US Open Leaderboard 2015: Updated Scores, Standings from Sunday at Chambers Bay

An unpredictable, at times controversial course. A young player looking to win consecutive majors. Another player battling vertigo symptoms. A four-way tie atop the leaderboard. 

The U.S. Open hasn't exactly been boring this year. 

And the final round likely will be just as thrilling. Below, we'll take a look at the updating leaderboard and preview the final day of action at Chambers Bay.

Leaderboard

Preview

John David Mercer-USA TODAY Sports

One of four players seems likely to win the U.S. Open. One of eight players could feasibly do so. One of 15 or so players maybe, possibly has a shot, because at Chambers Bay, who knows?

But it sure feels like Jordan Spieth is going to find a way to win this tournament. 

Despite shooting a 71 on Saturday—the first round in which he hasn't shot par or better at a major this year—Spieth is far better than he showed during Round 3, when his putter seemed to betray him. It seems he hasn't quite put his game fully together at Chambers Bay. On Friday, he didn't drive the ball as well as he's done in the past. On Saturday, his putting game wasn't on point.

If Spieth puts it all together on Sunday, he'll be tough to beat. Of course, he knows it's all up in the air, as he told the U.S. Open Twitter account:

Jason Day, meanwhile, has put forth a truly amazing effort. Not only did he shoot a 68 on Saturday, he did so while battling vertigo symptoms. You have to wonder if that will affect his game on Sunday, though Day has certainly handled the vertigo to this point.

Jason Sobel summed up his round on Saturday:

Dustin Johnson has had a hard time living up to his opening-round 65 on Thursday, shooting a 71 and a 70 in the next two rounds. Still, the fact that he has that 65 in his pocket makes him very dangerous on Sunday. You can bet it isn't lost on the four players atop the leaderboard that Johnson has shot the lowest score in a round among them.

And then there is Branden Grace, the sleeper among the group who has quietly also been the most consistent. Will the pressure of the moment get to Grace, though? Or will his consistent play to this point carry over to the final day and earn him a major title?

Of the players outside of the top four, Louis Oosthuizen seems the most capable of earning the win. After shooting a horrid 77 to open the tournament, he shot eight-under over the next two rounds. While a third consecutive 66 wouldn't guarantee him a victory, given his three-stroke deficit, it would very likely put him in the running, especially if the final two pairings struggle on the day.

Still, it seems likely that the winner will come from the top four, with Spieth and Johnson the front-runners. The course promises to play a huge role as well, of course, with its unique layout and changing hole placements, and whichever player is able to adjust to that is likely to come out on top. 

The U.S. Open has been a compelling, brilliant tournament to this point. It deserves nothing less in its concluding round.