Kalendaryo ng Karera Chang International Circuit 2021
| Petsa | Serye ng Karera | Biluhaba | Pangalan ng Kaganapan |
|---|---|---|---|
| 14 Mayo - 16 Mayo | TSS - Thailand Super Series Natapos | Event 3 | Event 3 |
| 2 Hulyo - 4 Hulyo | LSTA - Lamborghini Super Trofeo Asia Natapos | Round 2 | |
| 2 Hulyo - 4 Hulyo | GTWC Asia - GT World Challenge Asia Natapos | ROUND 5 & 6 | |
| 10 Setyembre - 12 Setyembre | Super Turbo Thailand Natapos | Round 5 & 6 | |
| 8 Oktubre - 10 Oktubre | Toyota Vios Series Lady Cup Natapos | Round 1 | |
| 29 Oktubre - 31 Oktubre | TSS - Thailand Super Series Natapos | Event 1 | Event 1 |
| 17 Disyembre - 18 Disyembre | Toyota Vios Series Lady Cup Natapos | Round 4 | |
| 23 Disyembre - 26 Disyembre | TSS - Thailand Super Series Natapos | Event 2 | Event 2 |