Kalendaryo ng Karera Okayama International Circuit 2015
| Petsa | Serye ng Karera | Biluhaba | Pangalan ng Kaganapan |
|---|---|---|---|
| 3 Abril - 5 Abril | PCCJ - Porsche Carrera Cup Japan Natapos | R01 & R02 | 2015 Autobacs Super GT Round1 Okayama GT 300km Race |
| 4 Abril - 5 Abril | F4 Japanese Championship Natapos | R1/R2 | 2015 Autobacs Super GT Round1 Okayama GT 300km Race |
| 23 Mayo - 24 Mayo | Super Formula Natapos | Round 2 | |
| 5 Setyembre - 6 Setyembre | Serye ng Super Taikyu Natapos | Round 5 | |
| 10 Oktubre - 11 Oktubre | LSTA - Lamborghini Super Trofeo Asia Natapos | Round 5 |