Shelbourne will be favoured to take on Linfield in the Conference League play-off second leg after a 3-1 win.
Harry Wood's penalty and second-half goals from Mipo Odubeko and Evan Caffrey gave Joey O'Brien's side the lead at Tolka Park.
Odubeko missed a penalty in the first half and Linfield finished the game with ten men after Matt Fitzpatrick was sent off.
Mipo Odubeko scored Shelbourne's second goal. Photo: Ryan Byrne/Inpho
Shamrock Rovers are also in a favourable position ahead of the second leg of their Conference Round tie.
Rovers secured a 2-1 away win over Portuguese side Santa Clara in the Azores.
Goals from Danny Grant and Danny Mandroiu gave the Hoops a 2-1 lead heading into next week's game in Tallaght.
Shamrock Rovers' Daniel Mandroiu, Roberto Lopez and Daniel Cleary celebrate after scoring. Photo: Inpho
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