UC Irvine (15-4-3) scored with two seconds left in the match to advance in the tournament. Christopher Santana was credited with the game winner at 89:58
All-ACC keeper Brendan Moore showed why he was selected as one of the top players in the ACC in the second half. He skied high to haul in two crosses of corners in the first 10 minutes, and then made a really good save on a free kick in the 59th minute.
Enrique Cardenas unleashed a bending shot from the left flank that Moore momentarily fumbled but went to the ground to secure the save.
Carolina (9-6-5) failed to make the NCAA quarterfinals for the first time since 2007 primarily because its offense could not muster enough quality scoring chances today. Omar Holness had the only shot of the second half, but his attempt went well wide and high late in the match.
On the game's final sequence, UCI was able to take the ball away from the Carolina defense and fire a shot into the left side of the net with two seconds left.
The match was physical between the two clubs with 39 fouls called, limiting the scoring opportunities for both clubs.
In the first half, neither team made a save with all five shots going off target in the first 45 minutes.
UCI had a pair of decent look in the first half, but one was deflected wide and the other was blocked by the UNC defense.
Raby George and Tyler Engel accounted for Carolina's two shots in the first half.