The 2025 British GT Championship is the 33rd British GT Championship, a sports car championship promoted by the SRO Motorsports Group. The season will begin on 6 April and end on 5 October at Donington Park.
The calendar was provisionally unveiled on 28 June 2024. In a change from the 2024 schedule, the season will start and end with a 2-hour round at Donington Park with Oulton Park moving to the third round, at the request of the teams because of weather issues, however, the race will stay on a Bank Holiday but moving from Easter Monday to the Spring bank holiday at the end of May, and Donington Park moving to the penultimate round. The international round will stay at Spa as part of the SRO's Speedweek.[1] Another change from prior seasons is the moving of the media day from Donington Park to Silverstone. [2]
| Round | Circuit | Length | Date | |
|---|---|---|---|---|
| 1 |  Donington Park, Leicestershire | 120 min | 5–6 April | |
| 2 | Silverstone Circuit, Northamptonshire | 180 min | 26–27 April | |
| 3 | Oulton Park, Cheshire | 60 min | 24–26 May | |
| 4 | 60 min | |||
| 5 |  Circuit de Spa-Francorchamps, Stavelot, Belgium | 180 min | 21–22 June | |
| 6 | Snetterton Circuit, Norfolk | 60 min | 12–13 July | |
| 7 | 60 min | |||
| 8 | Brands Hatch, Kent | 120 min | 23–24 August | |
| 9 | Donington Park, Leicestershire | 120 min | 4–5 October | |
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