2015 Season
| 19-Apr | Suzuka |
| 26-Apr | Autopolis |
| 31-May | Motegi |
| 28-Jun | Sugo |
| 13-Sep | Autopolis |
| 17-Oct | Okayama |
| 1-Nov | Suzuka |
Standings
| Katsuyuki Nakasuga | 203 |
| Takumi Takahashi | 149 |
| Kazuki Watanabe | 135 |
| Takuya Tsuda | 129 |
| Akira Yanagawa | 116 |
| Tatsuya Yamaguchi | 113 |
| Kohta Nozane | 111 |
| Kousuke Akiyoshi | 88 |
| Shin’ichi Nakatomi | 81 |
| Mitsuru Uramoto | 76 |
| Joshua Hook | 71 |
| Yukio Kagayama | 69 |
| Daisaku Sakai | 68 |
| Kazuma Watanabe | 67 |
| Yoshihiro Konno | 58 |
Race Winners
| Katsuyuki Nakasuga | 7 |
| Takuya Tsuda | 1 |
Pole Positions
| Katsuyuki Nakasuga | 7 |
| Takuya Tsuda | 1 |
