For almost an hour, Pembroke looked good value for a win but for the second time within a year they threw away a commanding lead in the closing stages of a match with Instonians. Last time round, the Broke let a 3-0 lead slip in the ISC but recovered to win in extra-time.
This time, they let a 2-0 lead go in the last 12 minutes against a side whose star is very much on the way back up. Inst dished out a 4-1 thrashing to Annadale on Saturday and have leaped in recent times from sixth up to third in Ulster and in contention for the league and continued their rise this afternoon.
Alan Sothern - returning to the side along with Tim Lewis - gave the Leinster side an early lead on the quarter-hour with a rising reverse, preceding two green-card sin-binnings for Ronan Gormley and Conor Harte.
Sothern doubled the difference three minutes into the second half from a corner and continued to enjoy the majority of the play. The lead remained intact until the 59th minute when Chris Kirk drove home from the edge of the circle.
The prolific Chris Barnes had the game back level soon after with low shot from a corner, putting the outcome into the balance. And this time the winner went the Old Boy's way as Mark Irwin continued his recent scoring form to steal the win with 90 seconds on the clock.
Pembroke got an even later chance to tie but a short-corner and subsequent long corner were well cleared and so earned just a bonus point for their efforts.