IN ADDITION TO THE FOUR PLAYER RULE, there is a no-contact period in which the young lady cannot be coached by her school coaches if the program she has participated in is sanctioned by OHSSA. Runs from 8/4 through 9/1 this year (the dates vary according to years because the no-contact period is defined as the period ending on Labor Day and beginning four weeks prior to Labor Day). This is set forth in the softball general regulations as well as the general sports regulations (Section 7).
So unless there are more than 4 school girls on your DD's team or that team is coached by a coach at an OHSSA sanctioned school, your DD should not be at risk in playing an August tournament