The final race of the weekend at Oulton Park is due to commence at 17.05, with Fortec Motorsport's Luca Magnussen on pole position.
Race three is the top-12 reverse grid contest, with the leading 12 drivers from qualifying inverted on the starting order. Having clocked the 12th quickest time in Saturday's session, the Dane will therefore lead the pack at the start of race three, with Douglas Motorsport's Luke Hilton starting alongside him on the front row.
Pace Performance's Stefan Bostandjiev and Graham Brunton Racing's Callum Baxter are next up ahead of Arden's Leon Wilson and KMR's race one winner Alex O'Grady.
Elite's Isaac Phelps and Hillspeed's Leandro Juncos are on row four ahead of Fortec's Jack Taylor and Elite's Ary Bansal.
The third Elite of Alex Kattoulas and Hillspeed's double pole-sitter Dan Guinchard complete the top dozen.
The full grid is shown below.
GB4 Championship, partnered by the BRDC, Oulton Park race three grid:
1. Luca Magnussen, Fortec Motorsports
2. Luke Hilton, Douglas Motorsport
3. Stefan Bostandjiev, Pace Performance
4. Callum Baxter, Graham Brunton Racing
5. Leon Wilson, Arden Motorsport
6. Alex O'Grady, KMR Sport
7. Isaac Phelps, Elite Motorsport
8. Leandro Juncos, Hillspeed
9. Jack Taylor, Fortec Motorsports
10. Ary Bansal, Elite Motorsport
11. Alex Kattoulas, Elite Motorsport
12. Dan Guinchard, Hillspeed
13. Alex Berg, Graham Brunton Racing
14. Jason Pribyl, ADM
15. Mayer Deonarine, Graham Brunton Racing
16. Ava Dobson, Arden Motorsport
17. Enzo Hallman, Douglas Motorsport
18. Thomas Ingram Hill, Fortec Motorsports
19. Dayton Coulthard, Douglas Motorsport
20. Megan Bruce, KMR Sport
21. Josh McLean, Pace Performance
22. Holly Miall, Fox Motorsport
23. Lily-May Watkins, KMR Sport
24. Caitlyn McDaniel, Fox Motorsport
