The 27-year-old edged out American duo Scotty Scheffler and Will Zalatoris with one shot to secure victory after the final day of the roller coaster.
“It’s like a big release: you finish the tournament, win and realize that you have achieved one of your life goals.
Fitzpatrick, a seven-time European Tour winner, was forced to wait for his first major, but he eventually won it in style.
Despite spells of wind that wreaked havoc on the challenging par-70 course, Fitzpatrick never scored above par over four rounds.
His 68, 70, 68 in the first three rounds saw him co-lead with Zalatoris before the deciding day, where his third 68 was enough to take a one-hit six-under-par win.
As with any great sporting achievement, there have been sacrifices along the way, but Fitzpatrick says all the hard work and dedication has been worth it.
“I just want to win. For what it’s worth, this is what I have to do,” he added, laughing at how he recently hosted a bachelor party but didn’t show up as he was preparing for the US Open.
“I feel like what gives me an advantage over other people is dedication, going out when no one is around and working hard, and that’s what got me to this level.”
Jack Nicklaus record
In addition to receiving a $3.15 million share of the $17.5 million total prize, the largest pot in major championship history, Fitzpatrick also set a special record.
Peace No. 18 is just the second player – and the first non-American – to win both the US Amateur and the US Open in the same venue, winning at The Country Club in 2013.
Jack Nicklaus is the only golfer to achieve such success since his triumph at Pebble Beach in 1961 and 1972.
“This is amazing. The best golfer of all time. Incredible to share any of his accomplishments,” Fitzpatrick said, beaming.
“I’m so proud of myself that I was able to achieve this, and when you share records with Jack, it’s something special.”
Fitzpatrick was born and raised in the English city of Sheffield, and thanks to his upbringing and close circle of family and friends, he maintains a poise and resilience.
Last week, his fortitude was on full display at The Country Club, as were his familiar quirks.
Fitzpatrick doesn’t do what many golfers do: he leaves the flag when he puts down the ball and takes notes after each stroke.
That is, every hit except his last hit to secure the US Open.
“I didn’t even write down how close it was, but I remember it, so I’ll do it later,” he laughed.
Fitzpatrick’s next big target is the upcoming Open Championship in St. Andrews, Scotland, and the Englishman is looking forward to adding to his collection.
“I am delighted with one [major] but two would be over the roof,” he said, adding that he was looking forward to celebrating his victory.
“This is the greatest achievement of my career. I will enjoy the time spent with family and friends. Like I said, it’s just a really crazy special moment.”