It was an accomplishment that wasn't lost on golf's newest major champion, even if his father and other family members weren't in attendance at Erin Hills on Sunday and missed one of Koepka's appearances at a major for the first time.
In his final round, Koepka hit 85% of his fairways and led the field hitting 94% of greens in regulation.
The 24-year-old world No. 13 produced a magnificent eagle three on the 600-yard 18th hole to crown a spellbinding display that was the lowest to par score in US Open history.
Winds blowing up to 25 miles per hour (40 kph) greeted the early starters for the final round on the links-styled layout.
Koepka is now the seventh first-time major victor in a row, following on from Sergio Garcia, Jimmy Walker, Henrik Stenson, Dustin Johnson, Danny Willett and Jason Day. Palmer shot a 65 after going into the final round trailing by seven shots.
Li, who turned professional at age 16 and won the Volvo China Open past year on the European Tour, said he started pressing in the third round. They would combine for 23 majors by the end of their careers, but in 1974 they collectively had only 15.
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Mexico's all-time leading scorer still had time before the end of the half to blaze over from a good position. His pass split the Mexican defence and gave Ricardo Quaresma a golden opportunity to open the scoring.
Justin Thomas broke the record for the lowest-ever US Open round in relation to par here on Saturday, but he does not hold the mantle of the greatest ever US Open round. I felt very comfortable.
Brian Harman hits from the second tee during the fourth round of the U.S. Open golf tournament Sunday, June 18, 2017, at Erin Hills in Erin, Wis. Much like Johnson, it takes a lot to get him excited even a share of the 36-hole lead at the U.S. Open. I still remember trying to help you choke down what they laughingly called "Sloppy Joes" while the nursing home radio playing such Old Folks Home hits as "Hot Legs", "Super Freak" and "Girls Girls Girls" over the P.A. system. "This one was a challenge to get in".
Harman was on top at 12 under coming into the day. "I wish I would have been able to give myself a few more looks out there today and make a few more birdies".
Thomas also is the 29th player to shoot 63 in a major.
He bogeyed the 11th, 12th and 13th holes and missed a short birdie putt on the par-five 14th. Fowler finished at 10 under, in a tie for fifth place. He played all over the world in relative obscurity until he got good enough to make it on the PGA Tour.
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We have not received, nor are we aware of, any investigation of the President of the United States. The lawyer also said it was unlikely that any obstruction probe would not examine Trump.
Australia's Marc Leishman shot a final round 75 to finish at one-under, in a tie for 27th.
"So you had to play different shots and the wind is really blustery out there".
Nobody in the top 16 on the leaderboard has won a major.
That victory five years ago at Royal Latham was his last tour win. "I would love to keep playing them".
But two-time major victor Jordan Spieth proved a good score was still possible, the 2015 champion carding five birdies and two bogeys in a 69 to finish one over par overall. "I don't know, but in my opinion, I would like to see another one here down the road, sure".
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North Carolina State shortstop Joseph Dunand, nephew of Alex Rodriguez , was selected as a third baseman by the Marlins at No. 51. In Rogers senior year of high school alone, the big young man threw three no-hitters, one of them being a flawless game.