Ok, after some quick Googling, it looks like some folks even put Szczur's speed up near 80. I'm guessing he loses to Campana in a foot race, but so does almost every other player at any level of baseball. Szczur's probably in the 98% percentile of MLB speed, though.
They both have elite speed, though Campana's is just about as fast as it gets, while Szczur is a tick below that. I don't know where Szczur's speed lands on the 20/80 scale, but I'm guessing it's up near 70.
I know this isn't the right place to ask a question but I don't feel like making a new topic. Compared to Campana how much slower is Szczur?
99% would probably be safe. Other than Campana, Szczur is probably the fastest guy in the system (though DeVoss and Easterling might dispute that). Any of those guys would be at or near the top of the speed charts for any farm system.