James McManus took the second race win of the weekend as he beat Completely Motorbikes/Affinity team-mate Mikey Hardie by 0.397secs.
Kieran Kent ended a close third and just 0.006secs behind Hardie, with Charlie Atkins just another 0.078secs behind in fourth and Joe Ellis a close fifth.
HEL Performance British Junior Supersport Championship with Motocourse, Oulton Park, Race Two:
1. James McManus (Completely Motorbikes/Affinity)
2. Mikey Hardie (Completely Motorbikes/Affinity) +0.397s
3. Kieran Kent (D&P Lovell Kent Racing) +0.403s
4. Charlie Atkins (Symcirrus Motorsport) +0.481s
5. Joe Ellis (JPR) +0.607s
Championship positions after Round 12:
1. Charlie Atkins 200
2. James McManus 195
3. Kieran Kent 191
4. Mikey Hardie 164
5. Jack Roach 99