That's wrong--HS rankings are predictions of how they'll do collegiately, hence why those rankings would go hand in hand with these ones. They're not an evaluation of how good a player is at that given moment. Read Dan Olson's article from last year where he states, "Who's the best prospect in the country, regardless of class?
Christyn Williams, a senior who has signed with Connecticut, is the best player in the country.
Charli Collier, a senior who has signed with Texas, is a really, really, really close second.
But the key word is "prospect." Who has the most potential? Who do I predict will have the best college career? I looked into my crystal ball and saw these as the top 10."
UConn signee Christyn Williams is No. 1 in the senior class. Texas-bound Charli Collier and Baylor-bound Aquira DeCosta are among the elite, too. But rising to the top is a prospect who hasn't yet played 20 high school games.
www.espn.com
Note how the prospect rankings lined up exactly with the HG rankings at the time for the 2018 kids.
Rankings never line up perfectly but they're a best guess. Some players develop into stars, others don't. Lots of factors go into this and it is difficult to predict. But it's a best guess effort and a great resource for us fans to learn about recruits and how professionals are assessing them.