Ilya Mykhalchyk stormed to the top of the FP1 timesheets as he beat Luke Mossey by 0.306secs with a hot lap of 1min 28.951s.
Mossey was second, ahead of David Allingham, with Tom Ward fourth and Jack Bednarek fifth.
Pirelli National Superstock Championship, FP1:
1. Ilya Mykhalchyk (ROKiT BMW Motorrad) 1min 28.951s
2. Luke Mossey (Milenco by Padgetts Motorcycles) +0.306s
3. David Allingham (SMS/Nicholl Oil BMW) +0.412s
4. Tom Ward (Armada Racing Honda) +0.515s
5. Jack Bednarek (HEC Racing powered by GT Couriers Honda) +1.102s