Sports

Colin Montgomerie maintains lead at US Senior Open after 2 rounds

  • Colin Montgomerie watches his chip shot onto the ninth green during the second round of the U.S. Senior Open golf tournament at Oak Tree National in Edmond, Okla., Friday, July 11, 2014. (AP Photo/Sue Ogrocki)

    Colin Montgomerie watches his chip shot onto the ninth green during the second round of the U.S. Senior Open golf tournament at Oak Tree National in Edmond, Okla., Friday, July 11, 2014. (AP Photo/Sue Ogrocki)  (The Associated Press)

  • Colin Montgomerie hits from the fifth tee during the second round of the U.S. Senior Open golf tournament at Oak Tree National in Edmond, Okla., Friday, July 11, 2014. (AP Photo/Sue Ogrocki)

    Colin Montgomerie hits from the fifth tee during the second round of the U.S. Senior Open golf tournament at Oak Tree National in Edmond, Okla., Friday, July 11, 2014. (AP Photo/Sue Ogrocki)  (The Associated Press)

  • Colin Montgomerie walks to the fifth tee during the second round of the U.S. Senior Open golf tournament at Oak Tree National in Edmond, Okla., Friday, July 11, 2014. (AP Photo/Sue Ogrocki)

    Colin Montgomerie walks to the fifth tee during the second round of the U.S. Senior Open golf tournament at Oak Tree National in Edmond, Okla., Friday, July 11, 2014. (AP Photo/Sue Ogrocki)  (The Associated Press)

Colin Montgomerie remains in front after the second day of action at the U.S. Senior Open.

The Scotsman had an even-par 71 on Friday and is 6 under for the tournament, good for a one-stroke lead over Scott Dunlap.

A few golfers remained on the course as of 8 p.m. EDT, but the leaders had finished.

Dunlap had a 68 in the second round. He birdied Nos. 2, 5 and 7 on his way to a 3-under 32 on the front nine.

Bernhard Langer took sole possession of the lead with a birdie on 14, but netted bogeys on 15, 16 and 18 to finish tied for third at 4 under. He is tied with Gene Sauers, who shot 69 on both the first two days.