Course
Taiheiyo Club (Minori Course)
Private club
Champions crowned here
| Year | Championship | Winner |
|---|---|---|
| 2026 | Toto Japan Classic | Winner not recorded |
| 2025 | Toto Japan Classic | Nasa Hataoka |
| 2024 | Toto Japan Classic | Rio Takeda |
| 2023 | Toto Japan Classic | Mone Inami |
| 2022 | Toto Japan Classic | Gemma Dryburgh |
| 2019 | Toto Japan Classic | Ai Suzuki |
| 2018 | Toto Japan Classic | Nasa Hataoka |
| 2017 | Toto Japan Classic | Shanshan Feng |
| 2016 | Toto Japan Classic | Shanshan Feng |
| 2015 | Toto Japan Classic | Ahn Sun-ju |
| 2014 | Mizuno Classic | Mi Hyang Lee |
| 2013 | Mizuno Classic | Teresa Lu |
| 2012 | Mizuno Classic | Stacy Lewis |
| 2011 | Mizuno Classic | Momoko Ueda |
| 2010 | Mizuno Classic | Jiyai Shin |
| 2009 | Mizuno Classic | Bo Bae Song |
| 2008 | Mizuno Classic | Jiyai Shin |
| 2007 | Mizuno Classic | Momoko Ueda |
| 2006 | Mizuno Classic | Winner not recorded |
| 2005 | Mizuno Classic | Winner not recorded |
| 2004 | Mizuno Classic | Winner not recorded |
| 2003 | Mizuno Classic | Winner not recorded |
| 2002 | Mizuno Classic | Annika Sörenstam |
| 2001 | Mizuno Classic | Annika Sörenstam |
| 2000 | Mizuno Classic | Lorie Kane |