Kalendaryo ng Karera Algarve International Circuit 2021
| Petsa | Serye ng Karera | Biluhaba | Pangalan ng Kaganapan |
|---|---|---|---|
| 23 Enero - 24 Enero | SuperCars Endurance Series Natapos | Round 1 | |
| 23 Enero - 24 Enero | GT Winter Series Natapos | Round 1 | |
| 16 Pebrero - 17 Pebrero | GT Winter Series Natapos | Round 2 | |
| 23 Abril - 25 Abril | International GT Open Natapos | Round 8 | |
| 11 Hunyo - 13 Hunyo | WEC - FIA World Endurance Championship Natapos | Round 2 | 8 Hours of Portimão |
| 15 Hulyo - 18 Hulyo | 24 GT Series Natapos | Round 8 | Hankook 24H Portimao |
| 15 Oktubre - 17 Oktubre | SuperCars Endurance Series Natapos | Round 4 | Algarve Welcome Spring |
| 22 Oktubre - 23 Oktubre | Ligier European Series Natapos | Round 6 | |
| 22 Oktubre - 24 Oktubre | PCCF - Porsche Carrera Cup France Natapos | Round 6 | 4 Hours of Portimão |
| 11 Disyembre - 12 Disyembre | GT Winter Series Natapos | Round 4 |