| 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 |
| 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 |
| 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 | 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 |
| 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 | 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 | 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 |
| 7.5.2023 | Italian GT Misano [GT3] | 19 | | Moulin / Llarena | VSR | 12th/6th |
| 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 |
| 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 | 27 | | van der Linde / Mapelli / Pepper / Thiim | ABT Sportsline | 9th |
| 24.5.2023 | Spa Test | 6 | | Mapelli / Mitchell / Perera | K-Pax Racing | 30th |
| 24.5.2023 | Spa Test | 8 | | | AGS Events | 57th |
| 24.5.2023 | Spa Test | 19 | | Beretta / Ineichen / Pulcini | Iron Lynx | 53rd |
| 24.5.2023 | Spa Test | 58 | | Capo / Crestani / Neary | GRT - Grasser Racing Team | 56th |
| 24.5.2023 | Spa Test | 60 | | Moulin / Paverud | VSR | 64th |
| 24.5.2023 | Spa Test | 63 | | | Iron Lynx | 34th |
| 24.5.2023 | Spa Test | 70 | | Brunot / Leitch / Li / Watzinger | Leipert Motorsport | 31st |
| 24.5.2023 | Spa Test | 78 | | | Barwell Motorsport | 63rd |
| 24.5.2023 | Spa Test | 83 | | | Iron Dames | 65th |
| 24.5.2023 | Spa Test | 85 | | | GRT - Grasser Racing Team | 32nd |
| 28.5.2023 | DTM Oschersleben | 6 | | Alessio Deledda | SSR Performance | 19th/20th |
| 28.5.2023 | GT Open Spa | 19 | | Perolini / "Arrow" | Oregon Team | 24th |
| 28.5.2023 | DTM Oschersleben | 19 | | Mick Wishofer | GRT Grasser-Racing-Team | DNF/DNF |
| 28.5.2023 | GT Open Spa | 32 | | Kodric / Mur | Bonaldi Motorsport | 6th |
| 28.5.2023 | GT Open Spa | 33 | | Pavlovic / Jao-Javanil | Bonaldi Motorsport | 11th |
| 28.5.2023 | DTM Oschersleben | 63 | | Clemens Schmid | GRT Grasser-Racing-Team | 12th/5th |
| 28.5.2023 | GT Open Spa | 63 | | Chovet / Paul | Oregon Team | 8th |
| 28.5.2023 | British GT Donington | 72 | | Sansom / Tregurtha | Barwell Motorsport | 9th |
| 28.5.2023 | British GT Donington | 78 | | Balfe / Mitchell | Barwell Motorsport | 7th |
| 28.5.2023 | DTM Oschersleben | 92 | | Mirko Bortolotti | SSR Performance | 8th/6th |
| 28.5.2023 | DTM Oschersleben | 94 | | Franck Perera | SSR Performance | 1st/12th |
| 3.6.2023 | 6 h Paul Ricard | 6 | | Mitchell / Mapelli / Perera | K-Pax Racing | 23rd |
| 3.6.2023 | 6 h Paul Ricard | 8 | | Gorini / Borga / Jamin | AGS Events | 26th |
| 3.6.2023 | 6 h Paul Ricard | 19 | | Pulcini / Beretta / Ineichen | Iron Lynx | 34th |
| 3.6.2023 | 6 h Paul Ricard | 58 | | Crestani / Neary / Capo | GRT Grasser Racing Team | DNF |
| 3.6.2023 | 6 h Paul Ricard | 63 | | Bortolotti / Caldarelli / Pepper | Iron Lynx | 39th |
| 3.6.2023 | 6 h Paul Ricard | 78 | | Balon / Collard / Lind | Barwell Motorsport | DNF |
| 3.6.2023 | 6 h Paul Ricard | 83 | | Frey / Bovy / Gatting | Iron Dames | 29th |
| 3.6.2023 | 6 h Paul Ricard | 85 | | Schmid / van Berlo / Hites | GRT Grasser Racing Team | 17th |
| 9.6.2023 | Road to Le Mans | 19 | | Rindone / Kujala | Leipert Motorsport | 37th/29th |
| 9.6.2023 | Road to Le Mans | 63 | | Hamaguchi / Abril | Iron Lynx | DNF/DNF |
| 9.6.2023 | Road to Le Mans | 70 | | Watzinger / Leitch | Leipert Motorsport | 40th/27th |
| 11.6.2023 | ADAC GT Hockenheim I | 63 | | Hites / Mapelli | GRT Grasser-Racing-Team | 8th/7th |
| 18.6.2023 | GT Open Hungaroring | 19 | | Perolini / "Arrow" | Oregon Team | 12th/13th |
| 18.6.2023 | GT Open Hungaroring | 32 | | Kodric / Lewandowski | Bonaldi Motorsport | 9th/14th |
| 18.6.2023 | GT Open Hungaroring | 33 | | Pavlovic / Jao-Javanil | Bonaldi Motorsport | 18th/23rd |
| 18.6.2023 | GT Open Hungaroring | 63 | | Chovet / Paul | Oregon Team | 3rd/1st |
| 18.6.2023 | British GT Snetterton | 72 | | Sansom / Tregurtha | Barwell Motorsport | 9th/16th |
| 18.6.2023 | British GT Snetterton | 78 | | Balfe / Mitchell | Barwell Motorsport | 1st/9th |
| 25.6.2023 | 6 h Watkins Glen | 63 | | Caldarelli / Pepper | Iron Lynx | 50th |
| 25.6.2023 | 6 h Watkins Glen | 78 | | Goikhberg / Spinelli / Liddy | Forte Racing Powered by USRT | 32nd |
| 25.6.2023 | 6 h Watkins Glen | 83 | | Frey / Pin / Gatting | Iron Dames | 43rd |