Ryan Frost took victory as early challengers Julian Correa and Filip Surowiak crashed out in the second race of the weekend at Donington Park.
The Fibre Tec Honda rider beat Lucas Brown by 0.206secs in a slightly shortened race which came with plenty of drama.
Early leader Surowiak crashed out on lap six after he tangled with Julian Correa at the final corner - but while Correa was able to continue, his hopes of a win were dashed two laps later when he too crashed out.
Amanuel Brinton crossed the line third, with Ollie Walker fourth and Ronnie Harris fifth.
R&G British Talent Cup, Race Two result:
1. Ryan Frost (Fibre Tec Honda)
2. Lucas Brown (SENCAT Talent Team/Mortimer Racing) +0.206s
3. Amanuel Brinton (Kovara Projects/RS Racing) +0.556s
4. Ollie Walker (Fibre Tec Honda) +0.668s
5. Ronnie Harris (Kovara Projects/RS Racing)
Championship points:
1. Lucas Brown 94
2. Amanuel Brinton 77
3. Ryan Frost 75
4.Julian Correa 65
5. Ronnie Harris 50