It was a largely disappointing night for the Irish sides involved in Europa League qualifiers.
Cork City lost 2-0 at home to Progres Niederkorn of Luxembourg.
While St. Pat's also went down 2-0 to the Swedes of Norrkoping at Richmond Park.
Shamrock Rovers, however, will be pleased with their evening's work in Norway.
Roberto Lopes scored twice - with his second coming four minutes into injury time - as Rovers drew 2-2 away to Brann.
The second legs of all of those ties will be played next Thursday.