| 01/2026 - 12/2026 | GT Masters |  | Haupt Racing Team - Reis/Gjerdrum | Reis/Gjerdrum |
| 09/2026 - 12/2026 | GT Masters |  | Haupt Racing Team - Gjerdrum/Dybionka | Gjerdrum/Dybio. |
| 01/2025 - 12/2025 | GT Masters |  | LIQUI MOLY Team Engstler NordVPN by GRT - Karklys/Gjerdrum | Kar./Gje. |
| 01/2025 - 12/2025 | GT Masters |  | LIQUI MOLY Team Engstler Motorsport | Team Engstler |
| 08/2025 - 12/2025 | GT4 Germany |  | COSY Racing by ESM - Springob/E.Gjerdrum | Springob/Gjerd. |
| 01/2024 - 12/2024 | GT4 Germany |  | CV Performance X JP Motorsport | CV Performance |
| 01/2024 - 12/2024 | GT4 Germany |  | CV Performance Group - Tregurtha/Gjerdrum | Tregur./Gjerdr. |
| 01/2023 - 12/2023 | GT4 Germany |  | BWT Mücke Motorsport - Connor/Gjerdrum | Connor/Gjerdrum |
| 01/2023 - 12/2023 | GT4 Germany |  | BWT Mücke Motorsport - Gjerdrum/Robinson | Gjerdrum/Robin. |