(D)：Defending Champion
| Date | Championships | Course | Venue | Champion | |
| 5/20～5/22 |
2026 Japan Women’s Senior Open Golf Championship Taiyo Seimei Genki・Nagaiki Cup |
Musashi Country Club Toyooka Course |
SAITAMA | Lee Jihee | |
| 6/16～6/19 | 67th 2026 Japan Women’s Amateur Golf Championship Presented by Carpremia |
Hokkaido Brooks Country Club | HOKKAIDO | AIRA NAGASAWA | |
| 6/30～7/3 | 110th 2026 Japan Amateur Golf Championship Presented by Carpremia |
Yokkaichi Country Club | MIE | Minsu Kim (KOREA) | |
| 8/19～8/21 | 70th 2026 Japan Junior Golf Championship Presented by Ｓｋｙ Boy’s 15-17 Division |
Kasumigaseki Country Club | SAITAMA | ||
| 8/19～8/21 | 70th 2026 Japan Junior Golf Championship Presented by Ｓｋｙ Girl’s 15-17 Division |
Kuni Country Club East・North Course |
SAITAMA | ||
| 8/19～8/21 | 70th 2026 Japan Junior Golf Championship Presented by Ｓｋｙ Boy’s 12-14 Division |
Chiba Country Club Umesato Course |
CHIBA | ||
| 8/19～8/21 | 70th 2026 Japan Junior Golf Championship Presented by Ｓｋｙ Girl’s 12-14 Division |
Chiba Country Club Umesato Course |
CHIBA | ||
| 9/17～9/20 |  |
36th 2026 Japan Senior Open Golf Championship |
Genkai Golf Club | FUKUOKA | |
| 10/1～10/4 |  |
59th 2026 Japan Women’s Open Golf Championship |
Takarazuka Golf Club Old Course |
HYOGO | |
| 10/15～10/18 |  |
91st 2026 Japan Open Golf Championship |
Tarao Country Club West Course |
SHIGA | |
| 10/28～10/30 | 47th 2026 Japan Senior Golf Championship |
The Country Club | SHIGA | ||
| 10/29～10/30 | 33rd 2026 Japan Women’s Senior Golf Championship |
Tojigaoka Marine Hills Golf Club | OKAYAMA | ||
| 11/5～11/6 | 32nd 2026 Japan Mid-Senior Golf Championship |
Ayutaki Country Club | KAGAWA | ||
| 11/5～11/6 | 3rd 2026 Japan Women’s Grand-Senior Golf Championship |
Ogori Country Club | FUKUOKA | ||
| 11/12～11/13 | 32nd 2026 Japan Grand-Senior Golf Championship |
Ise Country Club | MIE | ||
| 11/12～11/13 | 30th 2026 Japan Women’s Mid-Amateur Golf Championship |
Nissin Miyako Country Club | KYOTO | ||
| 11/18～11/20 | 30th 2026 Japan Mid-Amateur Golf Championship |
Otone Country Club West Course |
IBARAKI | ||
| 11/25 | 16th 2026 J-sys Golf Tournament JGA Cup Men’s |
Aichi Country Club | AICHI | ||
| 11/25 | 16th 2026 J-sys Golf Tournament JGA Cup Women’s |
Aichi Country Club | AICHI | ||
| Date | Championships | Course | Venue | |
| 5/4 | 19th 2026 All Japan Elementary Student Golf Tournament Boy’s Division |
Abiko Golf Club | CHIBA | |
| 5/4 | 19th 2026 All Japan Elementary Student Golf Tournament Girl’s Division |
Abiko Golf Club | CHIBA | |