Glenavon earned a point from their visit to The Oval to face Glentoran despite ending the game with nine men and going a goal down.
The first half was largely bereft of talking points nor efforts on goal apart from Andrew Doyle's 23rd minute dismissal for a challenge on Chris Gallagher.
And the second half produced another red card, this time for Peter Campbell on 64 minutes following a foul on Ciaran O'Connor, his second caution of the game.
Glentoran looked to have made their numerical advantage finally count with just under a quarter-of-an-hour remaining through Robbie McDaid's spot-kick, awarded after Matthew Snoddy had fouled O'Connor on the edge of the area.
But, just a couple of minutes later, Calum Birney levelled for Glenavon after meeting Conor McCloskey's cross to nod past Dayle Coleing.
Andrew Mitchell, Dale Gorman and Luke McCullough all failed to convert second half chances for Glentoran as their opponents battled hard to secure a share of the spoils.
Glentoran: Coleing, Kane, McCullough, Bigirimana, Gallagher, McDonagh, Gorman, McDaid, Mitchell, Burns, Marron subs O'Neill (replaced Mitchell 58), R. Donnelly (not used), Clucas (not used), Brown (not used), O'Connor (replaced Gallagher 62), J. Donnelly (replaced Kane 67), Cowan (not used)