2015 British GT Championship
The 2015 Avon Tyres British GT season was the 23rd season of the British GT Championship. The season began on 6 April at Oulton Park and finished on 13 September at Donington Park, after nine rounds held over seven meetings. Beechdean Motorsport won both the GT3 and GT4 drivers championships. Team owner Andrew Howard won his second title with Jonathan Adam in GT3 while Jamie Chadwick and Ross Gunn claimed honours in GT4.
Entry list
Race calendar
The provisional 2015 calendar was announced on 5 November 2014. Spa-Francorchamps will host a two-hour endurance race as opposed to two hour-long races in 2014. All races except Belgian round at Spa, were held in the United Kingdom.| Round | Circuit | Date | Length | Pole Position | GT3 Winner | GT4 Winner |
| 1 | Oulton Park | 6 April | 60 mins | No. 6 Oman Racing Team | No. 6 Oman Racing Team | No. 50 Optimum Motorsport |
| 1 | Oulton Park | 6 April | 60 mins |  Rory Butcher Liam Griffin | Rory Butcher Liam Griffin | Graham Johnson Mike Robinson |
| 2 | Oulton Park | 6 April | 60 mins | No. 007 Beechdean-AMR | No. 007 Beechdean-AMR | No. 77 ISSY Racing |
| 2 | Oulton Park | 6 April | 60 mins | Jonathan Adam Andrew Howard | Jonathan Adam Andrew Howard | Gavan Kershaw Oz Yusuf |
| 3 | Rockingham | 3 May | 120 mins | No. 1 Ecurie Ecosse | No. 1 Ecurie Ecosse | No. 407 Beechdean-AMR |
| 3 | Rockingham | 3 May | 120 mins | Marco Attard Alexander Sims | Marco Attard Alexander Sims | Jamie Chadwick Ross Gunn |
| 4 | Silverstone Arena | 31 May | 180 mins | No. 007 Beechdean-AMR | No. 12 Von Ryan Racing | No. 407 Beechdean-AMR |
| 4 | Silverstone Arena | 31 May | 180 mins | Jonathan Adam Andrew Howard | Adrian Quaife-Hobbs Gilles Vannelet | Jamie Chadwick Ross Gunn |
| 5 | Spa-Francorchamps | 11 July | 120 mins | No. 007 Beechdean-AMR | No. 007 Beechdean-AMR | No. 77 ISSY Racing |
| 5 | Spa-Francorchamps | 11 July | 120 mins | Jonathan Adam Andrew Howard | Jonathan Adam Andrew Howard | Gavan Kershaw Oz Yusuf |
| 6 | Brands Hatch GP | 2 August | 120 mins | No. 007 Beechdean-AMR | No. 1 Ecurie Ecosse | No. 56 Tolman Motorsport |
| 6 | Brands Hatch GP | 2 August | 120 mins | Jonathan Adam Andrew Howard | Marco Attard Alexander Sims | David Pattison Luke Davenport |
| 7 | Snetterton | 23 August | 60 mins | No. 27 TF Sport | No. 6 Oman Racing Team | No. 77 ISSY Racing |
| 7 | Snetterton | 23 August | 60 mins | Jody Fannin Andrew Jarman | Rory Butcher Liam Griffin | Gavan Kershaw Oz Yusuf |
| 8 | Snetterton | 23 August | 60 mins | No. 1 Ecurie Ecosse | No. 007 Beechdean-AMR | No. 48 Fox Motorsport |
| 8 | Snetterton | 23 August | 60 mins | Marco Attard Alexander Sims | Jonathan Adam Andrew Howard | Jamie Stanley Fulvio Mussi |
| 9 | Donington Park | 13 September | 120 mins | No. 27 TF Sport | No. 17 TF Sport | No. 62 Academy Motorsport |
| 9 | Donington Park | 13 September | 120 mins | Jody Fannin Andrew Jarman | Matt Bell Derek Johnston | Daniel Lloyd Chris Webster |
Championship standings
;Points systemPoints are awarded as follows:
| Length | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 60 mins | 25 | 18 | 15 | 12 | 10 | 8 | 6 | 4 | 2 | 1 |
| 60+ mins | 37.5 | 27 | 22.5 | 18 | 15 | 12 | 9 | 6 | 3 | 1.5 |