Goals from Chris Forrester and man-of-the-match Daryl Kavanagh gave St. Patrick's Athletic a big 2-0 win over Dundalk in the top-of-the-table clash at Richmond Park to edge the Inchicore side closer to a first title in 14 years.
Forrester struck for the lead goal six minutes into the second half when getting his head to Conan Byrne's right wing cross to beat Peter Cherrie in the visitors' goal.
Byrne was again the provider for the second goal seven minutes later, cutting in from the right, beating a defender before setting up Kavanagh to shoot to the roof of the net.
Dundalk had skipper Stephen O'Donnell sent off on 75 minutes as they now slip three points behind St. Pat's.
Third-placed Sligo Rovers moved to within two points of Dundalk after a 3-0 win at UCD.
Kieran Djilali put Sligo ahead five minutes into the second half with a goal of the month contender with a delightful finish from the edge of the area.
Ex-Cameroon international Joseph Ndo doubled the lead on 65 minutes when scoring directly from a corner. Aaron Greene then set up Danny North to tap home the third goal a minute from the end of normal time.
Goals early and late from David McDaid and Michael Rafter gave fouth-placed Derry City the three points as they beat Bray Wanderers 2-0 at the Brandywell to end a run of three league defeats.
McDaid headed Derry in front on six minutes from fullback Simon Madden's right wing cross. Rafter sealed the win 11 minutes from time, rounding keeper Darren Quigley to tap home after showing good control from Paddy McEleney's pass.
Dinny Corcoran, Ryan McEvoy and Dave Mulcahy provided the goals as Bohemians gave themselves a vital Premier Division lifeline with a 3-0 win at relegation rivals Shelbourne.
Bohs now have a five-point cushion over Shels, who remain bottom though with a game in hand, and are four clear of Bray.
Clearly looking the more comfortable side, Bohs took a deserved lead on 18th minutes when Karl Moore nodded down Anto Murphy's cross for Corcoran whose low drive was merely helped into the net by defender Adam O’Connor.
Despite Shels having a bit more impetus to their game on the resumption, it was Bohs who looked the more dangerous every time they got forward and they doubled their lead on 57 minutes. Keith Buckley flicked on a throw and McEvoy hooked the ball home from a tight angle.
Skipper Mulcahy added the third goal on 83 minutes, tapping home at the near post from Moore’s low cross.