Billy McConnell ended day one at Silverstone at the top of the combined timesheets after clocking 54.109sec lap to beat Dan Linfoot by 0.132s.
Alex Olsen, who’d been fastest in the opening session, ended the day third and just 0.151s behind McConnell, as Franco Bourne finished fourth ahead of David Allingham.
Pirelli National Superstock with Santander Consumer Finance: Combined practice:
1. Billy McConnell (C&L Fairburn Properties Jackson Racing) 54.109s
2. Dan Linfoot (Optimum Bikes Racing Ltd) +0.132s
3. Alex Olsen (Cumins by Team IWR Honda) +0.172s
4. Franco Bourne (Marvel HCL Motorsport) +0.198s
5. David Allingham (Milenco by Padgetts Motorcycles) +0.340s