This article is part of our Farm Futures series.
This is the third annual Short-Season/Rookie Hitter Index. As you should know by now, the short-season and rookie leagues, which begin play every year in mid-June, are the breeding ground of tomorrow's elite prospects. Ronald Acuna, Juan Soto, Vladimir Guerrero Jr., Fernando Tatis Jr. and Wander Franco all saw their stock catapult in dynasty leagues before they got to Low-A (and in some cases before they played their first pro game). In serious dynasty leagues, if you don't roster these guys in rookie ball, you don't roster them.
What these players do on the field over the next 10 weeks is more important than anything they have done thus far in pro ball. I will update the top 400 prospect rankings as often as possible over the rest of the season, and the players in short-season and rookie leagues are the ones who can help their stock the most.
The whole point of this piece is to provide you a tool with which you can locate breakouts and guys you want to roll the dice on without further help from me. I tried to primarily include players at age-appropriate levels, so the top college guys from the 2019 draft were not included (they can really only hurt their stock in the levels below Low-A). This is such a fluid market for dynasty-league value, that I would recommend doing some of the legwork yourself. Do not hesitate. It's better to grab a guy and cut him for someone