Miyazato, just back from earning a U.S. LPGA Tour card for next year, had five bogeys, a double bogey and a triple bogey against a lone birdie at the par-71 Naha Golf Club.
'I feel fine so I thought I would be able to get a better score,' said Miyazato. 'All I can do is hope to play better tomorrow.'
Miyazato, who won six times on the Japan LPGA this year, has invigorated the sport in Japan and plans to play on the U.S. LPGA tour next year.
Fiji's Dinesh Chand took the first round lead along with Japan's Kaname Yokoo after both players shot 65s in the opening round.
Copyright 2005 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.