Lee Jackson claimed his third victory of the season to enhance his National Superstock 600 title chances at Donington Park.
The Skellingthorpe teenager was the class of the field all weekend on his Chris Walker Race School Kawasaki, and he carried that dominance into the race.
After dropping to third at the start, Jackson worked his way back to the front and was pulling away from the pack when an accident involving another rider curtailed the race five laps early.
The result left the 16-year-old third in the standings, just 20 points behind leader Ben Burke, who finished second. James Rose is second, four points clear of Jackson.
Meanwhile, Alex Lowes breezed into the British Superbike Showdown after finishing sixth and fifth at Donington.
The Lincoln rider will now fight for the title over the remaining three rounds at Assen, Silverstone and Brands Hatch.