US Open Golf Results 2015: Final Standings and Leaderboard Breakdown

After running away with the Masters title and turning the event his own personal coming-out party, Jordan Spieth had no such luxury in the U.S. Open.

Spieth was sitting in the scorer's tent at Chambers Bay watching Dustin Johnson on the 72nd hole, and he was hoping, hoping that he would end up in an 18-hole playoff for the national championship and his second major title of the year.

Spieth had shot a 69 in the final round on Sunday and had finished the tournament with a five-under par score of 275. But his lead was tenuous, because Johnson had reached the par-five 18th hole in two, and he was 12 feet away from making an eagle putt that would have given him a one-stroke victory in the U.S. Open.

Lenny Ignelzi/Associated Press

Johnson studied his eagle putt from all angles before settling over his ball and sending it three feet wide. But instead of checking that putt out in a similar manner, Johnson putted his ball 48 seconds after his initial miss and the ball hit the left edge of the cup before spinning out.

That miss gave the 21-year-old Spieth his second major championship of the season.

"I'm in shock. Wow. I just watched it. I feel for Dustin," Spieth told the media in a post championship interview (h/t USA Today).

"It's the same feeling I had on 17 (after a double bogey). I just had another hole to rebound. I didn't think this would be over and I'd be holding the trophy."

Spieth had let Johnson, Branden Grace and Louis Oosthuizen back in the championship chase on the 17th after hitting an errant tee shot on the next-to-last hole. He had taken a three-shot lead with a birdie on the 16th hole, while Grace had registered a double bogey on that hole.

Spieth was able to immediately shake off his error on 17 by piping his drive on the 18th hole and then reaching that green in two. He made a decent run at his eagle putt and then connected on a birdie that gave him the victory.

"It's cool to be able to have two legs of the Grand Slam now, and to conquer golf's hardest test," Spieth told Sky Sports. "The U.S. Open is conquering the hardest lay-out in all of golf.

"The fact that we did it is amazing. We really grinded this week. Didn't have my best stuff ball-striking at all and we really grinded over those four- or five-footers ... that was the difference."

Golfer	Final Score	Strokes Behind
Jordan Spieth	275	---
Dustin Johnson	276	1
Louis Oosthuizen	276	1
Branden Grace	277	2
Adam Scott	277	2
Cameron Smith	277	2
Charl Schwartzel	278	3
Brandt Snedeker	279	4
Jason Day	280	5
Shane Lowry	280	5
Rory McIlroy	280	5

Johnson's heartbreaking finish left him in a tie for second with Oosthuizen. Johnson hit the ball exceptionally well from tee to green, but his inability to close out several short putts—especially the monumental miss at 18—cost him the championship.

Oosthuizen shot a sensational 29 on the back nine Sunday, closing the U.S. Open with six birdies on his last seven holes. That allowed him to shoot a 67 in the final round. Oosthuizen shot an eye-opening 199 over the final three rounds, and if he had not blown up with a 77 in Thursday's opening round, he could have emerged with the championship.

Matt York/Associated Press

“I pushed myself the last few holes to be more aggressive on putts, just to see if I can get to some sort of number,” Oosthuizen told Jay Coffin of the Golf Channel. “I think after my start the first round, I’m very happy for where I am now.”

Grace finished in a tie for fourth with Adam Scott and Cameron Smith. Grace and Spieth were engaged in a sharp duel for much of the final round. The two men had been tied for the lead at five-under through 15 holes, and it would not have been surprising if they had ended up in a Monday playoff.

However, Grace fell apart on the 16th hole, and he found himself staring at a three-stroke deficit on the 17th tee after Spieth made a 25-foot birdie putt on the 16th.

Scott had played ordinary golf through the first three rounds, but he shot a 64 in the final round to go from three over to three under. Smith was one of the steadiest performers in the tournament, as he opened with 70 in the first two rounds and closed with a 69 and a 68.

Spieth has earned a spot among golf's elite by winning the first two legs of the Grand Slam. He joins luminaries as Tiger Woods, Jack Nicklaus, Arnold Palmer, Ben Hogan and Craig Wood who have won the first two majors of the year.

Additionally, Spieth is now in the company of legends Young Tom Morris, John McDermott and Gene Sarazen as golfers who have won two major before the age of 22.

There is little doubt that Spieth's achievement is memorable and outstanding. However, the 2015 U.S. Open will be remembered as much for the way Johnson lost his chance at glory as it will be for the way Spieth took advantage of his opportunity to walk with the legends.