Michael Laverty and Glenn Irwin raced to 10th-place finishes in the latest British Superbike Championship round at Donington Park.
Toomebrdge rider Laverty was 10th in the opening race with Carrickfregus man Irwin 13th and the positions were reversed in race two.
Alastair Seeley failed to finish race one and did not compete in race two.
Fermanagh's Josh Elliott came in third in the Superstock 1000 race while Keith Farmer was fourth.
Carl Phillips was another Northern Ireland rider in action, finishing third in the Superstock 600 event.
Laverty and Irwin both failed to make the end-of-season top-six showdown in the British Superbikes.
Shane Byrne, who won both races at the English circuit, is 27 points clear at the top of the standings.
Laverty lies ninth and Irwin 12th going into the final two BSB rounds at Assen and Brands Hatch.