(D)：Defending Champion
| Date | Championships | Course | Venue | Champion | |
| 9/18～9/21 |  |
35th 2025 Japan Senior Open Golf Championship | Sagamihara Golf Club | Kanagawa | CHOI HOSUNG(D) |
| 10/2～10/5 |  |
58th 2025 Japan Women’s Open Golf Championship | Cherry Hills Golf Club | Hyogo | TAKEDA RIO(D) |
| 10/16～10/19 |  |
90th 2025 Japan Open Golf Championship | Nikko Country Club | Tochigi | IMAHIRA SHUGO(D) |