The calendar for the 2023 British GT Championship is out:-
April 8 & 10 – Oulton Park (2x 1-hour)
May 6/7 – Silverstone 500 (1x 3-hour)
May 27/28 – Donington Park (1x 2-hour)
June 24/25 – Snetterton (2x 1-hour)
July 15/16 – Algarve (1x 3-hour)
September 9/10 – Brands Hatch (1x 2-hour)
October 14/15 – Donington Park (1x 2-hour)
Spa has been dropped instead they will head to Portimão which is an interesting change.
More at
https://www.britishgt.com/news/859