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Juan Soto’s Warning Signs For A Sophomore Slump

While Juan Soto won’t officially log a full season of at-bats in 2018, we’ll still consider 2019 to be his rookie encore…his sophomore season… his… whatever you want to title it. As a Juan Soto shareholder, I’ve been following his rapid ascent quite closely. Once he debuted I was quite happy to gobble up all his Statcast data and start finding comps for his batted ball profile. Now that there’s been significant time to make some preliminary observations, I want to share with you the a few things of note from his profile. Again, if you’d like to play around with the tool I’ve made in Tableau, please feel free!

  1. Juan Soto has power to all fields in the air but doesn’t pull the ball in the air frequently.

Juan Soto Flyball Profile

This is the most impressive thing about Soto’s rookie campaign. He is already able to generate plenty of opposite field exit velocity, though he doesn’t pull the ball much in the air at this point. My gut reaction was to throw in Domingo Santana (another player I saw warning signs on) and Marcell Ozuna. Santana was included because I knew his flyball profile skewed heavily to the opposite field, and despite not generating elite exit velocity he was able to homer quite a bit to the opposite field in 2017. Marcell Ozuna is another comp that sprang to mind, though like Santana, he doesn’t generate elite exit velocity often on opposite field flies.

  1. Juan Soto currently has a small “sweet spot” in his batted ball profile.

Juan Soto Batted Ball Profile

Some people might point to Soto’s average launch angle ( 6°) to tell you his batted ball profile might be suspect. That’s a great place to start, but what I’m most interested in is his sweet spots for doing damage between 8 and 40 degrees, and this is where my mental comps start to pay off. In this regard he’s very Ozuna-esque, even homering at about the same rate in each of the vertical launch angle bins. What you’ll immediately notice about Soto, which is backed up by his average launch angle, is that more than 50% of his batted balls are hit with less than 8° of loft. Further, if you include all plate appearances, the walks and strikeouts paint a picture of an extremely limited set of damage-inducing plate appearances (much like Santana). This is of particular importance to those of you playing in HR/TB/SLG leagues that don’t have a OBP component.

  1. Juan Soto doesn’t BABIP well on balls hit at low launch angles

Juan Soto Groundball Profile

The bottom line here is that Soto just isn’t up to snuff on hitting the ball hard on the ground. As a secondary issue, pulled ground balls don’t turn into hits very often. He’ll need to continue to progress and figure out how to hit the ball back up the middle and the other way. Right now he looks like a poor man’s Ozuna on the ground as well as in the air. The good news is he’s got plenty of time to grow as a hitter.


Juan Soto is an amazingly-talented young ball-striker, but there are still multiple holes in his game that may allow for exploitation by an adjusting league. I’m not saying that anyone should be selling high on Juan Soto by any means, but I’m hoping to expose some of his risk profile entering 2019. While you can’t help but get excited about your shares of Soto in dynasty leagues, it’s good to know where you will need to bolster your offense should Soto hit speed bumps. Keep watching Soto’s pull rate on fly balls and keep watching his average launch angle to see if he’s making progress as we close out 2018 and get going on 2019. If you leave this article with one takeaway it should be to not just pencil him in for an even more impressive season next year because there’s still work to do.

The Author

Jim Melichar

Jim Melichar

Born and raised in southern Wisconsin - a tragically supportive Brewers fan. You can find my nerdy baseball data projects on Twitter @Melicharts.


  1. […] sees warning signs that Juan Soto may be in for a sophomore slump in […]

  2. Chad
    September 1, 2018 at 10:45 am

    I have Soto and also Ozuna and dropped Domingo during his debacle. So this was a very interesting article – just not sure how to break it down as a positive or negative. He is young and it is going to be his year 20 season so I obliviously want to keep him. But there is major value there now! Would try to move for top SP like player, which I could use bad (only Nola and Stras really) with the following OFs? Betts, Mazara, Polanco, Ozuna, Puig, Eloy, Robles, Yordan (really need to be 1b) & others w/ multi like KB and Scooter. It is full dynasty w/ no years or $ and 25 categories (13/12). TDG has always been a great trusted resource so your thoughts would be much appreciated! Thanks much!

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