No player in history has claimed a bigger winning margin at the AIG Women's Open than Okamoto, who stormed to victory by 11 shots at Woburn in 1984.
Rounds of 71, 71, 70 and 77 saw Okamoto finish on three-under-par for the week, with Betsy King and Dale Reid her nearest rivals on eight-over.
A remarkably consistent player who recorded more than 60 professional wins, Okamoto essentially did everything but win a major during a stellar career that saw her inducted into the World Golf Hall of Fame.
Her triumph at Woburn came before the AIG Women's Open was elevated to major status, while she suffered the pain of six runner-up finishes in majors between 1984 and 1991, three of those coming in the space of four years at the du Maurier Classic.
In all, she managed an impressive 21 top-10s in majors, including eight in succession at the LPGA Championship from 1984.