Amanuel Brinton stole the first win of the day from Evan Belford in a drag race over the line.
Belford, who had dominated most of the weekend so far, missed out on the win by just 0.029secs as Sullivan Mounsey took third.
Fourth place went to Ryan Frost with Julian Correa fifth.
R&G British Talent Cup, race one:
1. Amanuel Brinton (Kovara Projects/RS Racing)
2. Evan Belford (City Lifting/RS Racing) +0.029s
3. Sullivan Mounsey (Wilson Racing/Maddison Media) +1.784s
4. Ryan Frost (Talentum Motorsport by Azure Notions) +6.861s
5. Julian Correa (Microlise Cresswell Racing) +6.983s