Kalendar Perlumbaan Litar Antarabangsa Okayama 2023
| Tarikh | Siri Perlumbaan | Bulatan | Nama Acara |
|---|---|---|---|
| 19 Februari - 19 Februari | Challenge Cup Race Porsche Trophy Selesai | Round 1 | |
| 15 April - 16 April | Porsche Carrera Cup Jepun Selesai | ||
| 15 April - 16 April | Super GT Series Selesai | Round 1 | Okayama GT 300km Race |
| 10 Jun - 11 Jun | TCR Japan Touring Car Series Selesai | ||
| 24 Jun - 25 Jun | Challenge Cup Race Porsche Trophy Selesai | Round 2 | |
| 24 Jun - 25 Jun | Mini Challenge Japan Selesai | Round 3 | |
| 17 Ogos - 20 Ogos | Fanatec GT World Challenge Asia Selesai | ROUND 9 & 10 | ROUND 9 & 10 |
| 18 Ogos - 20 Ogos | Siri Piala Jepun Selesai | Round 4 | Fanatec Japan Cup |
| 9 Disember - 10 Disember | Challenge Cup Race Porsche Trophy Selesai | Round 3 |