| January 2021 | Series | Circuit | Country | Event/Distance |
|---|---|---|---|---|
| 9 January | Gulf 12 Hours | Bahrain | Bahrain | 12 Hours |
| 14/16 January | 24H Series | Dubai | Dubai | 24 Hours |
| 22/23 January | 24H Series | Yas Marina | Abu Dhabi | 6 Hours |
| 22/24 January | IMSA WeatherTech Sportscar Championship | Daytona | USA | Official Tests |
| 22/24 January | IMSA Prototype Challenge | Daytona | USA | |
| 28/31 January | IMSA WeatherTech Sportscar Championship | Daytona | USA | 24 Hours |
| 28/31 January | IMSA Michelin Pilot Challenge | Daytona | USA |
| February 2021 | Series | Circuit | Country | Event/Distance |
|---|---|---|---|---|
| 13/14 February | Asian Le Mans Series | Dubai Autodrome | Dubai | Round 1 & 2 |
| 19/20 February | Asian Le Mans Series | Yas Marina | Abu Dhabi | Round 3 & 4 |
| March 2021 | Series | Circuit | Country | Event/Distance |
|---|---|---|---|---|
| 5/7 March | GT World Challenge America | Sonoma | USA | |
| 5/7 March | GT4 America | Sonoma | USA | SprintX |
| 13/14 March | IMSA Prototype Challenge | Sebring | USA | |
| 17/20 March | IMSA Michelin Pilot Challenge | Sebring | USA | |
| 17/20 March | IMSA WeatherTech Sportscar Championship | Sebring | USA | 12 Hours |
| 20/21 March | Super Taikyu Series | Twin Ring Motegi | Japan | 5 Hours |
| 25/26 March | GT World Challenge Europe | Paul Ricard | France | Official Test Days |
| 26/27 March | 24H Series | Mugello | Italy | 12 Hours |
| 30/31 March | FIA WEC | Portimão | Portugal | Official Test Days |
| April 2021 | Series | Circuit | Country | Event/Distance |
|---|---|---|---|---|
| 3/5 April | FFSA GT4 France | Nogaro | France | |
| 10/11 April | Super GT Series | Okayama | Japan | 300km |
| 10/11 April | GT Cup | Donington National | UK | |
| 12/13 April | European Le Mans Series | Barcelona | Spain | Official Test |
| 14 April | Michelin Le Mans Cup | Barcelona | Spain | Official Test |
| 16/17 April | Michelin Le Mans Cup | Barcelona | Spain | 2 Hours |
| 16/17 April | Ligier European Series | Barcelona | Spain | 2x 1 hour |
| 17/18 April | Super Taikyu Series | Sportsland Sugo | Japan | 2 x 3 Hours |
| 16/18 April | European Le Mans Series | Barcelona | Spain | 4 Hours |
| 16/18 April | GT4 European Series | Monza | Italy | |
| 16/18 April | GT World Challenge Europe | Monza | Italy | Endurance |
| 24/24 April | 24H Series | Paul Ricard | France | 12 Hours |
| 26/27 April | FIA WEC | Spa Francorchamps | Belgium | Prologue test |
| May 2021 | Series | Circuit | Country | Event/Distance |
|---|---|---|---|---|
| 29 April/1 May | FIA WEC | Spa Francorchamps | Belgium | 6 Hours |
| 30 April/2 May | GT World Challenge America | CoTA | USA | |
| 30 April/2 May | GT4 America | CoTA | USA | |
| 1/2 May | GT Cup | Brands Hatch GP | UK | |
| 3/4 May | Super GT Series | Fuji Speedway | Japan | 500km |
| 7/9 May | GT World Challenge Europe | Magny-Cours | France | Sprint |
| 7/9 May | FFSA GT4 France | Magny-Cours | France | |
| 14/15 May | Ligier European Series | Red Bull Ring | Austria | |
| 14/16 May | ADAC GT Masters | Oschersleben | Germany | |
| 14/16 May | IMSA WeatherTech Sportscar Championship | Mid-Ohio | USA | 2hrs 40 mins |
| 14/16 May | IMSA Michelin Pilot Challenge | Mid-Ohio | USA | |
| 14/16 May | IMSA Prototype Challenge | Mid-Ohio | USA | |
| 14/16 May | European Le Mans Series | Red Bull Ring | Austria | 4 Hours |
| 14/16 May | International GT Open | Paul Ricard | France | |
| 21/23 May | Super Taikyu | Fuji Speedway | Japan | Fuji Super TEC 24 Hours |
| 21/23 May | GT World Challenge America | Canadian Tire Motorsport Park | Canada | |
| 21/23 May | GT4 America | Canadian Tire Motorsport Park | Canada | SprintX |
| 22/23 May | British GT Championship | Brands Hatch GP | UK | 2 Hours |
| 22/23 May | 24H Series | Hockenheimring | Germany | 12 Hours |
| 28/30 May | GT World Challenge Europe | Circuit Paul Ricard | France | Endurance |
| 28/30 May | GT4 European Series | Paul Ricard | France | |
| 29/30 May | GT World Challenge Asia | Sepang | Malaysia | 2x 1hr GT3/4 |
| June 2021 | Series | Circuit | Country | Event/Distance |
|---|---|---|---|---|
| 4/5 June | Michelin Le Mans Cup | Paul Ricard | France | 2 Hours |
| 4/6 June | European Le Mans Series | Paul Ricard | France | 4 Hours |
| 4/6 June | FFSA GT4 France | Albi | France | |
| 5/6 June | GT Cup | Snetterton 300 | UK | |
| 3/7 June | Nürburgring 24 Hours | Nürburgring | Germany | 24 Hours |
| 11/13 June | IMSA WeatherTech Sportscar Championship | Belle Isle Detroit | USA | 1hr 40 mins |
| 11/13 June | FIA WEC | Portimao | Portugal | 6 Hours |
| 11/13 June | ADAC GT Masters | Red Bull Ring | Austria | |
| 11/13 June | GT World Challenge America | VIR | USA | |
| 11/13 June | GT4 America | VIR | USA | SprintX |
| 18/20 June | GT World Challenge Europe | Zandvoort | Holland | |
| 18/20 June | GT4 European Series | Zandvoort | Holland | |
| 18/20 June | International GT Open | Spa Francorchamps | Belgium | |
| 19/20 June | GT World Challenge Asia | Sepang | Malaysia | GT3/4 + GT Sprint Asia 2x races |
| 22/23 June | GT World Challenge Europe | Spa Francorchamps | Belgium | Spa 24 Test Days |
| 24/27 June | IMSA WeatherTech Sportscar Championship | Watkins Glen | USA | 6 Hours |
| 24/27 June | IMSA Michelin Pilot Challenge | Watkins Glen | USA | |
| 26/27 June | British GT Championship | Silverstone 500 | UK | 3 Hours |
| July 2021 | Series | Circuit | Country | Event/Distance |
|---|---|---|---|---|
| 1/2 July | IMSA WeatherTech Sportscar Championship | Watkins Glen | USA | 2hrs 40 mins |
| 1/2 July | IMSA Michelin Pilot Challenge | Watkins Glen | USA | |
| 1/2 July | IMSA Prototype Challenge | Watkins Glen | USA | |
| 3 July | GT Cup | Oulton Park Int | UK | |
| 1/4 July | Le Mans Classic | Le Mans | France | |
| 2/4 July | GT World Challenge Europe | Misano | Italy | Sprint |
| 3/4 July | GT World Challenge Asia | Buriram | Thailand | 2x 1hr GT3/4 |
| 9/10 July | Michelin Le Mans Cup | Monza | Italy | |
| 9/10 July | Ligier European Series | Monza | Italy | |
| 9/11 July | International GT Open | Hungaroring | Hungary | |
| 9/11 July | European Le Mans Series | Monza | Italy | 4 Hours |
| 9/11 July | ADAC GT Masters | Zandvoort | Netherlands | |
| 10/11 July | British GT Championship | Donington Park | UK | 2 Hours |
| 16/17 July | IMSA WeatherTech Sportscar Championship | Lime Rock Park | USA | 2hrs 40 mins |
| 16/17 July | IMSA Michelin Pilot Challenge | Lime Rock Park | USA | |
| 16/18 July | FIA WEC | Monza | Italy | 6 Hours |
| 16/18 July | 24H Series | Portimao | Portugal | 24 Hours |
| 17/18 July | Super GT Series | Twin Ring Motegi | Japan | 300km |
| 23/25 July | FFSA GT4 France | Spa Francorchamps | Belgium | |
| 24/25 July | British GT Championship | Spa Francorchamps | Belgium | 2 Hours |
| August 2021 | Series | Circuit | Country | Event/Distance |
|---|---|---|---|---|
| 29 July/1 August | GT World Challenge Europe & Intercontinental GT Challenge | Spa Francorchamps | Belgium | 24 Hours |
| 29 July/1 August | GT4 European Series | Spa Francorchamps | Belgium | |
| 31 July/1 August | Super Taikyu Series | Autopolis | Japan | 5 Hours |
| 6/8 August | ADAC GT Masters | Nürburgring | Germany | |
| 6/8 August | IMSA WeatherTech Sportscar Championship | Road America | USA | 2hrs 40 mins |
| 6/8 August | IMSA Michelin Pilot Challenge | Road America | USA | |
| 7/8 August | British GT | Snetterton | UK | 2x 1 Hour |
| 7/8 August | GT World Challenge Asia | Motegi | Japan | 2x 1hr GT3/4 |
| 14/15 August | GT Cup | Silverstone GP | UK | |
| 20/21 August | Michelin Le Mans Cup | Le Mans | France | 2x 55 Minutes |
| 21/22 August | FIA WEC | Le Mans | France | 24 Hours |
| 21/22 August | Super GT Series | Suzuka | Japan | 300km |
| 27/28 August | Ligier European Series | Paul Ricard | France | 2x 1 Hour |
| 27/29 August | FFSA GT4 France | Lédenon | France | |
| 27/29 August | GT4 America | Road America | USA | SprintX |
| 27/29 August | GT World Challenge America | Road America | USA | |
| 28/29 August | GT World Challenge Europe | Brands Hatch | UK | Sprint |
| September 2021 | Series | Circuit | Country | Event/Distance |
|---|---|---|---|---|
| 3/5 September | 24H Series | Barcelona | Spain | 24 Hours |
| 3/5 September | GT4 European Series | Nürburgring | Germany | |
| 3/5 September | GT World Challenge Europe | Nürburgring | Germany | Endurance |
| 10/12 September | IMSA WeatherTech Sportscar Championship | Laguna Seca | USA | 2hrs 40 mins |
| 10/12 September | IMSA Michelin Pilot Challenge | Laguna Seca | USA | |
| 10/12 September | ADAC GT Masters | Lausitzring | Germany | |
| 10/12 September | International GT Open | Red Bull Ring | Austria | |
| 11/12 September | Super GT Series | Sportsland Sugo | Japan | 300km |
| 11/12 September | British GT Championship | Oulton Park | UK | 2x 1 Hour |
| 11/12 September | GT World Challenge Asia | Shanghai | China | 2x 1hr GT3/4 |
| 17/18 September | Michelin Le Mans Cup | Spa Francorchamps | Belgium | 2 Hours |
| 17/18 September | Ligier European Series | Spa Francorchamps | Belgium | 2x 1 Hour |
| 17/19 September | European Le Mans Series | Spa Francorchamps | Belgium | 4 Hours |
| 17/19 September | GT4 America | Watkins Glen | USA | SprintX |
| 17/19 September | GT World Challenge America | Watkins Glen | USA | |
| 18/19 September | GT Cup | Donington GP | UK | |
| 18/19 September | Super Taikyu Series | Suzuka | Japan | 5 Hours |
| 24/25 September | IMSA WeatherTech Sportscar Championship | Long Beach | USA | 100 mins |
| 24/26 September | FIA WEC | Fuji | Japan | 6 Hours |
| 24/26 September | GT4 European Series | Barcelona | Spain | |
| 24/26 September | International GT Open | Monza | Italy | |
| 25/26 September | GT World Challenge Europe | Valencia | Spain | Sprint |
| October 2021 | Series | Circuit | Country | Event/Distance |
|---|---|---|---|---|
| 1/3 October | ADAC GT Masters | Sachsenring | Germany | |
| 1/3 October | FFSA GT4 France | Paul Ricard | France | |
| 2/3 October | 24H Series | Autodromo Pergusa | Sicily | Coppa Florio 12 Hours |
| 2/3 October | GT Cup | Snetterton 300 | UK | |
| 8/10 October | GT World Challenge Europe | Barcelona | Spain | Endurance |
| 8/10 October | Michelin Pilot Challenge | VIR | USA | 2 Hours |
| 8/10 October | IMSA Prototype Challenge | VIR | USA | 1 Hour 45 Minutes |
| 8/10 October | IMSA WeatherTech Sportscar Championship | VIR | USA | 2 Hours 40 Minutes |
| 15/17 October | GT World Challenge America | Indianapolis | USA | |
| 15/17 October | GT4 America | Indianapolis | USA | SprintX |
| 15/17 October | Intercontinental GT Challenge | Indianapolis | USA | 8 Hours |
| 16/17 October | British GT | Donington Park | UK | 2 Hours |
| 16/17 October | GT World Challenge Asia | Zhuhai | China | 2x 1hr GT3/4 + GT Sprint Asia 2x races |
| 22/23 October | Ligier European Series | Portimao | Portugal | 2x 1 Hour |
| 22/24 October | Michelin Le Mans Cup | Portimao | Portugal | 2 Hours |
| 22/24 October | European Le Mans Series | Portimao | Portugal | 4 Hours |
| 22/24 October | ADAC GT Masters | Hockenheimring | Germany | |
| 22/24 October | International GT Open | Barcelona | Spain | |
| 23/24 October | Super GT Series | Autopolis | Japan | 300km |
| November 2021 | Series | Circuit | Country | Event/Distance |
|---|---|---|---|---|
| 6/7 November | Super GT Series | Twin Ring Motegi | Japan | 300km |
| 11/13 November | IMSA WeatherTech Sportscar Championship | Road Atlanta | USA | 10 Hours (PLM) |
| 11/13 November | Michelin Pilot Challenge | Road Atlanta | USA | 2 Hours |
| 11/13 November | IMSA Prototype Challenge | Road Atlanta | USA | 1 Hour 45 Minutes |
| 13/14 November | Super Taikyu | Okayama International Circuit | Japan | 2 x 3 Hours |
| 18/20 November | FIA WEC | Bahrain | Bahrain | 6 Hours |
| 18/20 November | 24H Series | Sebring | USA | 24 Hours |
| 27/28 November | Super GT Series | Fuji Speedway | Japan | 300km |
| December 2021 | Series | Circuit | Country | Event/Distance |
|---|---|---|---|---|
| 2/4 | Intercontinental GT Challenge | Kyalami | South Africa | 9 Hours |