Cobh Ramblers failed to reach the top of the First Division as a 75th minute James Chambers penalty handed the home side a deserved draw at Tolka Park.
Cobh went into this game unbeaten in 13 but were without striker Michael O' Shea, with Graham Cummins and David O'Neill leading the line up front.
Ramblers began the day a point adrift of leaders Dundalk and couldn't have asked for a better start when finding the back of the net straight from the kick-off.
Gareth McCambridge had found himself in space down the right and with Shelbourne back-trekking, his ball was turned in at the near post by Shelbourne defender Aaron McEniff.
The goal was officially timed at nine seconds but the visitors were unable to build on their lead, with Dermot Keely's men drawing level on 11 minutes.
James Chambers had played the ball in from the right and Mark Leech converted from six yards out.
The visitors looked particularly exposed on the left of defence it could have been worse when Shelbourne's Glen Lacey squandered a glorious chance after being played in by Leech.
Shelbourne continued to dominated after the break with the quick-thinking Steven Deasy denying Mark Leech from close in on 55 minutes.
And then, against the run of play, Ramblers went in front when Alan Carey's cross from the left was headed home by Graham Cummins on 63 minutes.
Shelbourne were then awarded a penalty for a foul on Davitt Walsh, with James Chambers converting from the spot on 75 minutes.
Shelbourne: Hussey; O'Reilly, Gartland, Rafferty, McEniff; Harte, Murphy, Chambers, Lacey; Leech, Walsh
Cobh Ramblers: Deasy; Carey, Guthrie, Murray, Meade; Cambridge, Barrett, Kearney, Deady (McCarthy 25); Cummins, O' Neill
Referee: N Doyle (Dublin)