| 5.4.2021 | FFSA GT4 Nogaro | 6 | | Bottemanne / Martins | Team Fullmotorsport | 20th/16th |
| 5.4.2021 | FFSA GT4 Nogaro | 21 | | Esteves / Beltoise | Sainteloc Junior Team | DNF/25th |
| 5.4.2021 | FFSA GT4 Nogaro | 27 | | Blanchemain / Moullin-Traffort | Team Fullmotorsport | 21st/20th |
| 5.4.2021 | FFSA GT4 Nogaro | 42 | | Michal / Guilvert | Sainteloc Junior Team | 13th/24th |
| 11.4.2021 | 300 km Okayama | 6 | | Motoyama / Katayama | Team LeMans with Motoyama Racing | 36th |
| 11.4.2021 | 300 km Okayama | 21 | | Kawabata / Shinohara | Audi Team Hitotsuyama | 27th |
| 18.4.2021 | GT4 Euro Monza | 4 | | Consani / Lariche | Team Speedcar | 11th/14th |
| 18.4.2021 | GT4 Euro Monza | 5 | | Hodier / Courroye | Team Speedcar | 21st/DNS |
| 18.4.2021 | GT4 Euro Monza | 9 | | Gisy / Kelleners | Hella Pagid - Racing One | 26th/27th |
| 18.4.2021 | GT4 Euro Monza | 14 | | Seyler / Meyuhas | Sainteloc Racing | 13th/23rd |
| 18.4.2021 | GT4 Euro Monza | 21 | | Curson Faessel / Stievenart | Sainteloc Racing | 34th/28th |
| 18.4.2021 | 3 h Monza | 25 | | Tambay / Cougnaud / Haase | Sainteloc Racing | DNF |
| 18.4.2021 | 3 h Monza | 26 | | Winkelhock / Hutchison / Vervisch | Sainteloc Racing | 9th |
| 18.4.2021 | 3 h Monza | 30 | | Pull / Hall / Goethe | Team WRT | 6th |
| 18.4.2021 | 3 h Monza | 31 | | Tomita / Bird / Eriksen | Team WRT | 8th |
| 18.4.2021 | 3 h Monza | 32 | | Vanthoor / van der Linde / Weerts | Team WRT | DNF |
| 18.4.2021 | GT2 Euro Monza | 33 | | Fjordbach / Patterson | High Class Racing | 1st/4th |
| 18.4.2021 | GT4 Euro Monza | 42 | | Michal / Guilvert | Sainteloc Racing | 7th/3rd |
| 18.4.2021 | 3 h Monza | 66 | | Drudi / Mies / Schramm | Attempto Racing | 12th |
| 18.4.2021 | GT4 Euro Monza | 69 | | Hamon / Blanchemain | Team Fullmotorsport | 18th/19th |
| 18.4.2021 | GT4 Euro Monza | 77 | | Clement / Iannetta | Team Fullmotorsport | 5th/5th |
| 18.4.2021 | GT2 Euro Monza | 81 | | Longin / Guelinckx | PK Carsport | 5th/1st |
| 18.4.2021 | GT2 Euro Monza | 88 | | Pirri / Ratel | LP Racing | DNF/2nd |
| 18.4.2021 | 3 h Monza | 99 | | Marschall / Aka / Mosca | Attempto Racing | 15th |
| 24.4.2021 | 12 h Paul Ricard | 18 | | Doppelmayr / Kaffer / Erhart / Herberger | Rutronik Racing by TECE | 3rd |
| 24.4.2021 | 12 h Paul Ricard | 88 | | Dontje / Müller / Paque / Rogalski | Car Collection Motorsport | 4th |
| 2.5.2021 | GT America Austin | 07 | | Jason Golan | GMG Racing | DNS/19th |
| 2.5.2021 | GT4 America Austin | 8 | | Sabo / Lee | GMG Racing | 16th/26th |
| 2.5.2021 | GT America Austin | 8 | | Elias Sabo | GMG Racing | 17th/18th |
| 2.5.2021 | Italian GT Monza | 12 | | Agostini / Ferrari | Audi Sport Italia | 4th/2nd |
| 2.5.2021 | Italian GT Monza | 14 | | Mancinelli / Postiglione | Audi Sport Italia | 2nd/5th |
| 2.5.2021 | GT America Austin | 27 | | Jason Daskalos | Daskalos Motorsports | 3rd/DNF |
| 2.5.2021 | GT4 America Austin | 29 | | Novikov / Trinkler | Rearden Racing | 24th/29th |
| 2.5.2021 | GT America Austin | 76 | | Alex Welch | ROTR Motorsport | 16th/16th |
| 2.5.2021 | GT4 America Austin | 888 | | Kozarov / Westphal | Rearden Racing | 9th/22nd |
| 2.5.2021 | GT4 America Austin | 930 | | Siegel / Dyer | CarBahn | 32nd/30th |
| 4.5.2021 | 500 km Fuji | 6 | | Motoyama / Katayama | Team LeMans with Motoyama Racing | 35th |
| 4.5.2021 | 500 km Fuji | 21 | | Kawabata / Shinohara | Audi Team Hitotsuyama | 29th |
| 9.5.2021 | Australian GT The Bend | 3 | | Eric Constantinidis | OK Communication | 18th/13th |
| 9.5.2021 | Australian GT The Bend | 5 | | Greg Taylor | Arris Property Group | 4th/8th |
| 9.5.2021 | FFSA GT4 Magny-Cours | 5 | | Huteau / Hamon | Team Fullmotorsport | 25th/19th |
| 9.5.2021 | FFSA GT4 Magny-Cours | 6 | | Bottemanne / Martins | Team Fullmotorsport | 4th/17th |
| 9.5.2021 | FFSA GT4 Magny-Cours | 14 | | Saleilles / Tambay | Sainteloc Junior Team | DNF/6th |
| 9.5.2021 | Australian GT The Bend | 17 | | Mark Rosser | What do you Meme? | 5th/DNF |
| 9.5.2021 | FFSA GT4 Magny-Cours | 21 | | Esteves / Beltoise | Sainteloc Junior Team | 5th/1st |
| 9.5.2021 | Australian GT The Bend | 23 | | Matthew Stoupas | K.F.C. | 10th/7th |
| 9.5.2021 | Australian GT The Bend | 24 | | Bates / O'Keeffe | Bostik Racing / AFS Logistics | 3rd/5th |
| 9.5.2021 | SRO GT Sprint Magny-Cours | 25 | | Roussel / Haase | Sainteloc Racing | DNF/11th |
| 9.5.2021 | SRO GT Sprint Magny-Cours | 26 | | Panis / Vervisch | Sainteloc Racing | 26th/6th |
| 9.5.2021 | FFSA GT4 Magny-Cours | 27 | | Blanchemain / Moullin-Traffort | Team Fullmotorsport | 9th/16th |
| 9.5.2021 | SRO GT Sprint Magny-Cours | 30 | | Goethe / van der Linde | Team WRT | 11th/DNF |
| 9.5.2021 | SRO GT Sprint Magny-Cours | 31 | | Bird / Tomita | Team WRT | 24th/10th |
| 9.5.2021 | SRO GT Sprint Magny-Cours | 32 | | Weerts / Vanthoor | Team WRT | 1st/2nd |
| 9.5.2021 | FFSA GT4 Magny-Cours | 42 | | Michal / Guilvert | Sainteloc Junior Team | 1st/3rd |
| 9.5.2021 | FFSA GT4 Magny-Cours | 44 | #WUAGT44S6J7940050 | Buffin / Ayari | Team Speedcar | 22nd/26th |
| 9.5.2021 | Australian GT The Bend | 55 | | Brad Schumacher | Schumacher Motorsport / Kelso Electrical | 8th/4th |
| 9.5.2021 | SRO GT Sprint Magny-Cours | 66 | | Aka / Mies | Attempto Racing | 19th/18th |
| 9.5.2021 | Australian GT The Bend | 67 | | Bill Papadimitriou | Forum Group | 11th/14th |
| 9.5.2021 | Australian GT The Bend | 77 | | Vince Tresoriero | Forum | DNF/15th |
| 9.5.2021 | Australian GT The Bend | 91 | | Arthur Abrahams | Canon Foods | 13th/11th |
| 9.5.2021 | SRO GT Sprint Magny-Cours | 99 | | Mosca / Drudi | Attempto Racing | 6th/12th |
| 9.5.2021 | Australian GT The Bend | 124 | | Higgon / Stokell | K.F.C. | 16th/DNF |
| 9.5.2021 | Australian GT The Bend | 777 | | Shahin / Tander | The Bend Motorsport Park / Valvoline | 2nd/1st |
| 15.5.2021 | GT2 Euro Hockenheim | 33 | | Fjordbach / Patterson | High Class Racing | 1st/1st |
| 15.5.2021 | GT2 Euro Hockenheim | 81 | | Longin / Guelinckx | PK Carsport | 3rd/6th |
| 15.5.2021 | GT2 Euro Hockenheim | 88 | | Pirri / Ratel | LP Racing | 6th/2nd |
| 16.5.2021 | ADAC GT Oschersleben | 3 | | Keilwitz / Asch | Aust Motorsport | 16th/17th |
| 16.5.2021 | ADAC GT Oschersleben | 4 | | Owega / Niederhauser | Phoenix Racing | 10th/18th |
| 16.5.2021 | ADAC GT Oschersleben | 11 | | Erhart / Kaffer | Rutronik Racing by Tece | DNF/19th |
| 16.5.2021 | GT Open Paul Ricard | 22 | #AS4SAFGT202000136 | Carroll / Balfe | Balfe Motorsport | 6th/11th |
| 16.5.2021 | ADAC GT Oschersleben | 28 | | Trefz / Haase | Montaplast by Land Motorsport | 24th/13th |
| 16.5.2021 | ADAC GT Oschersleben | 29 | | Feller / Mies | Montaplast by Land Motorsport | 3rd/5th |
| 16.5.2021 | ADAC GT4 Oschersleben | 32 | | Reiter / Rogalski | Seyffarth Motorsport | 18th/11th |
| 16.5.2021 | ADAC GT Oschersleben | 32 | | Weerts / Vanthoor | Team WRT | 11th/12th |
| 16.5.2021 | ADAC GT Oschersleben | 33 | #AS4SAFGT201700094 | Schramm / Marschall | Rutronik Racing by Tece | 6th/DNF |
| 16.5.2021 | 2 h 40 min Mid-Ohio | 39 | | Heistand / Westphal | CarBahn with Peregrine Racing | 18th |
| 16.5.2021 | ADAC GT Oschersleben | 54 | | Reicher / Siedler | Yaco Racing | 22nd/11th |
| 16.5.2021 | ADAC GT Oschersleben | 69 | | Spengler / Winkelhock | Car Collection Motorsport | 17th/DNF |
| 16.5.2021 | ADAC GT4 Oschersleben | 77 | | Springob / Southern | T3 Motorsport | 13th/7th |
| 16.5.2021 | ADAC GT4 Oschersleben | 99 | | Mayer / Mayer | T3 Motorsport | 17th/17th |
| 23.5.2021 | 3 h Pergusa | 12 | | Drudi / Ferrari / Agostini | Audi Sport Italia | 1st |
| 23.5.2021 | 3 h Pergusa | 14 | | Salaquarda / Basz / Postiglione | Audi Sport Italia | DNF |
| 23.5.2021 | 12 h Hockenheim | 18 | | Doppelmayr / Kaffer / Erhart / Herberger | Rutronik Racing by TECE | 5th |
| 23.5.2021 | 12 h Hockenheim | 34 | | Edelhoff / Grimm / Edelhoff | Car Collection Motorsport | 6th |
| 23.5.2021 | British GT Brands Hatch | 42 | | Williams / Fielding | Steller Motorsport | 17th |
| 23.5.2021 | 12 h Hockenheim | 88 | | Lechmann / Paque / Piemonte / Kranenberg | Car Collection Motorsport | 7th |
| 23.5.2021 | 12 h Hockenheim | 408 | | | Car Collection Motorsport | DNA |
| 29.5.2021 | 1000 km Paul Ricard | 24 | | Dontje / Kolb / Reicher | Car Collection Motorsport | 33rd |
| 29.5.2021 | 1000 km Paul Ricard | 25 | | Tambay / Cougnaud / Haase | Sainteloc Racing | 15th |
| 29.5.2021 | 1000 km Paul Ricard | 26 | | Winkelhock / Hutchison / Vervisch | Sainteloc Racing | 10th |
| 29.5.2021 | 1000 km Paul Ricard | 30 | | Pull / Hall / Goethe | Team WRT | 19th |
| 29.5.2021 | 1000 km Paul Ricard | 31 | | Tomita / Bird / Eriksen | Team WRT | DNF |
| 29.5.2021 | 1000 km Paul Ricard | 32 | | Vanthoor / van der Linde / Weerts | Team WRT | 2nd |
| 29.5.2021 | 1000 km Paul Ricard | 66 | | Drudi / Mies / Schramm | Attempto Racing | 14th |
| 29.5.2021 | 1000 km Paul Ricard | 99 | | Marschall / Aka / Hofer | Attempto Racing | 18th |
| 30.5.2021 | GT4 Euro Paul Ricard | 5 | | Hodier / Courroye | Team Speedcar | 13th/14th |
| 30.5.2021 | GT4 Euro Paul Ricard | 9 | | Gisy / Kelleners | Hella Pagid - Racing One | 30th/29th |
| 30.5.2021 | GT4 Euro Paul Ricard | 21 | | Stievenart / Curson Faessel | Sainteloc Racing | 34th/31st |
| 30.5.2021 | GT4 Euro Paul Ricard | 42 | | Michal / Guilvert | Sainteloc Racing | 9th/3rd |
| 30.5.2021 | GT4 Euro Paul Ricard | 69 | | Hamon / Blanchemain | Team Fullmotorsport | 20th/22nd |