Tom Booth-Amos made it a double at Oulton Park as he beat points leader Ben Currie to the main race win – as Currie’s main points rival Rhys Irwin suffered more heartache.
As Booth-Amos stormed to his second win of the weekend, Currie extended his points lead over the unfortunate Irwin, who suffered his second DNF of the weekend.
Currie was fastest off the line and led for the opening laps as behind, Irwin stormed through from the third row and on lap five, passed Currie for the lead as Booth-Amos followed him through into second.
Irwin led the next five laps until he was hit by mechanical issues and forced to retire, handing the lead to Booth-Amos.
Behind, Richard Cooper was flying after overcoming a third row start and slotted in to second, eventually finishing 1.216secs behind Booth-Amos who had a clear run to the flag.
Currie was third to extend his championship lead as Eunan McGlinchey took fourth and Dean Harrison scored an impressive fifth on his debut weekend in the series with the BPE Yamaha squad.
In GP2, Cameron Fraser once again took the spoils with Harvey Claridge second and Harry Rowlings third.
Quattro Group British Supersport & GP2 Championship, Feature Race result:
1. Tom Booth-Amos (Gearlink Kawasaki)
2. Richard Cooper (BPE Yamaha) +1.216s
3. Ben Currie (Oxford Products Racing Ducati) +2.665s
4. Eunan McGlinchey (Eunan McGlinchey Racing) +4.828s
5. Dean Harrison (BPE Yamaha) +5.348s