We've worked through sliders, sweepers, four-seamers, sinkers. Today it's curveballs. It's a pitch that still plays more at the college level than it does in the pros, but these eight players highlighted may just have the hammers to them into pro ball. 

Curveballs carrying tool is drop. Pure vertical break. Our model rewards velocity first and foremost, but secondarily it rewards the traits that produce drop. We're looking for high spin, steep VAAs and, of course, the IVB itself. What you don't always need is horizontal break. Some of the best curveballs in the country come in the 12-6 variety. Some are a bit more slurvy. In any case, there's multiple ways to skin a cat, and several ways to rip through a yakker. 


For context: Stuff+ is scaled like wRC+ — 100 is average, 110 is good, 120 is plus, 130 is elite-rare. Our Stuff+ …