Australian Cameron Donald continued his dominance of the Easter Irish short circuit championship meetings by taking four wins at Kirkistown on Monday.
The Wilson Craig Honda rider won both Superbike races and the two Supersport races, setting a new course lap record at 55.35 seconds in the process.
Jamie Hamilton secured two Supertwins successes and Nico Mawhinney was a double 250cc winner.
Adam McLean and Nigel Percy both took victories in the 125cc class.
Michael Pearson and Emmet O'Grady were the runners-up in the Superbike races, while Mark Hanna and David Haire took second places in the Supersports.
Dylan and Derek Lynch won the two sidecar races.