Robert MacIntyre's reaction to JJ Spaun victory at US Open speaks volumes

Robert MacIntyre was spotted applauding and shouting 'wow' as JJ Spaun dropped a birdie bomb on 18 to beat him to a first major title at the US Open.

MacIntyre, 28, set the clubhouse target of 1-over par after an exceptional 2-under 68 in challenging final round conditions at Oakmont.

It looked a distinct possibility that MacIntyre, who started the final round seven shots off the pace, would end up in a playoff for the US Open when he tapped in for par on 18. 

Only Spaun, 34, had other ideas as he drove the green at the 17th en route to a two-putt birdie.

That saw him take the outright lead. 

Spaun then split the fairway down the 18th, found the heart of the green and sent a curling left to right putt from outside of 50 feet into the cup for a closing birdie and two-shot victory.

The American was the only player to finish the week in the red at 1-under par. 

As Spaun was putting out on 18, MacIntyre was sat in the comfort of the clubhouse.

A three-putt bogey would have sent the US Open into a sudden-death playoff between Spaun and MacIntyre. 

But it was not to be as Spaun dropped a birdie bomb to win his first major title and just his second win on the PGA Tour. 

As the putt went down, MacIntyre clapped loudly and shouted out 'wow' in a moment of great sportsmanship.

Watch Bob Mac's reaction below: 

The solo second at the US Open marks MacIntyre's best ever finish at a major. 

MacIntyre also now vaults up to a career-best 12th in the Official World Golf Rankings (OWGR) and to fourth in the European Ryder Cup standings for a place in a second consecutive team this September. 

Tyrrell Hatton's reaction to Spaun's birdie putt on 18 was equally just as good.

Hatton bogeyed the last two holes to finish up in a tie for fourth, which also marked his best ever performance at a major. 

He considered bad luck on the 17th hole was ultimately what cost him the US Open. 

Watch Hatton's reaction below during his interview with reporters: