AP photo by Darron Cummings / Memorial Tournament winner Jon Rahm, right, is congratulated by host Jack Nicklaus after winning Sunday at Muirfield Village Golf Club in Dublin, Ohio.

DUBLIN, Ohio — The drama was more than Jon Rahm wanted. The result was what he always imagined.

Rahm became the No. 1 player in the Official World Golf Ranking with a victory Sunday at the Memorial Tournament, where he watched an eight-shot lead at the turn in the final round shrink to three shots with three holes to play, and then hit what he called the greatest shot of his life that turned into a bogey because of a penalty.

All that mattered was that fist bump — not a handshake — with 18-time major champion and tournament host Jack Nicklaus, and taking his place along his idol Seve Ballesteros as the only Spaniards to reach No. 1 in the world.

With a two-shot penalty for his ball moving the length of a dimple before his chip-in behind the 16th green, Rahm closed with a 3-over-par 75 for a three-shot victory over Ryan Palmer.

Rahm got up and down on the final four greens at Muirfield Village Golf Club, which made it feel even sweeter.

"One of the best performances of my life," the 25-year-old said. "Yesterday was probably one of the best rounds of my life, and finished today with some clutch up and downs. As a Spaniard, I'm kind of glad it happened that way."

The fiery emotion is the former Arizona State Sun Devils star's hallmark. He showed it after a tee shot that sailed left into a creek on the 11th hole, with Rahm slamming his club into the ground in a pique of anger. And it was evident with that ferocious fist pump when his flop shot from deep rough behind the 16th green rolled into the cup.

Birdie or bogey, it was a winner, a shot that would have made Ballesteros proud.

"I still can't believe it, I'm not going to lie," he told Nicklaus off the 18th green.

With the penalty — Rahm had no idea it was a problem after his round but accepted the penalty when he saw a video that zoomed in close on the ball — he finished at 9-under 279 for his 10th career victory overall and his fourth on the PGA Tour.

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AP photo by Darron Cummings / Jon Rahm gets a hug from his wife, Kelley Cahill, after winning the Memorial Tournament on Sunday in Dublin, Ohio.

Muirfield Village played its toughest in 42 years, with only five players under par, the fewest for the final round since this tournament began in 1976. Rahm's 75 was the highest finish by a winner since Roger Maltbie shot 76 the first year.

The rough wasn't cut all week. The greens were allowed to go to the edge because they are being replaced. Crews already had stripped the entire fifth green as the leaders were on the back nine.

Rahm looked to be playing a different course. He played bogey free on the front nine with birdies on the two par 5s. That put him eight shots clear on his way to No. 1.

Then he made bogey on the 10th. Not a problem.

He yanked his tee shot into a creek on the par-5 11th, and that was a bigger problem based on how hard he slammed the club into the ground in a pique of anger. He made double bogey. Palmer made birdie on the 12th, and then Rahm made another bogey from the bunker on the 14th. Just like that, the lead was three shots.

Only a week before at Muirfield Village for the Workday Charity Open, Justin Thomas had a three-shot lead with three holes to play and wound up losing in a playoff to Collin Morikawa.

Rahm was worried his tee shot might find the back bunker, though the rough was not a great option with how fast the greens were running. Rahm was thinking anything inside 10 feet would be good. This was perfect, the ball landing on the fringe and sliding down the slope into the cup. As for the penalty?

"It doesn't change the outcome of the tournament," he said. "It just puts a little bit of an asterisk in it in the sense of I wish I could just keep that birdie because it was one of the greatest shots of my life, right?"

The chip was similar — but from a different angle — to Tiger Woods chipping in from behind the 16th green when he won the Memorial for the fifth time in 2012.

Woods, in his first competition since Feb. 16 because of the COVID-19 pandemic, closed with a 76 and tied for 40th.

"Tough, tough conditions to start out my first week back, Thursday and Sunday," Woods said. "But it was good to get the feel and the flow of competing again."

Matthew Fitzpatrick had a 68 for the low score of the final day to finish third at 5 under, a shot ahead of Jason Day (73) and Matt Wallace (72).

All three Baylor School graduates in the field finished in the top 25: Luke List (71) tied for 10th at par, Harris English (72) tied for 13th at 1 over, and Keith Mitchell (73) shared 22nd at 3 over.

Palmer (74) and Mackenzie Hughes (72) earned spots in the U.S. Open in September as the leading two players from the top 10 who were not already eligible.

Henrik Norlander could have taken the final spot at Winged Foot with a par on the 18th, but he missed the fairway well to the right, couldn't reach the green and made bogey. He and Hughes tied at 3-under 285, but the spot went to Hughes because he had the better spot in the OWGR.

That ranking now starts with Rahm, who only four years ago was at the Memorial to receive the Jack Nicklaus Award as the nation's best college player.

Now he's the best in the world, a ranking that Rory McIlroy had held — for the eighth time — since Feb. 9.

"He deserves it," McIlroy said after his tie for 32nd. "He's been playing great for a long time. Even the display this week, it's pretty impressive."