From 2006 through 2015, the event has been played at Kintetsu Kashikojima Country Club in Shima, Mie.

Its current title sponsor is Toto Ltd. a Japanese bathroom products supplier.

In 2007, Momoko Ueda of Japan scored a final round double eagle to win by two strokes over runners-up Maria Hjorth and Reilley Rankin.

[1] PO Won sudden-death playoff 1 The 1990 tournament was shortened to 36 holes due to rain.

[2][3] 3 The 2024 tournament was shortened to 54 holes due to impact of Typhoon Kong-rey in Japan cancelling the third round.