Kalendar Perlumbaan Litar Silverstone 2021
| Tarikh | Siri Perlumbaan | Bulatan | Nama Acara |
|---|---|---|---|
| 26 Jun - 27 Jun | Cabaran Porsche Sprint Great Britain Selesai | Round 3 | |
| 26 Jun - 27 Jun | Kejohanan GT British Selesai | Round 2 | |
| 16 Julai - 18 Julai | Porsche Supercup Selesai | Round 9 | Formula 1 Pirelli British Grand Prix 2021 |
| 16 Julai - 18 Julai | FIA Formula 2 Championship Selesai | Round 4 | |
| 16 Julai - 18 Julai | F1 Grand Prix British Selesai | Round 10 | Formula 1 Pirelli British Grand Prix 2021 |
| 8 Ogos - 8 Ogos | CALM All Porsche Trophy Selesai | Round 4 | |
| 14 Ogos - 14 Ogos | Kejohanan Kelab Porsche Selesai | Round 5 | |
| 14 Ogos - 14 Ogos | Cabaran Kelab Porsche 911 Selesai | Round 4 | |
| 14 Ogos - 14 Ogos | Piala Boxster Klasik Porsche Selesai | Round 5 | |
| 25 September - 26 September | Piala Porsche Carrera Great Britain Selesai | Round 6 | |
| 25 September - 26 September | BTCC - Kejohanan Kereta Pelancongan British Selesai | Round 22 & 23 & 24 | |
| 22 Oktober - 23 Oktober | CALM All Porsche Trophy Selesai | Round 6 | Birkett Relay 2021 |