Shelbourne are waking up as the new SSE Airtricity League Premier Division champions.
Harry Wood grabbed an 84th minute winner at the Brandywell as Damien Duff's team beat Derry 1-nil to win the title last night.
It saw them finish just ahead of Shamrock Rovers, who beat Waterford 2-1 to keep the pressure on Shels on the night.
Stephen Kenny's St Pat's finished out the campaign strongly, with a 2-nil win at Sligo securing a third-place finish.
Galway United and Bohs drew at Dalymount Park, while there was a stalemate between Drogheda United and Dundalk.
A promotion relegation playoff against Drogheda United is the reward for the winners of this afternoon's First Division playoff final between Bray and Athlone Town.