Sean Maguire scored twice and Stephen Dooley, Gearoid Morrissey and Ryan Delaney were also on target as Cork thumped Finn Harps 5-0 to make it 12 wins from 12 this season.
Ronan Finn and David McAllister were on target in Shamrock Rovers 2-1 victory against Dundalk at Tallaght.
Second-place Bray drew one-all with St Pat’s, Derry City beat Bohemians 2-0 and it was two-all between Drogheda and Galway.
Athlone Town put their off-field problems to one side to beat Cobh Ramblers 2-1.
Christophe Rodrigues scored twice for the Midlanders.
Ahead of the game the FAI announed they’d widened their investigation into Athlone for alleged match-fixing, with three games now being examined after confidential information was past to the governing body of Irish football today.
Waterford have leap-frogged Cobh to the summit with a 1-0 victory over Shelbourne while UCD beat Wexford 2-0.