PORTLAND (Oregon) (AFP) Japans Ai Miyazato posted her fifth win of the year and reclaimed the world number one ranking by capturing the LPGA Safeway Classic on Sunday. Miyazato shot an even-par 72 to finish at 11-under 205, two strokes in front of American Cristie Kerr and South Korean Choi Na-yeon. Kerr was ranked number one heading into the Portland tournament. Kerr shot a 70, and Choi had a 71 on the Pumpkin Ridge Golf Club course. It has been amazing. It is the first time I have a wire-to-wire win, Miyazato said. I am really happy I made it. I had a good feeling with my short game right now. Miyazato, who led all three rounds, is among five players who have been battling for the No. 1 ranking, including Kerr, Shin Ji-yai, Suzann Pettersen and Tseng Yani. The event was hit by controversy Saturday when veteran Juli Inkster, in strong position to contend in the final round, was disqualified. The 50-year-old Hall of Famer was spotted by a fan using a weighted training aid on her club to stay loose while waiting for 30 minutes to make the turn at the 10th hole. Kerr saw her chances of keeping the number one ranking disappear on the final hole when she put her approach shot in the water. I just figured if I hit it solid I would be fine but I didnt hit it solid, Kerry said. I didnt play well enough down the stretch to win. It was her (Miyazato) day Miyazato and Kim, playing in the final pairing of the day, battled on the back nine. Kim pulled even with a birdie on No. 11 but then fell back with consecutive bogeys on 13 and 14. Pettersen (69) and Kim Song-hee (72) finished at eight under. Tseng, who the Womens British Open on August 1 for her second major victory of the season, finished the event at two over. LPGA spokesperson Sue Witters said they disqualified Inkster Saturday after receiving an email from a fan watching the event on television. Inkster wasnt told about the infraction on the No. 10 hole until after she finished her round.