Mexico's Lorena Ochoa had a 5-under 68 on Sunday to hold off Norway's Suzann Pettersen by a stroke in a dramatic final round and defend her title at the Corona Championship. Ochoa, who also won the tournament in 2006, had back-to-back birdies on the 15th and 16th holes to break a tie with Pettersen and finish at 25-under 267. The charismatic star played without regular caddy Dave Booker, who was injured playing soccer on Saturday and was unable to help the 27-year-old Ochoa around Tres Marias Residential Country Club. She ended up calling on childhood coach Rafael Alarcon to caddy for her. He was evidently up for the challenge, helping Ochoa win her 26th career title and second this season. It was also Ochoa's third win in her home country, where she has played 11 of the 13 LPGA Tour events staged there. “I hope Dave gets well soon. We don't know for how long he's going to be out. But Rafa was very important today,” Ochoa said. “He knows my game very well and we will make a decision for the future later on this week. “Rafa has been giving me advice since I was little, so we didn't do anything different out there, just enjoy it.” South Korea's Na Yeon Choi finished third at 18 under, Wendy Ward was another shot back and Christie Kerr and Yani Tseng tied for fifth at 16-under par. Ochoa won last year's tournament by 11 strokes but had to battle this time, despite finishing with the same total score. “In a golf tournament, where one (shot) is enough to win, there is no difference,” she said. “This is a complicated year. There are many players who want to win. You can see that every week.” Kelly wins in New Orleans In Houston, Jerry Kelly took advantage of a stumbling finish by fellow American Charles Howell III to clinch his third PGA Tour victory by one shot at the New Orleans Classic in Avondale, Louisiana on Sunday. Three strokes clear overnight, Kelly recovered from a nervy start in blustery conditions to card a one-under-par 71 at the TPC Louisiana, ending a title drought of seven years on the US circuit. The 42-year-old covered the last eight holes in two under for a 14-under total of 274, finishing ahead of Howell (68), South African Rory Sabbatini (67) and South Korean Charlie Wi (68). Howell, bidding for a third PGA Tour title, squandered a two-shot lead after 11 holes with bogeys on 15 and 17.