Munich, Germany (My Sportsbook) - Retief Goosen posted a four-under 68 on Friday to remain atop the leaderboard after the second round of the BMW International Open.

Goosen, a two-time U.S. Open champion, finished 36 holes at 12-under 132, but, despite the four-under 68 on Friday, his advantage shrunk to a single stroke at Golfclub Munchen Eichenried.

Soren Kjeldsen birdied two of his last four holes for a seven-under 65. He vaulted up 10 to second place at minus-11, one ahead of Nick Dougherty (65) and David Drysdale (64).

Goosen began on the 10th tee Friday and parred his first three holes. The South African broke into red figures for the first time in round two with a birdie at No. 13, a hole he birdied in Thursday's opening round as well.

Goosen closed his first nine with birdies at the 16th and 18th holes. Much like No. 13, those were holes Goosen birdied in the first round and he made the turn in three-under 33.

He drove into the rough near a tree at the third hole, but managed a great approach to six feet. Goosen made that birdie putt to first reach 12-under par.

At the par-five sixth hole, Goosen missed the putting surface with his second shot. He pitched to seven feet, but his birdie effort never even threatened the cup.

Goosen once again missed the green, this time with his second at the par-four seventh. His chip came up well short of the flagstick and Goosen wasn't able to convert the par putt.

He parred the par-three eighth, but had a good chance to get back to 12-under par at the par-five ninth. Goosen threw his third over the flagstick and spun it back to 10 feet.

Goosen sank the birdie putt for the 36-hole lead.

"I didn't really give myself that many chances," admitted Goosen. "The greens, especially the first nine, the greens were excellent to putt on. You're sort of a bit frustrated that you didn't take more advantage of the golf course this morning."

Goosen hasn't won on the European Tour since the 2007 Qatar Masters, which was also the last time on tour he held at least a piece of the midway lead. He won the Transitions Championship on the PGA Tour this year and should feel good heading into the weekend at this championship.

Goosen has three top-13 finishes in his last three starts in this event, including a tie for second at the 2006 tournament.

"It obviously suits my eye," Goosen said of the course. "I see the shots pretty good on it and I simply line up for the easy shots into the green. It'll be nice this weekend to keep it going and see what happens."

Thongchai Jaidee (66), Thomas Levet (67) and Danny Willett (68) share fifth place at nine-under 135.

Bernhard Langer, who has won every European Tour event in Germany with the exception of this one, managed his second consecutive four-under-par 68 on Friday.

Langer, the leading money winner on the Champions Tour, is tied for eighth place with Miguel Angel Jimenez (67) and James Kingston (69) at eight-under 136.

Players Champion Henrik Stenson (72) is tied for 36th at minus-four, while Ryder Cup captain Colin Montgomerie carded a 71 to make the cut on the number at three-under 141.

Last year's winner Martin Kaymer wasn't so lucky.

The German posted an even-par 72, but finished at minus-one. John Daly shot a 70 on Friday, but also missed the weekend at even-par 144.