Sullivan Mounsey pipped Evan Belford to the first British Talent Cup win of the weekend by just 0.148s after a last lap scrap.
Mounsey made the move past Belford at the loop on the final lap and managed to hold it to the line, the pair closely followed by Lucas Brown.
Harley McCabe was denied fourth as he crashed just metres from the finish line, handing the place to Ryan Frost as Alexander Rowan crossed the line fifth.
R&G British Talent Cup, Race One result:
1. Sullivan Mounsey (Wilson Racing/Maddison Media)
2. Evan Belford (City Lifting/RS Racing) +0.148s
3. Lucas Brown (Amphibian Scaffolding/SP125 Racing) +0.319s
4. Ryan Frost (Talentum Motorsport by Azure Notions) +2.160s
5. Alexander Rowan (Mortimer Racing Victoria House Academy) +2.928s