Twenty years after his win at Augusta, 52-year-old Fred Couples grabbed a share of the second-round lead at the Masters, making seven birdies to get to 5-under par and a tie with Sergio Garcia, Rory McIlroy and Jason Dufner. They were all one shot ahead of Lee Westwood, who made double bogey on 18 to finish a round of 1-over 73. Westwood, who led virtually all day, lost the lead when he three-putted from about 12 feet on the 18th green. That gave Couples a share of the lead as he headed to the 18th tee. A shot back at 4 under was Louis Oosthuizen, who overcame a double bogey on No. 1 to shoot even-par 72. Earlier as the sun came out and Tiger Woods took to the course, it was setting up as a very interesting Friday afternoon at Augusta National. The fun, as it so often has over the years, starts with Couples, who ambles comfortably around his favorite golf course every year, and got on a roll this time by spinning a shot from a fairway bunker to eight feet on the par-4 third hole and making the put for the first of his five birdies. McIlroy, who handled his final-round meltdown at Augusta with class last year, is trying to get in contention again. He made three birdies on the front side to move into a tie for fifth. Garcia, who has finished in the top 12 in his last three Majors as he seeks his first, is playing with an infected middle finger on his left hand but striking the ball well. Westwood, meanwhile, is maintaining his lead. He made pars on the first 10 holes, lost a shot on No. 11 but made it up with a birdie on No. 12. He caught a big break on No. 13, when his ball barely cleared Rae's Creek and held up on the closely mowed slope that runs back into the water. But he chipped his third shot over the green and had to settle for par on the hole playing third-easiest so far this week. Ben Crane was also at 3 under, along with Francesco Molinari, who had an afternoon tee time. Woods also had an afternoon tee time and opened with a birdie to move to 1 under. It was a much better start than he had Thursday. Woods knocked his first two tee shots deep into the trees and scrambled for pars there. He was errant on his last two tee shots, as well, and finished bogey-bogey, then headed to the driving range to work out the problems. Fresh off a win in Orlando two weeks ago, Woods was a favorite to take his first major since 2008, but he wasn't looking quite as solid after his even-par opening round that could have been much worse. Phil Mickelson also struggled in the opening round and was hanging around early in the second. He made two birdies over his first 10 holes to reach 1 over, tied for 33rd with more than half the players on the course.