Kalendaryo ng Karera Silverstone Circuit 2021
| Petsa | Serye ng Karera | Biluhaba | Pangalan ng Kaganapan |
|---|---|---|---|
| 26 June - 27 June | Porsche Sprint Challenge Great Britain Natapos | Round 3 | |
| 26 June - 27 June | British GT Championship Natapos | Round 2 | |
| 8 August - 8 August | CALM Lahat Porsche Trophy Natapos | Round 4 | |
| 14 August - 14 August | Porsche Club Championship Natapos | Round 5 | |
| 14 August - 14 August | Porsche Club 911 Hamon Natapos | Round 4 | |
| 14 August - 14 August | Porsche Classic Boxster Cup Natapos | Round 5 | |
| 22 October - 23 October | CALM Lahat Porsche Trophy Natapos | Round 6 | Birkett Relay 2021 |