Luke Stapleford held off former champs Ben Currie and Jack Kennedy to take victory in the Sprint Race at Oulton Park.
The Macadam Triumph Racing rider – who has so far led most of this weekend’s sessions – converted pole into the win at the end of the 12-lap dash, beating Currie by 0.437secs.
After a race long battle, the top three were visibly close on the final lap, but it was soon clear neither would be able to sneak a pass for the lead, as Stapleford led the trio across the line, Kennedy finishing just 0.252secs adrift of Currie in third.
Harry Truelove managed to steal fourth after a battle with Eugene McManus, who had been ahead into the final corner but ran wide, allowing Truelove to take the spot back as McManus was able to salvage fifth.
Owen Jenner was the winner in the GP2 class, beating his Kramer Racing team-mate Jack Nixon as third place went to LCQ winner Lucca Allen.
And in the Cup, Adon Davie got the better of Joe Farragher, as Cameron Hall secured third.
Quattro Group British Supersport, GP2 and HEL Supersport Cup, Sprint result:
1. Luke Stapleford (Macadam Triumph Racing)
2. Ben Currie (Oxford Products Racing Ducati) +0.437s
3. Jack Kennedy (Honda Racing UK) +0.689s
4. Harry Truelove (Astro-JJR Suzuki) +16.067s
5. Eugene McManus (ROKiT Haslam Racing Ducati) +16.262s