| 6 | 65.00 | 2nd Kinki Open | C | 22-Jan to 23-Jan-2005 | |
| 1 | 190.00 | 19th Kyushu Open | C | 12-Feb to 13-Feb-2005 | $107 |
| 2 | 80.00 | 4th Kanagawa Open | C | 19-Feb to 20-Feb-2005 | $49 |
| 3 | 397.50 | Friendship Cup/1st Asia Open | B | 12-Mar to 13-Mar-2005 | |
| 9 | 40.00 | 11th Kansai Open | C | 19-Mar to 20-Mar-2005 | |
| 4 | 105.00 | 8th Chu-Shikoku Open | C | 09-Apr to 10-Apr-2005 | |
| 4 | 165.00 | 3rd Saga Open | C | 09-Apr to 10-Apr-2005 | $27 |
| 1 | 65.00 | 16th Tokyo Open | C | 23-Apr to 24-Apr-2005 | $134 |
| 1 | 95.00 | 6th Haramachi Open | C | 30-Apr to 01-May-2005 | $116 |
| 3 | 35.00 | 1st Gifu Open | C | 07-May to 08-May-2005 | |
| 9 | 110.00 | 17th Japan National Championships | A | 14-Jun to 18-Jun-2005 | |
| 4 | 85.00 | Japan National Open | C | 24-Sep to 25-Sep-2005 | |
| 6 | 90.00 | 10th Kanto Open | B | 22-Oct to 23-Oct-2005 | |
| 4 | 40.00 | 5th Chubu Open | C | 12-Nov to 13-Nov-2005 | |
| 11 | 75.00 | 6th Asia Championships | B | 26-Nov to 27-Nov-2005 | |
| 2 | 75.00 | Japan National Doubles Championship | XC | 10-Dec to 11-Dec-2005 | |
