J.J. Spaun sank a 65-foot birdie putt on the final hole to win the U.S. Open on Sunday, claiming his first major title with a one-under-par 279 total, two shots ahead of Scotland's Robert MacIntyre.

The 34-year-old American overcame five bogeys in his first six holes and closed with a two-over 72. He rallied with four birdies on the back nine, including a 40-footer at No. 12, a 22-footer at 14, and a tap-in at 17 after driving the green.

"I never thought I would be holding this trophy," Spaun said. "I'm proud I've been so resilient in my career."

Spaun shared the lead with MacIntyre late in the round before pulling ahead for good at the par-4 17th. His final putt at 18 sealed the win after a 96-minute weather delay allowed him to reset before the closing stretch.

"The weather definitely changed the whole vibe for the day," Spaun said. "I fought really hard."

Burns, the 54-hole leader, fell apart with five-over through 12 holes. MacIntyre finished with a 68, and Norway's Viktor Hovland took solo third at 282.

"Gave myself a chance. I seemed to drive the ball really well," said MacIntyre, who was vying to become the first left-handed U.S. Open champion.

Spain's Jon Rahm birdied his final three holes to post a 67 and tie for seventh at 284 with Burns and world No. 1 Scottie Scheffler, who shot 70. Rory McIlroy fired a 67 to finish at 287.

"It will be my first time sort of in public back home after winning the Masters," McIlroy said of the upcoming British Open at Royal Portrush. "It should be a really nice week."

Spaun, who earned $4.3 million for the win, previously won only once on the PGA Tour—at the 2022 Texas Open.

"When I hit it I thought it was short," Spaun said of his winning putt. "But about eight feet out it was looking pretty good. It's just one of those moments in major championships when you seal the deal."