Entering the final round at Royal Troon, Schauffele was one of six players tied for second, just one shot behind Billy Horschel. He took command of the leaderboard with consecutive birdies starting at the sixth, followed by four more birdies in a six-hole span after the turn.

The reigning PGA champion finished at nine under, two strokes ahead of his playing partner Justin Rose and overnight leader Horschel. Rose and Horschel kept the pressure on by making two and three birdies, respectively, over the final three holes.

"I've always dreamt of doing it," Schauffele said after his win. "That walk up 18 is truly one of the coolest feelings I've ever had, with the yellow leaderboards, the fans, and the standing ovation. "I got chills walking down and quickly had to snap myself back into focus because the tournament wasn't over yet."

When asked where he ranks his final round, Schauffele said, "At the very tip-top. The best round I've played. It is an incredible feeling to be up here with the Claret Jug. But it is just a result at the end of the day, and I really do believe that.

"Sometimes things go your way, and sometimes they don't. Today I felt like I really controlled a lot of it. I kind of grabbed onto it, and there was no chance I was going to let go of it. All those tough losses in the past or those moments where I let myself slip up and dream too early on that back nine, I was able to reel myself in today and make sure that didn't happen."

Previously regarded as one of golf's 'nearly men' with 12 top-10 finishes without a major victory before his PGA Championship win in May, Schauffele believes that triumph at Valhalla helped him close things out on the final day at Royal Troon. Needing a birdie at the par-five last to avoid a playoff with Bryson DeChambeau, Schauffele sank a six-foot putt to win with a score of 21 under, the lowest 72-hole score in men's major history.

"Winning the first one helped me a lot today on the back nine," Schauffele said. "I had some feeling of calmness come through and that was very helpful on what has been one of the hardest back nines I've ever played in a tournament. It's a dream come true to win two majors in one year. It took me forever just to win one, so to have two now is something else."

He added, "There are super stressful moments when you're trying to win a major championship. I felt them in the past, the ones I didn't win, and I let them get to me. Today I felt like I did a pretty good job of weathering the storm when I needed to." He will now look to defend gold in Paris.