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Fort Worth, Texas — Kevin Na had gone 26 holes without a bogey at Colonial before his last tee shot Friday was swept away by flowing water after going into a rain-swollen drainage culvert.

Not even that could dampen Na's second round that gave him the lead halfway through the soggy tournament.

Na took the penalty drop near the 17th fairway, and hit a blind approach shot over bleachers to the back side of the 18th green. His two-putt from 20 feet wrapped up a 4-under 66.

"A good bogey," Na said.

At 10-under 130, he was two strokes ahead of Ian Poulter (67) and three up on 2013 Colonial winner Boo Weekley (69).

Na also made some long birdie putts. His 30-footer off the fringe at No. 14 came right after rolling in a 22-footer at the 13th, where he broke into a dance for the rowdy fans surrounding the par 3 situated on the edge of Hogan's Alley.

"I want to call it the Big Bird dance. … It just came out. I wasn't really thinking about it," the 31-year-old Na said. "You know, the crowd has been very supportive. I felt like I was from Texas."

Masters champion Jordan Spieth, a real Texan, was alone in the lead without a bogey before losing four strokes in a two-hole span and finishing with a 73. Spieth finished with a 73, nine strokes worse than his opening round 64 that had him in a four-way tie on top. He dropped seven strokes back at 3 under, in a crowded tie for 15th place.

"I had a goal in mind, and it was a higher score than (Thursday) given the conditions," said Spieth, the 21-year-old Dallas player playing consecutive weeks at home in North Texas. "I wanted no blemishes, and then we held that late through 12 holes."

Brian Stuard (Jackson) shot 69 to make the cut at even-par 140.

With more inclement weather expected today, including the possibility of severe storms in the afternoon, players in the third round will be grouped in threesomes instead of the normal twosomes and go off on both Nos. 1 and 10.

The lead group of Na, Poulter and Weekley was scheduled to tee off around 9 a.m. Saturday, more than 31/2 hours earlier than usual for the leaders' group at Colonial.

Lehman takes Seniors lead

Tom Lehman shot a 5-under 67 on the difficult Pete Dye Course at French Lick (Ind.) Resort to take the second-round lead in the Senior PGA Championship.

The 56-year-old Lehman birdied three of his first four holes and finished with six birdies and a bogey to reach 4 under. He had a one-stroke lead over playing partner Colin Montgomerie and Brian Henninger.

Lehman won the 2010 tournament in Colorado.

McIlroy out at Wentworth

Rory McIlroy missed the cut at the BMW PGA Championship at Wentworth in Virginia Water, England, after an erratic 6-over 78 at the European Tour's flagship event.

The top-ranked Northern Irishman made six bogeys and a double bogey, leaving him at 5-over 149, 15 shots behind clubhouse leader Francesco Molinari (69).

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