| 21.1.2023 | 6 h Abu Dhabi | 44 | | Konôpka / Lewandowski | ARC Bratislava | 10th |
| 22.1.2023 | Daytona Test | 19 | | Giammaria / Perera / Schiavoni / Ineichen | Iron Lynx | 51st |
| 22.1.2023 | Daytona Test | 42 | | Yount / Conwright / Li / Deledda | NTE Sport | 42nd |
| 22.1.2023 | Daytona Test | 63 | | Caldarelli / Bortolotti / Pepper / Grosjean | Iron Lynx | 44th |
| 22.1.2023 | Daytona Test | 78 | | Goikhberg / Spinelli / Hites / Mapelli | US RaceTronics | 50th |
| 22.1.2023 | Daytona Test | 83 | | Frey / Bovy / Pin / Gatting | Iron Dames | 47th |
| 29.1.2023 | 24 h Daytona | 19 | | Schiavoni / Perera / Giammaria / Ineichen | Iron Lynx | 38th |
| 29.1.2023 | 24 h Daytona | 42 | | Deledda / Conwright / Megennis / Li | NTE Sport | 55th |
| 29.1.2023 | 24 h Daytona | 63 | | Pepper / Bortolotti / Caldarelli / Grosjean | Iron Lynx | 24th |
| 29.1.2023 | 24 h Daytona | 78 | | Goikhberg / Spinelli / Mapelli / Hites | US RaceTronics | 27th |
| 29.1.2023 | 24 h Daytona | 83 | | Frey / Pin / Gatting / Bovy | Iron Dames | 46th |
| 5.2.2023 | 12 h Bathurst | 6 | | D'Alberto / Wall / Deitz / Denyer | Wall Racing | DNF |
| 11.2.2023 | 4 h Dubai I | 19 | | Rindone / Leitch / Mapelli | Leipert Motorsport | 28th |
| 12.2.2023 | 4 h Dubai II | 19 | | Rindone / Leitch / Mapelli | Leipert Motorsport | 32nd |
| 16.2.2023 | Sebring February Test | 63 | | Grosjean / Perera / Pepper / Kvyat | Iron Lynx | 17th |
| 16.2.2023 | Sebring February Test | 78 | | Spinelli / Hites / Goikhberg | Forte Racing Powered by USRT | 16th |
| 16.2.2023 | Sebring February Test | 83 | | Frey / Pin / Gatting / Bovy | Iron Dames | 18th |
| 18.2.2023 | 4 h Yas Marina I | 19 | | Rindone / Leitch / Mapelli | Leipert Motorsport | 23rd |
| 19.2.2023 | 4 h Yas Marina II | 19 | | Rindone / Leitch / Mapelli | Leipert Motorsport | 19th |
| 8.3.2023 | SRO Test Paul Ricard | 6 | | Mapelli / Mitchell / Perera | K-Pax Racing | 37th |
| 8.3.2023 | SRO Test Paul Ricard | 8 | | Jamin / Gomar / Gorini | AGS Events | 45th |
| 8.3.2023 | SRO Test Paul Ricard | 18 | | Nicholas Risitano | GSM AB1 GT3 Team | 51st |
| 8.3.2023 | SRO Test Paul Ricard | 19 | | Ineichen / Beretta / Pulcini | Iron Lynx | 48th |
| 8.3.2023 | SRO Test Paul Ricard | 58 | | Capo / Neary / Tweraser | GRT Grasser Racing Team | 43rd |
| 8.3.2023 | SRO Test Paul Ricard | 63 | | Pepper / Caldarelli / Bortolotti | Iron Lynx | 40th |
| 8.3.2023 | SRO Test Paul Ricard | 78 | | Lind / Collard | Barwell Motorsport | 44th |
| 8.3.2023 | SRO Test Paul Ricard | 78T | | Lind / Collard | Barwell Motorsport | 49th |
| 8.3.2023 | SRO Test Paul Ricard | 83 | | Bovy / Frey / Gatting | Iron Dames | 46th |
| 8.3.2023 | SRO Test Paul Ricard | 85 | | Schmid / van Berlo / Hites | GRT Grasser Racing Team | 39th |
| 8.3.2023 | SRO Test Paul Ricard | 119 | | Moulin / Paverud | VSR | 42nd |
| 18.3.2023 | 12 h Sebring | 63 | | Perera / Pepper / Grosjean | Iron Lynx | 20th |
| 18.3.2023 | 12 h Sebring | 78 | | Spinelli / Goikhberg / Hites | Forte Racing Powered by USRT | 46th |
| 18.3.2023 | 12 h Sebring | 83 | | Frey / Bovy / Gatting | Iron Dames | 35th |
| 10.4.2023 | British GT Oulton Park | 72 | | Sansom / Tregurtha | Barwell Motorsport | 14th/16th |
| 10.4.2023 | British GT Oulton Park | 78 | | Balfe / Mitchell | Barwell Motorsport | 12th/7th |
| 15.4.2023 | 100 min Long Beach | 78 | | Goikhberg / Spinelli | Forte Racing Powered by USRT | 18th |
| 16.4.2023 | 300 km Okayama | 87 | | Matsuura / Sakaguchi | JLOC | 21st |
| 16.4.2023 | 300 km Okayama | 88 | | Kogure / Motojima | JLOC | 39th |
| 18.4.2023 | LM Cup Barcelona Test | 19 | | Rindone / Kujala | Leipert Motorsport | 39th |
| 18.4.2023 | LM Cup Barcelona Test | 63 | | Hamaguchi / Abril | Iron Lynx | 40th |
| 18.4.2023 | LM Cup Barcelona Test | 70 | | Watzinger / Leitch | Leipert Motorsport | 32nd |
| 22.4.2023 | LM Cup Barcelona | 19 | | Rindone / Kujala | Leipert Motorsport | DNF |
| 22.4.2023 | LM Cup Barcelona | 63 | | Hamaguchi / Abril | Iron Lynx | 26th |
| 22.4.2023 | LM Cup Barcelona | 70 | | Watzinger / Leitch | Leipert Motorsport | DNF |
| 23.4.2023 | 3 h Monza | 6 | | Mitchell / Mapelli / Perera | K-Pax Racing | DNF |
| 23.4.2023 | GT2 Euro Monza | 8 | | Privitelio / Privitelio | Iron Lynx | DNF/10th |
| 23.4.2023 | 3 h Monza | 8 | | Gorini / Borga / Jamin | AGS Events | 35th |
| 23.4.2023 | 3 h Monza | 19 | | Pulcini / Beretta / Ineichen | Iron Lynx | DNF |
| 23.4.2023 | 3 h Monza | 58 | | Neary / Capo / Crestani | GRT Grasser Racing Team | 27th |
| 23.4.2023 | 3 h Monza | 63 | | Bortolotti / Caldarelli / Pepper | Iron Lynx | 3rd |
| 23.4.2023 | 3 h Monza | 78 | | Balon / Collard / Lind | Barwell Motorsport | 30th |
| 23.4.2023 | 3 h Monza | 83 | | Frey / Bovy / Gatting | Iron Dames | 28th |
| 23.4.2023 | 3 h Monza | 85 | | van Berlo / Hites / Schmid | GRT Grasser Racing Team | DNF |
| 30.4.2023 | GT Open Portimão | 8 | | Giuseppe Cipriani | Il Barone Rampante | 15th/20th |
| 30.4.2023 | GT Open Portimão | 19 | | Perolini / "Arrow" | Oregon Team | 14th/18th |
| 30.4.2023 | GT Open Portimão | 32 | | Kodric / Mur | Bonaldi Motorsport | 26th/26th |
| 30.4.2023 | GT Open Portimão | 33 | | Pavlovic / Jao-Javanil | Bonaldi Motorsport | 28th/24th |
| 30.4.2023 | GT Open Portimão | 63 | | Chovet / Paul | Oregon Team | 10th/10th |
| 4.5.2023 | 450 km Fuji | 87 | | Matsuura / Sakaguchi | JLOC | DNF |
| 4.5.2023 | 450 km Fuji | 88 | | Motojima / Kogure | JLOC | 21st |
| 7.5.2023 | 12 h Spa | 10 | | Li / Brunot / Leitch | Leipert Motorsport | 17th |
| 7.5.2023 | Italian GT Misano [GT3] | 16 | | Fascicolo / Ciglia | Imperiale Sport Car | 13th/13th |
| 7.5.2023 | Italian GT Misano [GT3] | 19 | | Moulin / Llarena | VSR | 12th/6th |
| 7.5.2023 | Italian GT Misano [GT3] | 54 | | Gvazava / Denes | Imperiale Sport Car | 9th/8th |
| 7.5.2023 | Italian GT Misano [GT3] | 60 | | Petrov / Cazzaniga | VSR | 5th/2nd |
| 7.5.2023 | Italian GT Misano [GT3] | 63 | | Liberati / Michelotto | VSR | 2nd/5th |
| 7.5.2023 | British GT Silverstone | 72 | | Sansom / Tregurtha | Barwell Motorsport | 6th |
| 7.5.2023 | British GT Silverstone | 78 | | Balfe / Mitchell | Barwell Motorsport | 2nd |
| 7.5.2023 | Italian GT Misano [GTC] | 106 | | Pollini / Pollini | Giacomo Race | 4th/3rd |
| 7.5.2023 | Italian GT Misano [GTC] | 163 | | Gilles Stadsbader | VSR | 1st/1st |
| 7.5.2023 | Italian GT Misano [GTC] | 172 | | Vebster / Segù | DL Racing | 3rd/DNF |
| 7.5.2023 | Italian GT Misano [GTC] | 202 | | Oliva / D'Auria | HC Racing | 24th/14th |
| 7.5.2023 | Italian GT Misano [GTC] | 206 | | Ignazio Zanon | VSR | 8th/5th |
| 7.5.2023 | Italian GT Misano [GTC] | 208 | | Privitelio / Privitelio | Iron Lynx | 21st/21st |
| 7.5.2023 | Italian GT Misano [GTC] | 230 | | Pezzuto / Pezzuto | HC Racing | DNF/12th |
| 7.5.2023 | Italian GT Misano [GTC] | 247 | | Ettore Carminati | Ettore Carminati | 23rd/9th |
| 7.5.2023 | Italian GT Misano [GTC] | 248 | | Pierluigi Alessandri | DL Racing | 13th/DNF |
| 7.5.2023 | Italian GT Misano [GTC] | 272 | | Riva / Fabi | DL Racing | 7th/DNF |
| 14.5.2023 | Australian GT Phillip Island | 6 | | Deitz / Wall | Wall Racing | DNF/DNS |
| 14.5.2023 | SRO GT Sprint Brands Hatch | 18 | | Risitano / Croce | GSM AB1 GT3 Team | 27th/27th |
| 14.5.2023 | SRO GT Sprint Brands Hatch | 60 | | Pepper / Perera | VSR | 6th/25th |
| 14.5.2023 | 2 h 40 min Laguna Seca | 78 | | Goikhberg / Spinelli | Forte Racing Powered by USRT | 25th |
| 14.5.2023 | SRO GT Sprint Brands Hatch | 119 | | Moulin / Paverud | VSR | 24th/16th |
| 14.5.2023 | SRO GT Sprint Brands Hatch | 163 | | Nemoto / Ineichen | VSR | 22nd/23rd |
| 21.5.2023 | 24 h Nürburgring | 7 | | Jefferies / Buurman / Soufi / Lefterov | Konrad Motorsport GmbH | DNF |