David Shoubridge moved a step closer to the championship as he beat Blaze Baker to his second win of the weekend by 0.151secs.
Baker, meanwhile, managed to beat Tom Tunstall by more than half a second as the title challenger had to settle for third.
In an almost identical result to Saturday’s race Max Lofthouse finished fourth, just ahead of Michael Tustin in fifth.
Ducati Performance TriOptions Cup, Oulton Park, Race Two:
1. David Shoubridge (Rich Energy Ducati)
2. Blaze Baker (Trackdemons Racing powered by HMY) +0.151s
3. Tom Tunstall (Motorcycle Race Parts) +0.795s
4. Max Lofthouse (JDF Racing) +12.945s
5. Michael Tustin (AH Performance/Breckland Utility Solutions) +13.415s
Championship positions after Round 14:
1 David Shoubridge 295
2. Tom Tunstall 258
3 Blaze Baker 167
4. Max Lofthouse 150
5. Michael Tustin 131