Patrick Reed Wins the Masters in a Breakthrough Performance

The Masters began with Patrick Reed and Rory McIlroy in a final-round pairing that resurrected memories of the 2016 Ryder Cup at Hazeltine National Golf Club, where Reed got the best of McIlroy in a riveting singles match.

It ended with Reed rebuffing the challenges of two teammates from that victorious United States team, Rickie Fowler and Jordan Spieth, to win at Augusta National. It was Reed’s first victory in a major event, and it happened a short drive from where he led Augusta State to back-to-back N.C.A.A. Division I titles.

Reed closed with a one-under-par 71 for a 72-hole total of 15-under 273. He finished one stroke ahead of Fowler, who birdied six of his last 11 holes to post a 67, and two in front of Spieth, the 2015 Masters champion. Spieth nearly erased a nine-stroke deficit with a scintillating 64.

“In the past,” Reed said, “I put too much pressure on myself. I went out there and I tried so hard to get the ball in the hole, I tried so hard to hit the perfect shots. Going into this week I was just like, ‘Hey, it’s golf. Go play.’”

McIlroy, a four-time major winner who needs a Masters victory to complete a career grand slam, played as if he were putting too much pressure on himself to hit perfect drives and perfect putts. On Sunday, he did neither.

McIlroy, 28, played the front nine in one over on his way to a 74 and a tie for fifth. He was the only player in the top 16 who did not break par.

“It’s hard to take any positives from it right now,” McIlroy said, adding, “I’ll sit down and reflect over the next few days and see what I could have potentially done better, whether it be a mind-set or, I don’t know, I just didn’t have it today.”

Reed’s mind-set tends to irritate golf fans who prefer their champions to exhibit humility, not hubris. In 2014, in the afterglow of his third PGA Tour victory, Reed proclaimed himself a top-five player in the world and promptly received scoldings through social media. (He was 11th in last week’s world rankings)

But Reed’s presence on American teams that compete internationally has enabled other players to see a more endearing version of him, the one that leaves the chip on his shoulder at the team-room door.

“Obviously happy for him,” said Fowler, who lingered in the scoring area so he could embrace Reed when he came off the 18th green. “Sure, it would have been a lot more fun to beat him, but I’m happy with what we did here.”

Reed, Spieth and Fowler treated momentum as if it were a baton and they were a relay team — with Reed as both the leadoff and the anchor. He had set a blistering pace with scores in the 60s for his first three rounds. Spieth took it from there on Sunday, making birdies at Nos. 1, 2, 5, 8 and 9 on the front side and at Nos. 12, 13, 15 and 16 on the back to mount a charge that sent waves of electricity through the grounds.

But this week, he put every part of his game together. He played the par 5s in a total of 13 under, one-putted 22 of the first 36 greens and mostly stayed out of his own way.

His goal, he said, was simply to “not worry about what’s at stake.”

After Spieth birdied the par-3 16th to move into a brief tie for the lead at 14 under, Reed birdied the par-4 14th to get it back. And after Spieth bogeyed the 18th to fall into a tie for second, Fowler birdied the 18th to move ahead of him. Still Spieth marveled at what he had nearly accomplished.

“I almost pulled off the impossible,” he said, expressing one regret. He would have liked to have played a weekend round alongside Reed, who brings out the best in him when they are paired in team events.

“Everybody loves battling Patrick,” Spieth said, “because he loves it so much and eats it up.”

The afternoon starters typically spend the morning watching the early coverage of the round to gauge how the course is playing. What they saw had to make their eyes grow wide: Five of the first seven finishers, including the three-time champion Phil Mickelson (67), broke par.

Tony Finau, who dislocated his ankle on Wednesday, made six consecutive birdies, beginning at No. 12, in his round of 66. Tiger Woods, playing his first major since 2015 after multiple back operations, had his first round under par for the tournament, shooting a 69 to finish at one over for the week.

Paul Casey was nine under for the day through 15 holes before bogeying the last two holes for a 65. Charley Hoffman set off a ground-shaking roar with an ace on the par-3 16th