Kalendar Perlumbaan Litar Antarabangsa Okayama 2023
| Tarikh | Siri Perlumbaan | Bulatan | Nama Acara |
|---|---|---|---|
| 19 Februari - 19 Februari | Trofi Porsche Perlumbaan Piala Cabaran Selesai | Round 1 | |
| 15 April - 16 April | PCCJ - Porsche Carrera Cup Jepun Selesai | Round 1 & 2 | |
| 15 April - 16 April | Siri Super GT Selesai | Round 1 | Okayama GT 300km Race |
| 10 Jun - 11 Jun | Siri Kereta Jelajah TCR Jepun Selesai | Round 2 | |
| 10 Jun - 11 Jun | Kejohanan Jepun Serantau Formula Selesai | Round 3 | |
| 24 Jun - 25 Jun | Trofi Porsche Perlumbaan Piala Cabaran Selesai | Round 2 | |
| 24 Jun - 25 Jun | Cabaran Mini Jepun Selesai | Round 3 | |
| 17 Ogos - 20 Ogos | GTWC Asia - GT World Challenge Asia Selesai | ROUND 9 & 10 | Fanatec Japan Cup |
| 18 Ogos - 20 Ogos | Siri Piala Jepun Selesai | Round 4 | Fanatec Japan Cup |
| 21 Oktober - 22 Oktober | Siri Super Taikyu Selesai | Round 6 | Super Taikyu Race in Okayama |
| 9 Disember - 10 Disember | Trofi Porsche Perlumbaan Piala Cabaran Selesai | Round 3 |