Chang International Circuit 2021 Race Calendar
| Date | Racing Series | Round | Event Name |
|---|---|---|---|
| May 14 - May 16 | TSS - Thailand Super Series Finished | Event 3 | Event 3 |
| July 2 - July 4 | LSTA - Lamborghini Super Trofeo Asia Finished | Round 2 | |
| July 2 - July 4 | GTWC Asia - GT World Challenge Asia Finished | ROUND 5 & 6 | |
| September 10 - September 12 | Super Turbo Thailand Finished | Round 5 & 6 | |
| October 8 - October 10 | TOYOTA VIOS Series Lady Cup Finished | Round 1 | |
| October 29 - October 31 | TSS - Thailand Super Series Finished | Event 1 | Event 1 |
| December 17 - December 18 | TOYOTA VIOS Series Lady Cup Finished | Round 4 | |
| December 23 - December 26 | TSS - Thailand Super Series Finished | Event 2 | Event 2 |