Autosport Kalender
| 07-03 | HARC 2021 | HARC Vrij Rijden Dag Circuit Zandvoort |  |
| 07-03 | HARC 2021 | HARC Historic 250 Circuit Zandvoort | |
| 18-04 | NKHTGT 2021 | NK HTGT Historic Racing (16-18 april) Hockenheimring |  |
| 16-05 | HARC 2021 | Historic Zandvoort Trophy (14-16 mei) Circuit Zandvoort | |
| 06-06 | NKHTGT 2021 | NK HTGT Historic Racing (5-6 juni) Circuit Zandvoort | |
| 13-06 | HARC 2021 | ADAC Hansa Pokal Rennen (11-13 juni) TT Circuit Assen | |
| 27-06 | NKHTGT 2021 | NK HTGT Historic Racing (25-27 juni) Spa-Francorchamps |  |
| 11-07 | NKHTGT 2021 | NK HTGT Historic Racing (10-11 juli) Circuit Zolder | |
| 18-07 | HARC 2021 | Historic Grand Prix Zandvoort (16-18 juli) Circuit Zandvoort | |
| 08-08 | NKHTGT 2021 | Gamma Racing Day (6-8 augustus) TT Circuit Assen | |
| 05-09 | NKHTGT 2021 | NK HTGT Historic Racing (3-5 september) Circuit de Barcelona-Catalunya |  |
| 10-10 | NKHTGT 2021 | NK HTGT Historic Racing (8-10 oktober) Dijon |  |