Davey Todd took control in the second Superstock free practice session to beat Tim Neave to the fastest time of the day, clocking a 1m:07.252s.
Billy McConnell was third quickest, 0.036s behind Neave while Lewis Rollo made his way up to fourth place, just ahead of Alex Olsen.
Pirelli National Superstock Championship with MotoNovo Finance, Donington Park, Combined Practice:
1. Davey Todd, Milenco by Padgetts Motorcycles
2. Tim Neave, Edwards Yamaha +0.137s
3. Billy McConnell, C&L Fairburn Properties/Jackson Racing +0.173s
4. Lewis Rollo, Milenco by Padgetts Motorcycles +0.398s
5. Alex Olsen, FHO Racing with Kobelco +0.007