DES MOINES, Iowa - Johnston arrived at boys state soccer for the seventh time and were looking for their first state title. First, they had to get past Ames.
It was scoreless with 14 minutes to play, but Johnston's Elvir Ibisevic broke the deadlock.
The Dragons move to the semifinals for the fourth time.
In other results, defending champions Iowa City West defeated Valley 2-0.
Norwalk in its 10th trip in 11-years needed an upset over Glenwood. The Warriors win on penalty kicks after the score was tied at 1-1.
Perry won their first state tournament game 2-1 against Clear Creek Amana.