DOLPHIN 16 CORK CONSTITUTION 18, Musgrave Park
Scorers: Dolphin: Try: Nick Williams; Con: Barry Keeshan; Pens: Barry Keeshan 2; Drop: Barry Keeshan
Cork Constitution: Tries: Daragh Lyons, Simon Zebo; Con: Daragh Lyons; Pen: Richie Lane; Drop: Daragh Lyons
Dolphin's unbeaten home run in AIB League and Cup rugby, which stretched back to March 2007, fell as tries in either half from Daragh Lyons and Simon Zebo helped Cork Con maintain their cup run.
Dolphin made a confident start, moving into a 3-0 lead in the 11th minute thanks to a penalty from Barry Keeshan, 40 metres out.
But the home side were clearly missing the guiding presence of number 8 James Coughlan, who is on duty with the Ireland Sevens squad, and they lost hooker Andrew O'Driscoll to the sin-bin midway through the first half.
By that time, Richie Lane had levelled for Cork Con from a penalty and the points were soon flowing for Brian Walsh's side.
A neat pass from John Stringer, brother of Munster and Ireland's Peter Stringer, set up his half-back partner Daragh Lyons for a run at the Dolphin defence.
Lyons duly broke the line and from 30 metres out, he sliced his way through the cover to touch down under the posts.