Japanese
| Round Name | 2015 AUTOBACS SUPER GT Round1 OKAYAMA GT 300km RACE | |
|---|---|---|
| Circuit Name | OKAYAMA INTERNATIONAL CIRCUIT | |
| Official recognition | Fédération Internationale de l'Automobile (FIA) Japan Automobile Federation (JAF) |
|
| Authorization | GTA co., Ltd |
| 4/13-14 | Round1 OKAYAMA | |
| 5/03-04 | Round2 FUJI | |
| 6/01-02 | Round3 SUZUKA | |
| 8/03-04 | Round4 FUJI | |
| 9/21-22 | Round6 SUGO | |
| 10/19-20 | Round7 AUTOPOLIS | |
| 11/02-03 | Round8 MOTEGI | |
 |
12/07-08 | Round5 SUZUKA |