Max Cook dominated the weekend to add another race win and fastest lap to his earlier victory and two pole positions.
Cook beat Louis Valleley by almost five seconds after an unfortunate Sam Laffins crashed out from second position on the final lap.
Behind, a three-bike battle for third went all the way to the chequered flag, with Dan Brooks getting the better of Seth Crump, as Aaron Silvester crossed the line fifth.
Pirelli National Junior Superstock Championship with MotoNovo Finance, Oulton Park, Race Two result:
1. Max Cook (Uggly & Co by Binch Pro)
2. Louis Valleley (Team Val-Tech Racing/Mortimer Racing +4.818s
3. Dan Brooks (R4R Vision Team) +9.377s
4. Seth Crump (Seeeeeth +9.502s
5. Aaron Silvester (A&J Racing) +9.693s