Aaron Silvester converted pole to a win as he held off a charging Owen Jenner to take victory by 0.286secs.
Jenner fought his way back from 16th on the grid to pass Jacob Hatch to take second place two laps from the flag. Cameron Dawson took fourth and Asher Durham fifth.
Pirelli National Junior Superstock with Santander Consumer Finance, Oulton Park race one result:
1. Aaron Silvester (A&J Racing)
2. Owen Jenner (Jenner Racing) +0.286s
3. Jacob Hatch (Completely Motorbikes Kawasaki) +0.534s
4. Cameron Dawson (MSS Performance) +2.748s
5. Asher Durham (G&S Racing) +5.258s