Bryson DeChambeau said it was special to join elite company in Tiger Woods and Jack Nicklaus with his U.S. Open victory.
DeChambeau pulled away for his first major success, winning by six strokes at Winged Foot in New York.
The American, 27, carded a three-under 67 in the final round on Sunday and was the only player to finish under par.
DeChambeau joined Woods and Nicklaus as the only players to win the U.S. Amateur, U.S. Open and an individual title at the NCAA Division I Men's Golf Championship, and it was company the winner was delighted to join.
"It's just an honour. I don't know what else to say. It's been a lot of hard work," he said.
"Mr Nicklaus has been always awesome to me. He gave me a sponsor's invite. Tiger has always been great to me. I can't say thank you enough to them for them helping me push me along to be a better person and a better golfer, as well.
"But to be in the likes of the names of that company is special. I'll forever appreciate that."
As overnight leader Matthew Wolff fell away in the final round, DeChambeau mixed an eagle with two birdies and a bogey.
The pair traded eagles at the ninth and DeChambeau said his 39-foot putt led to him thinking about lifting the trophy.
"It's kind of interesting, on nine is when I first thought, 'Okay, this could be reality'," he said.
"I made that eagle, long eagle putt and I shocked myself by making it, too, and I thought to myself, I could do it. And then immediately after, I said, 'Nope, you've got to focus on each and every hole', and I just kept throughout the course of the back nine telling myself, 'Nope, we've got three more holes, we've got four more holes, we've got five more holes', whatever it was.
"I just had to keep focused, making sure I was executing every shot to the best I possibly could."