2020dad posted: here is a link that may help.http://www.efastball.com/hitti...-speed-by-age-group/
as others have stated high exit velocity does not guarantee success but low exit velocity does guarantee failure. Bottom line on exit velo is you need to get that north of 90 mph for D1 baseball. The chart is a little confusing but basically we are talking 90+ off a tee with a bbcor bat. If you square the ball up at an astounding rate you may be able to get away with high 80's.
Here's a kid, Nick Allen, who was drafted in the 3rd Round, with an 82 mph Exit Velocity https://www.perfectgame.org/Pl...ofile.aspx?ID=353981
It is always better to do better with measureables, but the "rules" aren't quite so cut & dry