Click here to see full BSB qualifying results from Knockhill
Shane Byrne was made to sweat while taking a second consecutive pole position after suffering a crash in the final few moments of qualifying and is joined on the front row by his PBM Kawasaki team-mate Stuart Easton and Milwaukee Yamaha's Josh Brookes.
Byrne had been sparring with Brookes for P1 during the opening stages of the top ten shootout until he suffered a low side off at turn seven with three minutes remaining.
The four-time BSB champion had set the quickest lap, a 48.153s, before his crash and with the provisional pole-sitter out of action it provided a golden opportunity to his rivals, but neither Easton nor Brookes could find the vital tenth of a second to displace Byrne as the chequered flag fell.
Local rider Easton was able to nip ahead of Brookes to grab a PBM Kawasaki 1-2, while double rostrum winner at Snetterton Jason O'Halloran will start from fourth on the grid for tomorrow's race one.
Buildbase BMW's Ryuichi Kiyonari made a small return to form by taking fifth place ahead of the bruised JG Speedfit Kawasaki rider James Ellison.
Tyco BMW's Michael Laverty, Be Wiser Kawasaki's Danny Buchan and Honda's Dan Linfoot make up row three while Quattro Plant Kawasaki converted his fine form this weekend into his first top ten start of the season.
Chris Walker was a qualifying absentee after the Be Wiser Kawasaki rider suffered a nasty high side crash during Friday practice, forcing him to miss qualifying, and will start from 30th on the grid for race one. At the front PBM Kawasaki pair Easton and Byrne headed the pack and looked in ominous form as the chequered flag fell on Q1.
In Q2 Byrne laid down his first marker of the afternoon by going under the existing lap record with a 48.175s to pull out nearly two-tenths on the rest. Bennetts Suzuki's Christian Iddon suffered a slow low side fall at the hairpin while trying to push into the top ten but missed out and will start from 15th.
As the top ten shootout began Byrne and Brookes traded fastest laps to take turns at the top but as time ticked down until the defending BSB champion took a low side tumble unhurt at turn seven to open the door to the chasing pack.
The Kent-based rider watched on from trackside as his rivals attempt to steal pole but it wasn't to be as the championship leader grabbed back-to-back poles after also taking P1 at Snetterton.