David Shoubridge shot to the top of the FP1 timesheets with a hot lap of 1min 31.396secs to lead Tom Tunstall.
As the two title favourites locked out the top, Blaze Baker was just over a second behind in third, ahead of Adon Davie and Bob Collins.
Ducati Performance TriOptions Cup, Brands Hatch, FP1:
1. David Shoubridge (Rich Energy Ducati)
2. Tom Tunstall (Motorcycle Race Parts) +0.470s
3. Blaze Baker (Trackdemons Racing Powered by HMY +1.147s
4. Adon Davie (JDF Racing) 1.453s
5. Bob Collins (Team Aramex/ULS) +1.526s