00:45 BST
Well, that's the second round just about over and it looks as though Luke Donald, Lee Westwood and Martin Kaymer will make the cut. Head to Bettingpro's homepage now and stay with us for a full report on the day's action, interviews and the all-important tee-times for Saturday.
00:37 BST
Rory McIlroy will take a six-shot lead into the third round after YE Yang reached the halfway point at five-under. McIlroy was again in superb form with a 66 that would have been even better had he not double-bogeyed the last. Yang, meanwhile, shot a 69 to improve his total to five-under as bogeys at the 11th and 13th prevented him moving within four shots of the Northern Irishman.
00:15 BST
Defending champion Graeme McDowell is two-over-par after 36 holes at Congressional Country Club. The Northern Irishman shot two birdies, three bogeys and a double-bogey in a three-over-par 74 on Friday.
23:51 BST
YE Yang has birdied the par-five 16th to move within six shots of clubhouse leader Rory McIlroy. The South Korean has two more holes to play in his second round.
23:30 BST
Latest "Without McIlroy" odds (
StanJames): 7/2 Yang, 9/1 Kuchar, 10/1 Z Johnson, 12/1 Snedeker, 12/1 Garcia, 14/1 Mickelson, 16/1 Westwood, 28/1 Stricker, 33/1 Donald, 40/1 McDowell
23:04 BST
YE Yang is struggling to gain ground on leader Rory McIlroy. The South Korean is seven shots behind McIlroy, on four-under, following a run of bogey, birdie, bogey between holes 11 and 13. Defending champion Graeme McDowell is even-par through 30 holes, one ahead of Luke Donald after the world number one's fightback was dented by a boget at the 12th. World number two Lee Westwood and world number three Martin Kaymer are two-over through 31 holes.
22:35 BST
YE Yang's (10/1
bet365) pursuit of Rory McIlroy has suffered a setback with a birdie at the 11th which has seen the South Korean fall seven shots behind the leader. World number Luke Donald has improved to even-par through 29 holes thanks to four birdies from five holes before the turn, while second-ranked Lee Westwood remains two-over. In
Paddy Power's "Without McIlroy" market the English pair are 16/1 and 33/1 respectively. Yang is 4/1 favourite.
21:45 BST
Play has resumed in Bethesda. Rory McIlroy is the clubhouse leader on 11-under. YE Yang is five shots behind with nine holes remaining in his second round.
21:18 BST
Play has been suspended due to a "dangerous weather situation". Players have been kept in place, pending the conditions.
21:15 BST
YE Yang (16/1
StanJames) has closed the gap between him and runaway leader Rory McIlroy. The South Korean has shot birdies at the seventh and ninth to make the turn at two-under on the day, and at five-under through 27 holes he is now six shots behind McIlroy. Yang is the 4/1 favourite in
Paddy Power's "Without McIlroy" market.
20:55 BST
Luke Donald has boosted his fight to make the cut with successive birdies. The world number one looked to be in trouble when he bogeyed the par-four fourth, but he responded immediately with birdies at the fifth and sixth to join Lee Westwood on two-over. YE Yang (16/1
SkyBet) has so far failed to eat into Rory McIlroy's lead and remains three-under. Heath Slocum (66/1
SportingBet) has joined him in second having made four birdies and bogey over his opening nine of the day.
20:07 BST
Paddy Power have reacted to Rory McIlroy's US Open dominance by launching a "Without McIlroy" market. Second-placed YE Yang leads the betting at 15/2, while Phil Mickelson, Sergio Garcia and Brandt Snedeker can all be backed at 11/1. Defending champion Graeme McDowell and world number two Lee Westwood are 22/1.
19:56 BST
World number one Luke Donald could be on the brink of an embarrassing early exit from the US Open. The Englishman has bogeyed the par-four fourth to slip to four-over, below the projected cut-off point for the final two rounds.
19:38 BST
Lee Westwood has birdied the par-three second to join Luke Donald on three-over. YE Yang remains alone in second place on three-under after beginning his second round with three straight pars.
19:03 BST
The world's top three - Lee Westwood, Luke Donald and Martin Kaymer - are out on course. However, the trio are some way behind leader Rory McIlroy and will need a huge day to haul themselves into contention.
18:33 BST
Morning Movers: Amanda Balionis delivers exclusive video from round two of the US Open Championship, including a preview of the afternoon television and radio coverage.
18:05 BST
Rory McIlroy has failed to complete his first two rounds without a bogey, making a double-bogey at the 18th. The Northern Irishman had stormed into a 10 shot lead before the final hole and was on course to become the first player since 1992 to reach the halfway point bogey free. However, at 11-under he still holds a commanding clubhouse lead with YE Yang, yet to start his second round, eights shots behind. Phil Mickelson also dropped two shots at the final hole to end the day one-over.
17:59 BST
Rory McIlroy is now 10 shots clear on 13-under following back-to-back birdies at 16 and 17. If he avoids a bogey at 18, the Northern Irishman will become the first player since 1992 to complete the first 36 holes without a bogey.
17:27 BST
It may only be Friday, but could Rory McIlroy (4/11
SkyBet) have one hand on the trophy already? Another birdie at the par-five 16th means he is now 12-under through 33 holes. YE Yang (25/1
Paddy Power), yet to start his second round, is alone in second place on three-under after Zach Johnson slipped to two-under.
16:52 BST
Rory McIlroy has become the first player to ever reach double digits under-par in the second round of the US Open. The Northern Irishman is 11-under through 32 holes following his third birdie of the day at the par-four 14th. He now leads Zach Johnson and YE Yang by eight shots.
16:20 BST
Latest outright winner odds (
bet365): McIlroy 8/13, Yang 20/1, Z Johnson 25/1, McDowell 28/1, Oosthuizen 28/1, Garcia 33/1, Mickelson 33/1, Donald 50/1, Westwood 50/1
16:03 BST
Phil Mickelson's recovery has been halted by a bogey at the par-four 11th. The American, who has shot three birdies today, is now one-over, 11 shots behind leader Rory McIlroy.
15:32 BST
Zach Johnson, who eagled the sixth, has gained ground on leader Rory McIlroy by making his second birdie of the day. The American is now six shots behind McIlroy.
15:03 BST
Rory McIlroy has eagled the par-four eighth and is SEVEN shots clear at the top of the leaderboard. The Northern Irishman is now best-priced at 10/11 with
Paddy Power and it is hard to see anyone stopping him clinching his first Major... unless another spectacular collapse occurs. Zach Johnson (33/1
Betfred) has joined YE Yang 25/1 (Betfred) in second place on three-under, with the latter yet to start his second round. Phil Mickelson (33/1
William Hill) has shot his third birdie of the day at the par-four eighth and is now even-par through 26 holes.
14:41 BST
US Open leader Rory McIlroy is now five shots clear after making his second birdie of the day at the par-five sixth. The rest of the field may have to hope for another final-day meltdown if the Northern Irishman continues this form for the rest of today and tomorrow. Phil Mickelson has record back-to-back birdies at the fifth and sixth to improve to one-over, while Steve Stricker remains two-over.
14:10 BST
Rory McIlroy is showing no signs of slowing down. He's just made his first birdie of the day, at the par-four fourth, to improve his total to seven-under through 22 holes. The Northern Irishman now boasts a four-shot lead and is the 7/4 favourite.
14:03 BST
Phil Mickelson and Steve Stricker have begun their second rounds at Congressional Club. Both men need a dramatic improvement from Thursday if they are haul themselves into contention, and Sticker has started well with a birdies at the first and fourth to improve to two-over. Mickelson has parred his opening four holes to remain three-over.
13:26 BST
Sergio Garcia has slipped back to one-under following a bogey at the par-four 11th, his second hole of the day. The Spaniard would have begun today with a share of second place had he not bogeyed the last hole on Thursday.
13:05 BST
To miss the cut (
SkyBet): Westwood 11/8, Kaymer 13/8, Donald 9/4, Mickelson 9/4
12:57 BST
The second round is now in progress and South Korea's Kyung-tae Kim has made an early impression with an opening-hole birdie that puts him in a share of second place on three-under. Rory McIlroy, yet to begin his round, leads on six-under.
10:06 BST
Latest outright winner odds: McIlroy 5/2, Schwartzel 12/1, Yang 18/1, Garcia 22/1, McDowell 25/1, Kuchar 28/1, Oosthuizen 28/1, Watson 33/1, Mickelson 33/1, Donald 40/1, Westwood 40/1, Stricker 100/1
09:59 BST
Notable second-round tee times (all times BST)
12:44 Steve Stricker, Retief Goosen, David Toms
12:55 Rory McIlroy, Dustin Johnson, Phil Mickelson
13:06 Charl Schwartzel, Trevor Immelman, Zach Johnson
13:17 Rickie Fowler, Ian Poulter, Hunter Mahan
18:35 Ryo Ishikawa, Anthony Kim, Y.E. Yang
18:35 Graeme McDowell, Peter Uihlein, Louis Oosthuizen
18:46 Luke Donald, Lee Westwood, Martin Kaymer
09:52 BST
The second round gets underway in a couple of hours. Rory McIlroy holds a solid three-shot lead after a superb opening-round 65. As for Luke Donald, Lee Westwood and Phil Mickelson, they have it all to do today if they want to have any chance of winning the US Open for the first time.