FORT WORTH, Texas Another lefty won the Colonial on Sunday, and it wasn't the Masters champion.
Steve Flesch, the only golfer with four straight rounds in the 60s, wasn't hurt by a late bogey and won the Colonial by a stroke over Chad Campbell.
A closing 3-under 67 came on Flesch's 37th birthday, and his winning total was 11-under 269.
It was just the second PGA Tour win for Flesch, and the victory came a week after he withdrew from the Byron Nelson Championship because of a sore back and mental fatigue.
Campbell, who charged into a tie for the lead with a course record-tying 61 Saturday, made a 5-foot birdie putt at the 433-yard 18th, and finished alone in second after a closing 68.
Stephen Ames had the best round of the day, a 64 that put him in third place at 271.
Craig Perks (68) was fourth, his best finish since his only win at the 2002 Players Championship.
Masters champion Phil Mickelson, the left-hander who won at Colonial in 2000, had a closing 74. He finished 1 over, tied for 35th.
Jesper Parnevik, who hasn't won in three years, was within a stroke of the lead when he started his final nine holes. He fell out of contention with a 41 on the back nine that included three bogeys, a triple bogey, double bogey and two birdies.
His 72 left him tied for 14th at 3-under 277.
Brian Gay, playing in the last group, saw his chance for his first PGA Tour win end when he lost three strokes in two holes after starting with eight straight pars. He closed with a 75.
It was Steinhauer's sixth career victory and the first since 1999, when she won this tournament and the British Open. She tied for the lead on Saturday with an eagle on the closing par-5.
Grace Park, who took over the money lead from Annika Sorenstam, was second after a 68, while Becky Morgan, who had a four-shot lead after 36 holes, had a 1-over 72 and was at 275. Morgan was 13 under and had a three-shot lead through six holes but didn't have another birdie.
Kelli Kuehne had a final-round 68 and was at 7-under 277, two strokes in front of Young Kim, who had a 70, and Stacy Prammanasudh, who closed with a 68 that included a two-stroke penalty for slow play.
Young-A Yang, who was tied with Park for third at the start of the final round, had a 3-over 74 and finished at 280. She was assessed a two-stroke penalty for slow play on the 17th hole. It was easily Yang's best tournament of the year as her previous top finish was a tie for 71st.
The Quincy, Ill., native survived an early double bogey and challenges by Tom Watson and Tom Kite to win for the second time on the Champions Tour. His fifth victory in the Midwest was worth $225,000 and came two days short of his 51st birthday.
Weibring finished at 9-under 204, his fifth top 10 finish in his last six tournaments.
Tom Jenkins closed with a 70 to finish at 6 under. Watson was next at 5 under after an up-and-down 71 an eagle, three birdies and five bogeys. Kite had a 72 to finish 4 under.
Immelman closed with a 7-under-par 65 to finish at 17-under 271 for his biggest victory. His won $590,000 for his third career title.
Harrington of Ireland finished with a 66. Darren Clarke of Northern Ireland and Joakim Haeggman of Sweden were at 276 after 69s.
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