If he pitches at any PG tournament they'll have someone with guns behind home plate recording his velo for his different types of pitches. A few weeks later he'll have those numbers added to his profile (at least it was a few weeks later when my 2016 pitched in GA).
If/when he attends a showcase they'll show the velo data right away and then a few weeks later he'll have a write up posted and a PG ranking (like 7.5, 8, 8.5, etc). I'm assuming there is more behind the scenes that a college coach could access as part of the scouting report but all that I've seen following tournaments is the numbers - velo by pitch type for pitchers.