2015 Season
| DATE | CIRCUIT |
| 4/5 April | Silverstone National |
| 16/17 May | Rockingham |
| 18/19 July | Castle Coombe |
| 22/23 August | Brands Hatch Indy |
| 26-Sep | Mallory Park |
| 17/18 October | Donington |
| 24-Oct | Birkett Relay Silverstone |
| DATE | CIRCUIT |
| 4/5 April | Silverstone National |
| 16/17 May | Rockingham |
| 18/19 July | Castle Coombe |
| 22/23 August | Brands Hatch Indy |
| 26-Sep | Mallory Park |
| 17/18 October | Donington |
| 24-Oct | Birkett Relay Silverstone |