US Open 2017: Brooks Koepka lands first major with stunning final round at Erin Hills

US Open champion Brooks KoepkaGETTY

Brooks Koepka produced a stunning final round

In the early hours of this morning, the American, who had previously won just once on the USPGA Tour (Phoenix Waste Management Open in 2015), claimed a four-shot victory.

Koepka turned in a supreme display, making three successive birdies from the 14th to stamp his authority.

His 16-under par total matched the total set when Rory McIlroy lifted the title in 2011.

Brian Harman could have secured sole possession of second spot, but bogeyed at the 18th to share second with Japan’s Hideki Matsuyama.

England’s Tommy Fleetwood had gone into the final day with a sniff of glory.

He started his final round one shot off the lead.

While he faded on the back nine, he carded a level par round of 72 to finish fourth.

“It's unbelievable. I don't know what to say right now but it's pretty cool," Koepka said.

“To do it where I played the US amateurs is special. It's a real team effort. Everybody putt in a lot of work. It's a special moment.

"It's awesome to get the calls and texts I got last night. It was special for people to give me advice and saying to stick to what I've done. That's what I did and it was great.

Brian Harman at Erin HillsGETTY

Brian Harman had to settle for a share of second

"It was bombs away, you could hit it far and the fairways were generous enough. That was a big plus for me. 

“I’m a big ball striker. On some of these par fives I don't even need to hit driver to get there and I putted brilliantly this week too."

The PGA Tour now turns its attentions to the Travelers Championship which gets underway on Thursday.