Henry Snell stole his ninth win of the season as he pipped James Cook by just 0.028secs after a race-long scrap.
Polesitter Cook and points leader Snell had battled the whole race, swapping places several times most laps and in the end it came down to a last second move.
Cook looked to be in control as they headed towards the end of the lap but he was powerless as Snell outdragged him to the line, just getting ahead to take the win.
Calum Beach was third with Freddy Oakley fourth and Marley Mackenzie fifth.
AJN Steelstock Kawasaki British Superteen Championship, Race One result:
1. Henry Snell (ROKiT Rookies Kawasaki)
2. James Cook (Josh Davies Motorsport by Uggly & Co) +0.028s
3. Calum Beach (UPVC Outlet Racing) +3.783s
4. Freddy Oakley (Oakley Racing) +13.072s
5. Marley Mackenzie (ELPM/Kirkcaldy Kawasaki) +13.161s