Mexico&aposs world No.1 Lorena Ochoa staged a successful defence of the Sybase Classic and claimed her sixth title of a dazzling season with a final round 71 at Upper Montclair Country Club in Clifton, New Jersey. In a tournament reduced to 54 holes after Friday&aposs play was washed out, Ochoa finished on 10-under-par 206, and a stroke ahead of a group of five players that included Scotland&aposs Catriona Matthew. Matthew carded a final-day 67 to secure her best finish since she tied for second in last year&aposs major, the Kraft Nabisco Championship. With six birdies, the two-time LPGA Tour winner finished on nine-under alongside Sweden&aposs Sophie Gustafson, Americans Brittany Lang and Morgan Pressel and South Korean Na Yeon Choi. “I played really well today and it was the first time this season that the putts have started to fall,” said the 38-year-old Scot, who started the day four off the lead but made the move with a great back nine of 32. “After I birdied the last (from 10 feet) I thought there might be a chance to win, but there was never much chance that Lorena would lose it.” Ochoa, the Women&aposs British Open Champion, started the final round with a two-shot lead, and was four in front by the time she had picked up shots at the second and fifth. But the rest of the field started making birdies and, when Ochoa had dropped a shot at the tricky par three 17th, she was only a shot ahead. However, she made an easy par at the 18th to collect the 150,000 pound top prize – her sixth win in nine starts this year. At the end of a week in which she announced she would be retiring at the end of this year, Annika Sorenstam, the first round leader on 67, closed with a 71 and tied for 11th place on five-under-par. Wales&apos Becky Morgan, who had a final day 69, was on the same mark. Australian Rachel Hetherington tied for 38th place at even-par while Karrie Webb had a tournament to forget, finishing four-over after a closing 74.