Lance Ten Broeck carded a 2-under 68 on Friday to grab 1-stroke lead after the second round of the U.S. Senior Open.

Ten Broeck, who caddies full time for Tim Herron on the PGA Tour, completed 36 holes at 6-under-par 134.

"I think it helps me with my strategy or just overall attitude on the golf course as far as trying to press," Ten Broeck said in a TV interview. "You know you have to play safe sometimes, and sometimes par is your friend."

The 56-year-old has competed in just one Champions Tour event this season, and he finished tied for 71st. Not only is this just the second event of the year for Ten Broeck, its just his fifth tour start since 2008. In that span, he has also had two PGA Tour starts.

This is the first USGA Championship Ten Broeck has competed in since the 1992 U.S. Open, which was won by Tom Kite.

Kite, the first-round leader, bogeyed four of his last nine holes en route to an even-par 70. That left him alone in second place at minus-5 on the Old Course at Indianwood Golf & Country Club.

Tradition winner Tom Lehman carded a 4-under 66, while Senior PGA Championship victor Roger Chapman posted his second straight 68. They are tied for third at 4-under-par 136 with 2010 champion Bernhard Langer (70), John Huston (67), Corey Pavin (69) and Dick Mast (68).

Jay Haas, Mark Wiebe and Chien Soon Lu all shot 2-under 68 and share ninth at minus-3.

Ten Broeck trailed Kite most of the day, and didn't take the lead until after he was finished his round.

He started the second round with four straight pars from the 10th. After stumbling to a bogey on the par-4 14th, Ten Broeck eagled the par-5 15th to move to 5-under.

Ten Broeck parred the next three. He birdied the par-5 first and made it two in a row with a 5-foot birdie effort at the second. That gave him a share of the lead for less than a minute as Kite responded with a birdie of his own on the 17th.

At the fourth, Ten Broeck found the rough off the tee and that led to a bogey. That dropped him three back at minus-6. Ten Broeck parred out to end there.

"I haven't played much golf. When I do practice, you don't know if you're playing good, bad, or if you're playing good how good you're playing," Ten Broeck stated in a television interview. "Yesterday, I played great, but today I struggled a little bit.

"I didn't hit it in the fairway that often, and I was fighting the putter the whole way."

Kite birdied the 12th and 15th to move to 7-under par. After Ten Broeck tied him, Kite rolled in a birdie putt from off the green on No. 17 to move one ahead.

At the 18th, Kite knocked in a 3-footer for birdie to push his lead to two. That lead was briefly three after Ten Broeck's bogey at the fourth, but trouble loomed for Kite.

Kite chipped his fourth at No. 1 to five feet, but failed to make the par- saving putt. A poor second shot at the fourth led to another bogey.

Kite stumbled to a bogey at the sixth to slip into a share of the lead with Ten Broeck. After a pair of pars, Kite found the left rough off the tee at the ninth, his last.

From a tough stance, Kite played his second into a greenside bunker. He blasted to 25 feet, but his par-saving effort stopped just short of the hole. The closing bogey left Kite one back with 36 holes to go.

"This is that type of golf course. There are some opportunities out there to take advantage of the golf course, if you drive it in the fairway," Kite said in a televised interview. "If you drive it in the rough like I did the last nine holes, you're going to pay the price."

Brad Bryant, the 2007 champion, shot 2-under 68 to join 2009 winner Fred Funk (71) and eight others in 12th place at 2-under-par 138.

NOTES: Defending champion Olin Browne struggled to a 4-over 74 to tumble into a share of 42nd place at 3-over-par 143...The cut line fell at 5-over-par 145 with 66 players advancing to the weekend...Among those that missed the cut were two-time champions Allen Doyle and Hale Irwin, as well as former winners Eduardo Romero and Graham Marsh.