Points leader Alfie Davidson took early charge of proceedings at Donington Park as he led the way in first practice.
Davidson’s best lap of 1min 35.641s kept him 0.501secs clear of Rossi Banham, with Cameron Dawson clocking the third best time.
Daniel Goodman was the fourth quickest in the opening session, with Harley McCabe fifth.
Pirelli British Sportbike Championship, FP1:
1. Alfie Davidson (Aprilia IN Competition Racing) 1min 36.641s
2. Rossi Banham (JPR Performance) +0.501s
3. Cameron Dawson (Powerslide Racing) +0.925s
4. Daniel Goodman (Fibre Tec Aprilia by MLav Racing) +0.930s
5. Harley McCabe (Fibre Tec Aprilia by MLav Racing) +0.978s