South Korean 20-year-old Kim In-kyung birdied the last two holes in Sunday's final round to win the LPGA Longs Drugs Challenge by three strokes over American Angela Stanford. Kim, who began the day with a one-stroke lead over Stanford, fired a one-over par 73 on another windy day at Blackhawk Country Club to finish 72 holes on 10-under par 278, with Stanford firing a 75 to settle for second on 281. Taiwan's Yani Tseng was a further shot back after a 72 for 282. Mexico's top-ranked Lorena Ochoa was fourth on 284 after a final-round 72. Kim took a bogey at the second but parred the next 11 holes. After stumbling with bogeys at the 14th and par-3 16th, Kim responded with the title on the line with back-to-back birdies to hold off Stanford. “Before I started, I just wanted to play, and I didn't want to change any plans, just hit the fairways and greens and give myself chances,” Kim said. “I had to get up-and-down from many holes, which I did. I think I did a good job with that.” On the 333-yard par-four 17th, Kim drove into a bunker 70 yards from the green and hit her second to eight feet for birdie. On 18 she fired a nine-iron from 144 yards to 25 feet and she drained that for a birdie to put an exclamation point on the win. “Last three holes left and I had a two shot lead,” said Kim, who earned $180,000 for the victory, which came in her second season on the US tour. Britain's Karen Stupples, Italy's Silvia Cavalleri and Americans Brittany Lang and Kristy McPherson shared fifth on 285. Johnson wins in Texas Former Masters champion Zach Johnson birdied the last hole to complete a final round of 64 and win the Texas Open by two strokes on Sunday. Johnson, the 2007 Masters winner, finished on 19-under 261 to claim his fourth PGA Tour victory and first of the year ahead of South Korean Charlie Wi, American Mark Wilson and New Zealander Tim Wilkinson. Wi shot a nine-under 61, Wilson 63 and Wilkinson 64 to finish in a three-way tie for second place on 263. Overnight leader Rory Sabbatini struggled on the final day and finished tied for eighth, the South African producing a double bogey on the first hole and another at the 15th on the way to a round of 72.