Andrew Irwin beats brother Glenn to double up at Donington

The result represented a second one-two for the pair ahead of the final race of the weekend at 16:30, and leaves Andrew on 50 points, some 10 points clear of brother Glenn in the overall standings.

Glenn Irwin had led for the lion’s share of the race, but the younger Irwin brother, Andrew, capitalised on a mistake during the last lap to make a decisive move and seal the win.

Jason O’Halloran, who finished third, was not happy with an incident at the final chicane, where the Irwin brothers ran off the track, before coming back on.

“I am frustrated with that last chicane you know. The track limits are there for a reason, and if you are not going to implement a penalty, then I am not sure what they are there for," said O'Halloran.

“You know they came back on the tack and they hindered my exit and they still keep their positions, so I am fairly frustrated.”

Kyle Ryde finished fourth, with Danny Buchan and Tarran Mackenzie fifth and sixth.