Alex Olsen kept himself at the top of the timesheets as he powered to a 1min 26.840secs to beat Dan Linfoot by 0.426secs.
Third fastest was Tom Ward, just ahead of Richard Kerr as Olsen’s rival for runners-up spot in the championship, Billy McConnell, was fifth.
Pirelli National Superstock Championship with MotoNovo, Brands Hatch, combined practice:
1. Alex Olsen (FHO Racing by Kobelco) 1min 26.840s
2. Dan Linfoot (Optimum Bikes Racing) +0.426s
3. Tom Ward (IN Competition/Aprilia) +0.726s
4. Richard Kerr (AMD Motorsport) +0.749s
5. Billy McConnell (C&L Fairburn Properties/Jackson Racing) +0.798s