Ulster pair Ryan Farquhar and William Dunlop clinched a victory apiece in the Supertwin and 125GP races respectively at today's Dundrod 150 road races.
The races were run concurrently but reached a premature conclusion when the red flags were deployed on the fourth of five scheduled laps following an incident at Cochranstown.
Farquhar held a commanding lead of 11 seconds in the Supertwin race on his KMR Kawasaki 650 and destroyed the chasing pack from the first lap, opening up a lead of nine seconds by the end of lap two.
The 36-year-old was an easy winner from Ballyclare's Jamie Hamilton, who made it a KMR one-two in second place, with Adrian Archibald completing the rostrum positions.
Farquhar will contest the Supertwin class again on Saturday at the Ulster Grand Prix, when he hopes to add another victory in the class to his successes at the North West 200 and Isle of Man TT.
Dunlop was locked in battle with Armoy national road race winner Wilson in the opening laps of the 125cc race before putting the hammer down to open a gap of two seconds.
The Ballymoney man had to battle through from the rear of the grid after experiencing problems in qualifying.
Olie Linsdell was third and Paul Robinson fourth.