Danny Buchan powered to his second Bennetts British Superbike victory of the season this afternoon after a race-long scrap with Josh Brookes.
The FS-3 Kawasaki rider spent much of the race behind Be Wiser Ducati's Australian before pouncing late on to move closer into showdown contention.
But it was disaster before the start for Buildbase Suzuki's Bradley Ray, who lost his front row spot on the grid after his GSXR stopped out on circuit during the warm up lap.
Pole man Brookes rocketed off the grid to slot ahead of Jason O'Halloran and Oxford Ducati's Tommy Bridewell, but by Park curve Buchan had jumped into second place as the Essex rider set about chasing Brookes.
Brookes and Buchan had already stretched a 1.3s lead with four laps in the bag while Bridewell carved past O'Halloran to grab third, just as Santander Salt TAG Racing's Dan Linfoot dumped his Yamaha at the bottom of Mansfield and crashed out of the top 10.
Bridewell soon bridged the gap up to Buchan and by half distance he had made the winning fight a battle of three as he stuck onto the back of the leading duo
Meanwhile, back in the scrap for the top five, local threat Peter Hickman was deposed as Redding scythed past him to go into fifth and began the hunt for Tyco BMW's Iddon in fourth.
Back at the front, Buchan finally grabbed the lead as he stuck it up the inside of Brookes at the bottom of Mansfield and immediately stretched a handful of tenths ahead.
The Aussie drew his deficit back and brought Buchan back within striking distance with three to go, but the former Superstock champ stretched it back out in the closing laps to bag his second victory of the season over a second clear of Brookes as Bridewell bagged third
After Iddon had run off track at Chris Curve on the final lap, the former Supermoto ace rejoined in sixth after allowing Redding and Hickman through into fourth and fifth.
McAMS Yamaha's O'Halloran led home the Irwin brothers as Tyco BMW man Glenn beat Honda Racing's Andrew to eighth, while RAF Regular and Reserves' Ryan Vickers completed the top 10.
