A downpour combined with lightning in the area delayed kick off for almost two hours and another storm stopped play 4 minutes in the second half. The second delay was enough for US Soccer and match officials to declare Chicago victorious with a 2-1 lead and no apparent chance to resume the match.
After a sluggish start from both teams, Grant Ward put the Fire on top in the 22nd minute after taking a pass from Quincy Amarikwa following a good build up. The Fire controlled the bulk of possession for the remainder of the half and Mike Magee put the home team up 2-0 after Jeff Larentowicz headed a ball in his direction from a corner kick.
Pittsburgh got a goal back in the 41st when Andrew Marshall headed home a second ball from a free kick. Larentowicz appeared to have cleared the ball off the line as he was standing in the goal area but the referee ruled that the ball had completely crossed the line.
Played resumed for the second half with more inclement weather approaching. Magee almost made it 3-1 when his shot hit the crossbar in the 48th. One minute later lightning stopped the match again and the game was called with the Fire leading.
The win marks another odd chapter in the club's US Open Cup history. The Fire will host the Columbus Crew next Wednesday at 7:30 in the fifth round of the tournament.