Silverstone Circuit 2021 Race Calendar
| Date | Racing Series | Round | Event Name |
|---|---|---|---|
| June 26 - June 27 | Porsche Sprint Challenge Great Britain Finished | Round 3 | |
| June 26 - June 27 | British GT Championship Finished | Round 2 | |
| August 8 - August 8 | CALM All Porsche Trophy Finished | Round 4 | |
| August 14 - August 14 | Porsche Club Championship Finished | Round 5 | |
| August 14 - August 14 | Porsche Club 911 Challenge Finished | Round 4 | |
| August 14 - August 14 | Porsche Classic Boxster Cup Finished | Round 5 | |
| October 22 - October 23 | CALM All Porsche Trophy Finished | Round 6 | Birkett Relay 2021 |