Kazan-ring 2021 Racekalender
| Datum | Raceserie | Ronde | Evenementnaam |
|---|---|---|---|
| 4 september - 4 september | Porsche Sport Challenge Rusland Afgerond | Round 5 |
| Datum | Raceserie | Ronde | Evenementnaam |
|---|---|---|---|
| 4 september - 4 september | Porsche Sport Challenge Rusland Afgerond | Round 5 |