Scott Swan took a lights-to-flag victory in the first race at Thruxton, holding off Luke Mossey to bank his third win of the year.
Although Mossey kept him honest throughout the full 14 lap race, Swann was able to just keep himself ahead on his Swann Racing Honda, eventually taking the win by 1.116secs, banking 25 points to move up to third in the title chase.
Tim Neave was third, ahead of David Allingham as points leader Davey Todd had to make do with fifth.
Pirelli National Superstock with Moneybarn Vehicle Finance, Race one result:
1. Scott Swan (Swann Racing)
2. Luke Mossey (Milenco by Padgetts Motorcycles) +1.116s
3. Tim Neave (MasterMac Honda) +2.553s
4. David Allingham (SMS/Nicholls Oil Racing) +3.400s
5. Davey Todd (Cheshire Mouldings BMW by TAS Racing) +3.581s