The Phantoms dropped their fourth straight as their recurring issues converged in one game.
Again, they struggled on special teams and fired off over 40 shots with too few goals. Forty-two shots only created one goal for the Phantoms, who also gave up two power-play goals and one shorthanded.
The second period may have been a microcosm of their latest slide.
The Phantoms outshot the Americans 25-6, but did not dominate play nearly as much as that stat suggests. When the period ended, Rochester had scored two goals and Adirondack none.
Once again, the Phantoms committed costly mistakes and didn't capitalize on their own opportunities.
Kevin Porter scored his first of two-second period goals at 5:56 on a power play. Jeff Dimmen took a roughing call after jumping to Jason Akeson's defense after a clean hit by Mark Mancari. In the final seconds of the advantage, Mancari took a shot from the point. Luke Adam got the rebound and, when Cal Heeter positioned himself to make the save, passed to Porter at the other side of the crease for the goal.
Later in the frame, Porter made a move to beat Couturier at the Rochester blue line and then had an easy two-on-one for the short-handed goal.
Immediately after going down 3-1, the Phantoms had an extended five-on-three power play. They did nothing with it, however.
Adirondack wasn't able to do anything with any of its five power plays in the game and has now scored on only three of its 25 power plays in the past four games.
When the Phantoms did put together good scoring chances, Connor Knapp stood strong in net for Rochester.
In the first period, Rob Bordson made a steal and then passed up to linemate Zac Rinaldo in an odd-man rush with Tyler Brown. Knapp made the save on Rinaldo's shot and Brown's rebound.
Rinaldo had another chance in the second period when he blew past Jerome Gauthier-Leduc and then made a move to get around Joe Finley. But, again, Knapp made the save.
The first and third periods were relatively evenly-played. Rochester scored first with a power-play goal by Brian Flynn at 3:44. The Phantoms responded just two shifts later as Sean Couturier scored on a rebound from Jason Akeson's shot.
The goal was Couturier's seventh and was Akeson's eighth point in seven games with the Phantoms. Matt Konan had the secondary assist for his first AHL point, in his first AHL game. But Couturier's birthday goal was the only one for the Phantoms and it wasn't enough.