Sean O'Hair shot a five-under 65 on Friday to grab a share of the lead at the halfway point of the EDS Byron Nelson Championship. O'Hair completed 36 holes at nine-under-par 131 along with Brett Wetterich. Ted Purdy posted a 69 to finish one shot back at eight-under-par 132. Billy Mayfair followed at seven-under-par 133. Tiger Woods saw his streak of 142 consecutive cuts made come to an end as the top-ranked player in the world struggled to a two-over 72 at Cottonwood Valley. He finished 36 holes at one-over-par 141. Woods had only missed two other cuts since turning professional in 1996. He shot 70-76 to miss the cut by one stroke at the 1997 Canadian Open, then was charged with a missed cut at the El Nino-disrupted Pebble Beach Pro- Am in 1998 when he chose not to return to complete the tournament over six months later. "I just had a tough day," Woods said. "The wind blowing this hard, just didn't quite have the swing where I needed to put it. I made some silly mistakes out there, too." Woods' streak began at the 1998 Buick Invitational and he had flirted with the cut line on occasion. He tied Byron Nelson's record of 113 at the 2003 Funai Classic, having already passed the likes of Jack Nicklaus (105) and Hale Irwin (86) along the way. Of all of Woods' accomplishments, the cut streak exemplified his endurance throughout his PGA Tour career, one that has earned him nine major championships and 43 titles overall. Woods, who had finished in the top-five in his last four appearances at the Byron Nelson Championship, began Friday at one-under par in the wind at Cottonwood Valley. He parred his first five holes before his second shot to the par-four sixth stopped within seven feet of the hole. Woods converted the birdie try to move to minus-two, but from that point on he was holding on for dear life. The reigning Masters champion stumbled to a bogey at the par-three ninth to make the turn at one-under. Woods, who was struggling off the tee throughout his second round, had problems on the greens as well, and missed a five-foot par putt at the 13th. The cut line moved to accommodate Woods' struggles, but he was unable to take advantage. Woods hit his second shot into a bunker at the par-four 15th and left himself a long chance for par. Woods two-putted for a bogey to drop to plus-one. Woods responded at the par-five 16th, despite another poor drive. He found the rough off the tee, but hit a remarkable second shot reminiscent of so many incredible shots he has hit before. Woods' approach rolled onto the putting surface and came to rest 20 feet from the hole. Staring down an eagle, Woods missed his putt and settled for a birdie to get back to even-par. The 29-year-old found the green at the par-three 17th and rolled his putt over a ridge within a foot of the hole. He tapped in for par and seemed to be in control when his tee shot at the 18th found the fairway. Woods was unlucky with his second shot, however, and watched as his ball carried into a bunker. His third shot from the sand rolled 15 feet past the cup and he left his par try right of the hole to miss the cut by a single stroke. "I fight all the way in. That's how I am," said Woods. "I think that's indicative to the longevity of the streak. You've got to give it everything you've got." The longest current streak now belongs to Ernie Els, who shot a second-round, two-over 72 to finish 36 holes at minus-four. This will be the 20th straight cut made for the three-time major winner. Like Woods, O'Hair also played Cottonwood Valley in the second round and picked up his first birdie of the day at the par-four third. O'Hair added a birdie at the par-four seventh and hit his tee shot inside 30 feet at the par- three ninth. O'Hair drained the putt to reach seven-under around the turn. At the par-five 16th, O'Hair played his second shot to three feet and converted the short eagle try. The 22-year-old PGA Tour rookie parred his next two holes to complete a bogey-free round. "I'm hitting the ball really well," said O'Hair. "I'm rolling the ball well on the greens and my lag-putting is good. It feels very good, I feel very comfortable out there and it's a nice situation that I'm in." Wetterich tallied his first birdie on the par-three second at Cottonwood Valley. He added birdies at the fourth and the seventh to go out in 31, but stumbled to a bogey at the 10th. The 31-year-old countered with a birdie at the 11th and parred his way in for a round of 67. "I feel good," said Wetterich. "There's still two days, you know. I could fall back just as easily as I can keep going at the pace that I am. I'm just going to try to look beyond that." British Open champion Todd Hamilton carded a 67 to join Shigeki Maruyama, Steve Lowery and J.P. Hayes at six-under-par 134. Vijay Singh, who can regain the top spot in the world with a strong weekend, used a 67 to climb into a tie for ninth place at five-under-par 135 with Phil Mickelson, Scott Verplank, Nick Price, John Rollins, Todd Fischer, Doug Barron, Heath Slocum and Omar Uresti. Defending champion Sergio Garcia, who played the TPC at Four Seasons Resort on Friday, shot a 68 to finish in a group at one-under-par 139.