Autosport Kalender
| 17-04 | Nürburgring Langstrecken-Serie 2021 | 45. DMV 4-Stunden-Rennen Nurburgring |  |
| 17-04 | Michelin Le Mans Cup 2021 | 1 - Barcelona Circuit de Barcelona-Catalunya |  |
| 18-04 | NKHTGT 2021 | NK HTGT Historic Racing (16-18 april) Hockenheimring | |
| 18-04 | EuroNASCAR PRO - EuroNASCAR 2 - 2021 | 1-2 Nascar Whelen Spain (17-18 april) Circuit Ricardo Tormo | |
| 18-04 | NTT IndyCar Series 2021 | Honda Indy Grand Prix of Alabama Barber Motorsports Park |  |
| 18-04 | NASCAR Cup Series 2021 | Toyota Owners 400 Richmond International Raceway | |
| 18-04 | F4 British Championship 2021 | F4 British Championship (4-5-6) Donington Park |  |
| 18-04 | FIA Formula 1 Championship 2021 | GP San Marino Imola Circuit Enzo e Dino Ferrari |  |
| 18-04 | European Le Mans Series 2021 | 4 Hours of Barcelona Circuit de Barcelona-Catalunya | |
| 18-04 | GT World Challenge Europe Endurance Cup 2021 | GT World Challenge Europe Endurance Cup (16-18 april)) Monza |  |
| 18-04 | GT4 European Series 2021 | GT4 European Series (Rd 1-2) Monza | |
| 22-04 | DNRT 2021 | Alle auto's - Trainingsdag Spa-Francorchamps |  |
| 24-04 | Nascar Xfinity Series 2021 | NASCAR Xfinity Series Race at Talladega Talladega Superspeedway | |
| 25-04 | British GT 2021 | British GT (Rd 3 - 4) Snetterton | |
| 25-04 | Monaco GP Historique 2021 | Monaco Historic Grand Prix (24-25 april) Monte Carlo |  |
| 25-04 | NTT IndyCar Series 2021 | Firestone Grand Prix of St. Petersburg Streets of Downtown St Petersburg | |
| 25-04 | Euroformula Open 2021 | Euroformula Open Autodromo Internacional Do Algarve |  |
| 25-04 | NASCAR Cup Series 2021 | Geico 500 Talladega Superspeedway | |
| 25-04 | Indy Lights 2021 | St. Petersburg Grand Prix (R3-R4) Streets of Downtown St Petersburg | |
| 25-04 | 24H Series 2021 | Ronde 3: Hankook 12H Spa-Francorchamps (23-25 april) Spa-Francorchamps | |
| 25-04 | Indy Pro 2000 2021 | St. Petersburg Grand Prix (R3-R4) Streets of Downtown St Petersburg | |
| 25-04 | BRDC British Formula 3 2021 | BRDC British Formula 3 Championship Snetterton | |
| 25-04 | Formula Regional European Championship 2021 | Creventic weekend (R1-R2) Spa-Francorchamps | |
| 25-04 | International GT Open 2021 | International GT Open (Rd1) Autodromo Internacional Do Algarve | |
| 25-04 | USF2000 2021 | St. Petersburg Grand Prix (R3-R4) Streets of Downtown St Petersburg | |
| 30-04 | ACNN 2021 | Alle klassen Circuit Zolder | |
| 01-05 | FIA WEC 2021 | 2 - Total 6 Hours of Spa-Francorchamps Spa-Francorchamps | |
| 01-05 | Nürburgring Langstrecken-Serie 2021 | 62. ADAC ACAS Cup Nurburgring | |
| 01-05 | NTT IndyCar Series 2021 | Genesys 300 Texas Motor Speedway | |
| 02-05 | NTT IndyCar Series 2021 | Texas Indy 300 Texas Motor Speedway | |
| 02-05 | NASCAR Cup Series 2021 | NASCAR Cup Series Race at Kansas Kansas Speedway | |
| 02-05 | GT World Challenge Europe Sprint Cup 2021 | GT World Challenge Europe Sprint Cup (1-2 mei)) Brands Hatch GP Circuit | |
| 02-05 | FIA Formula 1 Championship 2021 | GP Portugal Autodromo Internacional Do Algarve | |
| 02-05 | Motor Racing Legends Events 2021 | Donington Historic Festival (1-2 mei) Donington Park | |
| 08-05 | Nascar Xfinity Series 2021 | NASCAR Xfinity Series Race at Darlington Darlington Raceway | |
| 08-05 | DNRT 2021 | DNRT - 8H Endurance Circuit Zandvoort |  |
| 09-05 | Porsche Sprint Trophy Benelux 2021 | New Race Festival Circuit Zolder | |
| 09-05 | FFSA Acadamy F4 2021 | French F4 Championship Magny-Cours |  |
| 09-05 | Formula Regional European Championship 2021 | Spanish Grand Prix (R3-R4) Circuit de Barcelona-Catalunya | |
| 09-05 | NASCAR Cup Series 2021 | NASCAR Cup Series Race at Darlington Darlington Raceway | |