Her club team was owned by the textile company Daiwabo, where Okamoto worked.
The company owned a golf facility next door, and when she was 22, Okamoto finally decided to start playing.
Okamoto was a superstar in Japan, but she decided to branch out and joined the American LPGA Tour in 1981.
She was voted into the World Golf Hall of Fame on the International ballot and entered in 2005.
Tournament in bold denotes major championships on LPGA of Japan Tour.