeau.
But then he picked up three birdies over his next four holes and then found himself just two back of DeChambeau with three to play. All he needed on the 72nd hole was a par to clinch the tournament.
An managed to take DeChambeau to an extra hole in the playoff before a poor approach left him needing to hit a very hard flop shot to remain a chance.
An birdied five of his last 14 holes to get to 15 under and into the playoff, though he was mostly an afterthought.
The Stanley stuff was particularly insane.
South Korea's Hyo-Joo Kim (68) was in third at 6under. Here's a look at those two holes. Stanley's bogey on the first playoff hole dropped him out of contention. Stanley hit into the water and made double bogey and looked to be done.
It's hard to overstate how poor DeChambeau was off the tee on Sunday. His ho-hum 1-under 71 was enough to extend the event, despite not having his best stuff.
"It's a strong field on the leader-board and I think everybody's going to go out there and try to make the most birdies possible", Niemann said. "I am playing pretty well". I can't even describe it right now. "Just to be able to win (Jack Nicklaus') event is such an honor". "He s the greatest to play".
And in the process of winning, DeChambeau declared his success as "validity" he deserves his place on the PGA Tour.
But DeChambeau was up to the task and rattled in a confident putt for victory and earn warm congratulations from tournament host Jack Nicklaus, lifting his first PGA Tour title since breaking his duck at the John Deere Classic past year. "Off the tee and [the] approach to the green was one of the best so far this year".
But for now, there is a celebration.
In addition to Stanley, only one other golfer cracked the top 25 this week as Ryan Moore climbed from 29th to 25th. Joaquin Niemann has secured special temporary membership on the PGA TOUR in just his fifth start as a professional.
"All week, I've been hitting it really well". He planned on going to Shinnecock Hills for two days to prep for the U.S. Open before heading to TPC Southwind to drill down on the FedEx St. Jude, where he was in contention a year ago only to finish ninth. If he does that in two weeks, he'll have two U.S. Open trophies to his name. He shot 3-under 69 and was waiting for the final group to finish. He finished six back at the Memorial and all the damage was done on the greens. This week, he was even over the first two rounds and 11 under on the weekend.
It was a rather mundane outing for Tiger Woods, who was unable to take advantage of good scoring conditions. So I'm hitting well, putting well and I'm looking forward to the rest of the season.
Also, the Dublin, Ohio patrons were delirious for most of the last three days.
Note: Because of potential inclement weather, Sunday tee times have been moved up.
Kontaveit snaps Kvitova's streak to advance in Paris
The Spaniard goes on to face Lesia Tsurenko of Ukraine who knocked out Slovakian 19th seed Magdalena Rybarikova 6-2, 6-4. A lot would have questioned her motivation to play and it is these inconsistencies that really drag her down.