Finn Smart-Weeden held off Lewis Jones to take victory in the final race of the weekend, beating him by just 0.064secs.
Behind, Jack Kirsch brought his machine home a mere 0.019secs later to claim third as Lennon Docherty took fourth just ahead of Calum Beach.
HEL Performance British Junior Supersport Championship with Motocourse, Race Two result:
1. Finn Smart-Weeden (Wrapped Racing by Club 74)
2. Lewis Jones (Symcirrus Motorsport) +0.064s
3. Jack Kirsch (RD Racing) +0.083s
4. Lennon Docherty (Symcirrus Motorsport) +0.186s
5. Calum Beach (UPVC Outlet Racing) +0.616s
Championship points after Round 2:
1. Lewis Jones 44
2. Finn Smart-Weeden 43
3. Jacob Stephenson 37
4. Jack Kirsch 36
5. Kalvin Kelly 34