Michael Laverty secured his first win this year in the British Superbike Championship with victory at Thruxton in England on Monday.
The Swan Yamaha rider from Toomebridge won the opening race before finishing seventh in the second race.
His brother John was 20th and 13th with Lisburn's Ian Lowry 16th and 22nd.
Alastair Seeley, who was second in Sunday's Supersport race, was leading Monday's race by seven seconds when he reitired with an electrical fault.
The Carrickfergus rider, a recent winner at the North West 200, is second in the standings and 58 points behind leader Ben Wilson.
Castlerock's Marty Nutt followed up a 12th place finish in the Supersports by coming sixth on Monday.
Michael Laverty has moved up to fifth in the Superbike series after holding off Michael Rutter and Shane Byrne in wet conditions to take victory.
"To get a win is a weight off my mind now as I had been putting pressure on myself as we have been fast all season and it just hasn't quite come together in the race with bad luck and mistakes," Laverty told the BSB website.
"I had dropped out of the top six in the standings so knew a result here was so important and to be back on the top step of the podium is where we needed to be.
"It was a tough race and the conditions were difficult so I am well chuffed - these seem to be my conditions as my first win last year came in similar circumstances at Oulton Park."