David Shoubridge powered to the top of the timesheets to steal pole from former champion Phil Atkinson by 0.095sec with a best lap of 2min 17.230sec in a session cut short by a red flag.
Lee Devonport will line up third on the grid after ending the session more than a second and a half back, as Adon Davie heads the second row, just ahead of fifth-placed Olly Savage.
Ducati Performance TriOptions Cup, Snetterton, Qualifying:
1. David Shoubridge (Rich Energy Ducati) 2m 17.290sec
2. Phil Atkinson (Q-Oil Treatments/Unique Motorsport +0.095s
3. Lee Devonport (Team Aramex/ULS) +1.984s
4. Adon Davie (JDF Racing) +3.604s
5. Olly Savage (R Racing) +4.046s