Park stumbles down the stretch, opens with 69

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South Korea's Inbee Park reacts after her tee shot on the first hole during the first round of the Women's British Open golf championship on the Old Course at St Andrews, Scotland, Thursday Aug. 1, 2013. The 25-year-old from South Korea already has won three majors this year. She is trying to become the first golfer, male or female, to win four in one season. (AP Photo/Scott Heppell)

ST. ANDREWS, Scotland (AP) — Inbee Park began her pursuit of an unprecedented fourth straight major with a 3-under 69 on Thursday in the Women's British Open.

For 10 holes, it looked as though Park would be tough to beat. After a ragged back nine, she was happy to break 70.

Park made five putts from 15 feet or longer in an amazing display with the putter. She made six birdies in 10 holes to get her name atop the leaderboard at St. Andrews. But the 25-year-old South Korean began missing fairways, and she took double bogey from a pot bunker in front of the 16th green.

Stacy Lewis, hopeful of being a spoiler this week, had five birdies on the back nine and was the clubhouse leader at 5-under 67.