If those tournaments were run by Perfect Game I assure you there was PG staff at every game. There are certain qualifiers that are run by people other than PG.
If your son is a 2018 throwing 85 last summer and he lives in Iowa, you should email firstname.lastname@example.org right away. Of course there are other things to consider, but 85 at his age will definitely create interest. BTW, over the past 20 years all but one player that has gone on to play DI college baseball or that has been drafted in the state of Iowa has played in PG events. 85mph before his sophomore year is enough to make the above a possibility.