Lee Johnston won two races on the opening day of the Scarborough Spring Cup road races at Oliver’s Mount.
The Fermanagh rider led his Honda 250cc to victory in the second ultralight race, winning by six seconds behind second Nick Anderson.
Johnston earlier won his Supersport race and now has 17 career successes on the Yorkshire Parkland course.
Bradford competitor Dean Harrison won his Supersport race and then took top honors in the Classic Superbike event.
The three-time winner of the Isle of Man TT at Oliver’s Mount now has a total of 96 victories.
Kawasaki rider Harrison enjoyed a comfortable 10.5 second margin of victory over David Bell after six laps in the weekend’s first Superbike outing.
Dominic Herbertson won the third of three Supersport rounds.
Paul Jordan of Magherafelt and Darryl Tweed of Ballymoney finished fourth and fifth respectively in the 600c race won by Johnston ridden on Ashcourt Racing.
Jamie Coward was the winner of the first Supertwins round, followed by Adam McLean of Tobermore and veteran Welshman Ian Lougher on his Paton.
Jim Hind won the second Supertwin round, while Phil Harvey took the checkered flag in the first of two ultralight races.