(D)：Difending Champion
| Date | Championships | Course | Venue | |
| 5/21 |  |
80th 2015 Japan Open Golf Championship Dream Stage Site:1A | Grandee Nasu Shirakawa Golf Club | FUKUSHIMA |
| 6/4 |  |
80th 2015 Japan Open Golf Championship Dream Stage Site:1B | Ibaraki Golf Club West Course | IBARAKI |
| 6/2 |  |
80th 2015 Japan Open Golf Championship Dream Stage Site:1C | Abiko Golf Club | CHIBA |
| 7/22 |  |
80th 2015 Japan Open Golf Championship Local Qualifying Site:2A | Toshoen Golf Club | TOCHIGI |
| 7/28 |  |
80th 2015 Japan Open Golf Championship Local Qualifying Site:2B | Oarai Golf Club | IBARAKI |
| 7/14 |  |
80th 2015 apan Open Golf Championship Local Qualifying Site:2C | Hamano Golf Club | CHIBA |
| 8/11 – 8/12 |  |
80th 2015 Japan Open Golf Championship Final Qualifying | Ohtone Country Club East Course | IBARAKI |
| 7/22 |  |
48th 2015 Japan Women’s Open Golf Championship Qualifying Site:A | Hirakawa Country Club | CHIBA |
| 8/4 |  |
48th 2015 Japan Women’s Open Golf Championship Qualifying Site:B | Hidaka Country Club East/West Course | SAITAMA |
| 7/23 |  |
48th 2015 Japan Women’s Open Golf Championship Qualifying Site:C | Shiga Golf Club | SHIGA |
| 7/28 |  |
48th 2015 Japan Women’s Open Golf Championship Qualifying Site:D | Waki Golf Club | YAMAGUCHI |
| 8/3 |  |
48th 2015 Japan Women’s Open Golf Championship Qualifying Site:E | Hirakawa Country Club | CHIBA |
| 9/1 |  |
25th 2015 Japan Senior Open Golf Championship Qualifying Site:A | Ranzan Country Club | SAITAMA |
| 9/2 |  |
25th 2015 Japan Senior Open Golf Championship Qualifying Site:B | Spring Fields Golf Club | IBARAKI |
| 8/25 |  |
25th 2015 Japan Senior Open Golf Championship Qualifying Site:C | Nanzan Country Club | AICHI |
| 8/26 |  |
25th 2015 Japan Senior Open Golf Championship Qualifying Site:D | Yasukogen Country Club East/South Course | FUKUOKA |
| 6/24 | 100th 2015 Japan Amateur Golf Championship Qualifying Site:EAST | Caledonian Golf Club | CHIBA | |
| 7/1 | 100th 2015 Japan Amateur Golf Championship Qualifying Site:WEST | Naruo Golf Club | HYOGO | |
| Date | Championships | Course | Venue | |
| 5/25 | 115th 2015 U.S. Open Championship Sectional Qualifying | Kinojo Golf Club | OKAYAMA | |
| 6/15 | 70th 2015 U.S. Women’s Open Championship Sectional Qualifying | Arima Royal Golf Club | HYOGO | |