| 13.2.2021 | 4 h Dubai I | 40 | 991 GT3 R | Jefferies / Andlauer / Ferté | GPX Racing | 17th |
| 14.2.2021 | 4 h Dubai II | 40 | 991 GT3 R | Jefferies / Andlauer / Ferté | GPX Racing | 14th |
| 14.2.2021 | 4 h Dubai II | 93 | 991 GT3 R | Görig / Au / Bachler | Precote Herberth Motorsport | 22nd |
| 14.2.2021 | 4 h Dubai II | 99 | 991 GT3 R | Bohn / Renauer / Renauer | Precote Herberth Motorsport | 18th |
| 19.2.2021 | 4 h Abu Dhabi I | 40 | 991 GT3 R | Jefferies / Andlauer / Ferté | GPX Racing | 11th |
| 19.2.2021 | 4 h Abu Dhabi I | 93 | 991 GT3 R | Görig / Au / Bachler | Precote Herberth Motorsport | 23rd |
| 19.2.2021 | 4 h Abu Dhabi I | 99 | 991 GT3 R | Bohn / Renauer / Renauer | Precote Herberth Motorsport | 12th |
| 20.2.2021 | 4 h Abu Dhabi II | 40 | 991 GT3 R | Jefferies / Andlauer / Ferté | GPX Racing | 28th |
| 20.2.2021 | 4 h Abu Dhabi II | 93 | 991 GT3 R | Görig / Au / Bachler | Precote Herberth Motorsport | 26th |
| 20.2.2021 | 4 h Abu Dhabi II | 99 | 991 GT3 R | Bohn / Renauer / Renauer | Precote Herberth Motorsport | 17th |
| 7.3.2021 | GT4 America Sonoma | 7 | 718 Cayman GT4 Clubsport MR | Owen / Gibbons | Nolasport with OGH | 26th/24th |
| 7.3.2021 | GT4 America Sonoma | 17 | 718 Cayman GT4 Clubsport MR | Rappaport / Orcutt | TRG - The Racers Group | 31st/28th |
| 7.3.2021 | SRO GT America Sonoma | 20 | 991 GT3 R II | Poordad / Heylen | Wright Motorsports | 3rd/4th |
| 7.3.2021 | GT America Sonoma | 32 | 991 GT3 R II | Kyle Washington | GMG Racing | 4th/6th |
| 7.3.2021 | GT4 America Sonoma | 43 | 718 Cayman GT4 Clubsport MR | Straus / Nielsen | Murillo Racing | DNF/19th |
| 7.3.2021 | GT America Sonoma | 45 | 991 GT3 R II | Charles Luck | Wright Motorsports | 2nd/2nd |
| 7.3.2021 | GT4 America Sonoma | 46 | 718 Cayman GT4 Clubsport MR | Walker / Byrne | Nolasport | 5th/17th |
| 7.3.2021 | GT4 America Sonoma | 47 | 718 Cayman GT4 Clubsport MR | Travis / Hart | Nolasport | 1st/1st |
| 7.3.2021 | GT America Sonoma | 49 | 718 Cayman GT4 Clubsport MR | Jason Hall | Nolasport | unused |
| 7.3.2021 | GT America Sonoma | 54 | 718 Cayman GT4 Clubsport MR | Tim Pappas | Black Swan Racing | DNF/12th |
| 7.3.2021 | GT4 America Sonoma | 54 | 718 Cayman GT4 Clubsport MR | Pappas / Bleekemolen | Black Swan Racing | 11th/7th |
| 7.3.2021 | GT4 America Sonoma | 66 | 718 Cayman GT4 Clubsport MR | DeBoer / Pumpelly | TRG - The Racers Group | 19th/5th |
| 7.3.2021 | GT America Sonoma | 69 | 718 Cayman GT4 Clubsport MR | Dan Miller | ST Racing | 14th/19th |
| 7.3.2021 | GT America Sonoma | 120 | 718 Cayman GT4 Clubsport MR | Adam Adelson | Premier Racing | 9th/11th |
| 14.3.2021 | Australian GT Phillip Island | 4 | 991 GT3 R II | Grove / Grove | Grove Group / Dasher + Fisher Gin | 6th/2nd |
| 20.3.2021 | 12 h Sebring | 9 | 991 GT3 R | Robichon / Vanthoor / Kern | Pfaff Motorsports | 18th |
| 20.3.2021 | 12 h Sebring | 16 | 991 GT3 R | Long / Heylen / Hindman | Wright Motorsports | 19th |
| 20.3.2021 | 12 h Sebring | 79 | 991 RSR II 19 | MacNeil / Jaminet / Campbell | WeatherTech Racing | 8th |
| 20.3.2021 | 12 h Sebring | 88 | 991 GT3 R | Nielsen / Legge / Figueiredo | Team Hardpoint EBM | 22nd |
| 20.3.2021 | 12 h Sebring | 99 | 991 GT3 R | Ferriol / Bamber / Estep | Team Hardpoint EBM | 28th |
| 26.3.2021 | SRO Test Paul Ricard | 23 | 991 GT3 R II | Kasperlik / Schöll / Apothéloz | Allied Racing | 31st |
| 26.3.2021 | SRO Test Paul Ricard | 54 | 991 GT3 R II | Cairoli / Engelhart | Dinamic Motorsport | 4th |
| 26.3.2021 | SRO Test Paul Ricard | 56 | 991 GT3 R II | Dumas / Rizzoli / Pedersen | Dinamic Motorsport | 9th |
| 27.3.2021 | 12 h Mugello | 7 | 991 GT3 R II | Pampanini / Calamia / Jacoma | Dinamic Motorsport | 3rd |
| 27.3.2021 | 12 h Mugello | 66 | 991 GT3 R II | Decurtins / Lauck / Basseng | Haegeli by T2 Racing | 5th |
| 27.3.2021 | 12 h Mugello | 91 | 991 GT3 R II | Allemann / Bohn / Renauer / Renauer | Herberth Motorsport | 1st |
| 27.3.2021 | 12 h Mugello | 92 | 991 GT3 R II | Häring / "Gonzales" / Aust / Seefried | Herberth Motorsport | 4th |
| 27.3.2021 | 12 h Mugello | 93 | 991 GT3 R II | | Herberth Motorsport | DNA |
| 27.3.2021 | 12 h Mugello | 206 | 718 Cayman GT4 Clubsport MR | Hensen / Wils | Speed Lover | 24th |
| 27.3.2021 | 12 h Mugello | 412 | 718 Cayman GT4 Clubsport MR | de Kant / Herbst / Spavone / Presezzi / Fogliani | Centri Porsche Ticino | 26th |
| 27.3.2021 | 12 h Mugello | 909 | 991 GT3 Cup II | Mukovoz / Sidoruk / Peregudov | DUWO Racing | 21st |
| 27.3.2021 | 12 h Mugello | 910 | 991 GT3 Cup II | Adomavičius / Gelžinis / Gelžinis | JUTA Racing | 13th |
| 27.3.2021 | 12 h Mugello | 918 | 991 GT3 Cup II | Mouez / Liquorish | Duell Race | DNA |
| 27.3.2021 | 12 h Mugello | 920 | 991 GT3 Cup II | Kasper / Werner / Klingelnberg / Arn | Stadler Motorsport | DNF |
| 27.3.2021 | 12 h Mugello | 924 | 991 GT3 Cup II | Mekvabishvili / Gadetskii / Corradina | PROFILDOORS by Huber Racing | 14th |
| 27.3.2021 | 12 h Mugello | 955 | 991 GT3 Cup II | Broggi / Nicolae / de Castro | Willi Motorsport by Ebimotors | 12th |
| 27.3.2021 | 12 h Mugello | 967 | 991 GT3 Cup II | Cordoni / Blom / Josephsohn / Josephsohn | GDL Racing | 27th |
| 27.3.2021 | 12 h Mugello | 969 | 991 GT3 Cup II | Rayneri / de Lorenzi / Fratti / Giubergia | GDL Racing | 34th |
| 27.3.2021 | 12 h Mugello | 973 | 991 GT3 Cup II | Giorgi / Peroni / Gnemmi / Donzelli | EBIMOTORS | 19th |
| 27.3.2021 | 12 h Mugello | 978 | 991 GT3 Cup II | Dons / Ooms / Bastien | Speed Lover | DNA |
| 27.3.2021 | 12 h Mugello | 979 | 991 GT3 Cup II | | Speed Lover | DNA |
| 27.3.2021 | 12 h Mugello | 994 | 991 GT3 Cup II | | Herberth Motorsport | DNA |
| 4.4.2021 | Australian GT Bathurst | 4 | 991 GT3 R II | Grove / Grove | Grove Group / Dasher + Fisher Gin | 5th/4th |
| 11.4.2021 | 300 km Okayama | 25 | 991 GT3 R | Matsui / Satou | Hoppy Team Tsuchiya | 21st |
| 17.4.2021 | LM Cup Barcelona | 2 | 991 GT3 R | Leutwiler / Andlauer | Pzoberer Zürichsee by TFT | 10th |
| 18.4.2021 | GT2 Euro Monza | 5 | 991 GT2 RS Clubsport II | Vergers / Rusteika | Speed Factory Racing | 3rd/3rd |
| 18.4.2021 | GT4 Euro Monza | 10 | 718 Cayman GT4 Clubsport MR | Gnemmi / Pera | Ebimotors | DNF/DNS |
| 18.4.2021 | GT4 Euro Monza | 20 | 718 Cayman GT4 Clubsport MR | Dressler / Fetzer | Allied Racing | 9th/DNF |
| 18.4.2021 | GT4 Euro Monza | 22 | 718 Cayman GT4 Clubsport MR | Sturm / Møller Madsen | Allied Racing | 31st/15th |
| 18.4.2021 | 3 h Monza | 22 | 991 GT3 R II | Campbell / Bamber / Jaminet | GPX Martini Racing | DNF |
| 18.4.2021 | GT4 Euro Monza | 26 | 718 Cayman GT4 Clubsport MR | Hartvig / Camathias | Allied Racing | 12th/36th |
| 18.4.2021 | GT4 Euro Monza | 37 | 718 Cayman GT4 Clubsport MR | Andrey Solukovtsev | Iskra Motorsport by Ebimotors | 36th/25th |
| 18.4.2021 | 3 h Monza | 54 | 991 GT3 R II | Cairoli / Bachler / Engelhart | Dinamic Motorsport | 1st |
| 18.4.2021 | 3 h Monza | 56 | 991 GT3 R II | Rizzoli / Pedersen / Dumas | Dinamic Motorsport | 10th |
| 18.4.2021 | GT4 Euro Monza | 75 | 718 Cayman GT4 Clubsport MR | Cerati / Canzian | Autorlando Sport | 23rd/29th |
| 18.4.2021 | GT4 Euro Monza | 76 | 718 Cayman GT4 Clubsport MR | Ghezzi / Giovanelli | Autorlando Sport | 27th/11th |
| 18.4.2021 | 4 h Barcelona | 77 | 991 RSR II 19 | Ried / Evans / Bruni | Proton Competition | 27th |
| 18.4.2021 | 4 h Barcelona | 93 | 991 RSR II 19 | Fassbender / Fernandez Laser / Lietz | Proton Competition | 31st |
| 18.4.2021 | 3 h Monza | 222 | 991 GT3 R II | Kasperlik / Apothéloz / Schöll | Team Allied-Racing | DNS |
| 18.4.2021 | GT4 Euro Monza | 718 | 718 Cayman GT4 Clubsport MR | Jacoma / Busnelli | Centri Porsche Ticino | 3rd/DNF |
| 18.4.2021 | GT4 Euro Monza | 911 | 718 Cayman GT4 Clubsport MR | de Kant / Spavone | Centri Porsche Ticino | 35th/20th |
| 18.4.2021 | GT4 Euro Monza | 992 | 718 Cayman GT4 Clubsport MR | Pampanini / Stürzinger | Centri Porsche Ticino | DNF/21st |
| 24.4.2021 | 12 h Paul Ricard | 91 | 991 GT3 R II | Allemann / Bohn / Renauer / Renauer | Herberth Motorsport | 1st |
| 24.4.2021 | 12 h Paul Ricard | 92 | 991 GT3 R II | Häring / "Gonzales" / Aust / Seefried | Herberth Motorsport | DNF |
| 24.4.2021 | 12 h Paul Ricard | 909 | 991 GT3 Cup II | Mukovoz / Sidoruk / Peregudov | DUWO Racing | 14th |
| 24.4.2021 | 12 h Paul Ricard | 911 | 991 GT3 Cup II | Polette / Lelievre / Amrouche / Ancel | Porsche Lorient Racing | 7th |
| 24.4.2021 | 12 h Paul Ricard | 978 | 991 GT3 Cup II | Dons / Bastien / Mouez | Speed Lover | 17th |
| 24.4.2021 | 12 h Paul Ricard | 979 | 992 GT3 Cup | Verhoeven / Verhoeven / Smits | Speed Lover | 8th |
| 27.4.2021 | WEC Spa Test | 46 | 991 RSR II 19 | Burchardt / Olsen / Jefferies | Team Project 1 | 35th |
| 27.4.2021 | WEC Spa Test | 56 | 991 RSR II 19 | Cairoli / Perfetti / Pera | Team Project 1 | 24th |
| 27.4.2021 | WEC Spa Test | 77 | 991 RSR II 19 | Evans / Ried / Campbell | Dempsey - Proton Racing | 25th |
| 27.4.2021 | WEC Spa Test | 86 | 991 RSR II 19 | Barker / Gamble / Wainwright | GR Racing | 27th |
| 27.4.2021 | WEC Spa Test | 88 | 991 RSR II 19 | Picariello / Seefried / Haryanto | Dempsey - Proton Racing | 31st |
| 27.4.2021 | WEC Spa Test | 91 | 991 RSR II 19 | Bruni / Lietz | Porsche GT Team | 19th |
| 27.4.2021 | WEC Spa Test | 92 | 991 RSR II 19 | Estre / Jani | Porsche GT Team | 18th |
| 1.5.2021 | 6 h Spa | 46 | 991 RSR II 19 | Olsen / Burchardt | Team Project 1 | DNA |
| 1.5.2021 | 6 h Spa | 56 | 991 RSR II 19 | Perfetti / Cairoli / Pera | Team Project 1 | DNS |
| 1.5.2021 | 6 h Spa | 77 | 991 RSR II 19 | Ried / Evans / Campbell | Dempsey-Proton Racing | DNF |
| 1.5.2021 | 6 h Spa | 86 | 991 RSR II 19 | Wainwright / Barker / Gamble | GR Racing | DNF |
| 1.5.2021 | 6 h Spa | 88 | 991 RSR II 19 | Haryanto / Seefried / Picariello | Dempsey-Proton Racing | 24th |
| 1.5.2021 | 6 h Spa | 91 | 991 RSR II 19 | Bruni / Lietz | Porsche GT Team | 19th |
| 1.5.2021 | 6 h Spa | 92 | 991 RSR II 19 | Estre / Jani | Porsche GT Team | 15th |
| 2.5.2021 | GT4 America Austin | 7 | 718 Cayman GT4 Clubsport MR | Owen / Gibbons | Nolasport with OGH | 26th/11th |
| 2.5.2021 | GT4 America Austin | 17 | 718 Cayman GT4 Clubsport MR | Rappaport / Hetherington | TRG - The Racers Group | 33rd/DNF |
| 2.5.2021 | SRO GT America Austin | 20 | 991 GT3 R II | Poordad / Heylen | Wright Motorsports | 5th/6th |
| 2.5.2021 | GT4 America Austin | 43 | 718 Cayman GT4 Clubsport MR | Straus / Mosing | Murillo Racing | 31st/24th |
| 2.5.2021 | GT4 America Austin | 46 | 718 Cayman GT4 Clubsport MR | Walker / Walker | Nolasport | 27th/23rd |
| 2.5.2021 | GT4 America Austin | 47 | 718 Cayman GT4 Clubsport MR | Travis / Hart | Nolasport | 1st/1st |
| 2.5.2021 | GT4 America Austin | 54 | 718 Cayman GT4 Clubsport MR | Pappas / Bleekemolen | Black Swan Racing | 2nd/21st |
| 2.5.2021 | GT4 America Austin | 66 | 718 Cayman GT4 Clubsport MR | DeBoer / Pumpelly | TRG - The Racers Group | 10th/14th |