2021 GT & Prototype Challenge
The 2021 GT & Prototype Challenge powered by Hankook was the fifth season of the GT & Prototype Challenge. It began at the Hockenheimring on 21 May and ended at TT Circuit Assen on 31 October.
Race results
Bold indicates overall winner.Championships standings
| Position | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | 10th | 11th | Pole |
| Points | 23 | 20 | 17 | 15 | 13 | 11 | 9 | 7 | 5 | 3 | 1 | 1 |