Lennon Docherty doubled up in style as he took the second win of the weekend by 0.137secs over Finn Smart-Weeden.
Jack Kirsch crossed the line in third place, with Kalvin Kelly fourth and Lewis Smart rounding out the top five.
HEL Performance British Junior Supersport Championship with Motocourse, race two result:
1. Lennon Docherty (Symcirrus Motorsport)
2. Finn Smart-Weeden (Wrapped Racing by Club 74) +0.137s
3. Jack Kirsch (RD Racing) +0.205s
4. Kalvin Kelly (Completely Motorbikes Kawasaki +0.475s
5. Lewis Smart (Smart Racing) +1.165s