SLIGO Rovers have conceded ground to their title rivals after playing out a scoreless draw with Bray Wanderers at the Carlisle Grounds.
Ian Baraclough's side's lead at the summit has been cut to seven points to second place Drogheda United and nine to St Patrick's Athletic who have a game-in-hand.
Rafael Cretaro felt he should have had a penalty in the opening exchanges but his claims were waved away.
Bray grew into the game and forced Gary Rogers to make some saves before the break. Both sides had chances in the second period but couldn't force a winner.
UCD bagged an unlikely three points at the Brandywell as they gave their survival hopes a much-needed boost with a 2-1 win over Derry City.
The Students took the lead when midfielder Barry McCabe broke the offside trap and calmly side-footed home past an out-rushing Gerard Doherty before the break.
They doubled their advantage just 19 seconds into the second half through David McMillan. Derry did pull a goal back through Kevin Deery but couldn't find an equaliser.
BOHEMIANS had to be content with a share of the spoils as Cork City earned a 1-1 draw at Dalymount Park.
Vinny Sullivan gave the visitors the lead on 19 minute when he volleyed home Daryl Horgan's superb cross and Sullivan hit the post before the change of ends. Evan McMillan's (pictured) screamer just after the break brought the sides level. Kevin Feely had the best chance to force a winner for Bohs but his goal-bound header was cleared off the line.
In the final game of the night SHELBOURNE beat Dundalk 1-0 at Oriel Park. Paul Byrne and David Cassidy combined well in the build-up to the winner and Paddy Kavanagh needed just two touches to control and rifle the ball past Peter Cherrie.
Dundalk pushed but Marc Griffin's sending off -- for a challenge on Brian Shorthall -- near the end put pay to their chances of a comeback.