Brad Guzan had seven saves for Atlanta.
Slisz scored in the 66th minute to give Atlanta a 3-1 lead. Saba Lobjanidze played a corner kick to the back post, where Williams headed back to in front of the net and Slisz tapped the finish inside the front post.
Alexey Miranchuk played a ball-in on a free kick the Williams redirected into the net from point-blank range to open the scoring in the 16th minute. Fortune scored on a one-touch finish off a cross played by Lobjanidze that somehow slipped through three defenders to give Atlanta a 2-0 lead in the 20th.
Miles Robinson headed home a corner kick played in by Evander in the 48th minute and Gerardo Valenzuela scored on a sliding first-touch finish off a cross by Lukas Engel in the 70th for Cincinnati. Roman Celantano had two saves.
Cincinnati (9-4-2), which had its three-game unbeaten streak snapped, had 59% possession and outshot Atlanta 27-12, 9-6 on target.
Jamal Thiaré capped the scoring in the fourth minute of stoppage time.
Cincinnati and Atlanta played to a 2-2 tie on March 22.
___
AP soccer: https://apnews.com/soccer