FanGraph Feature Focus: Pitch Type Breakdown

Seasonal baseball statistics are tried and true. They’re at the bottom of your screen every time a player steps into the box to hit or on the mound to play, and they’re on the leaderboards that BBWAA members read when deciding who to vote for at the end of each year. But separation is what keeps the engine going. They add context. They filled the void in radio. They define trends and create narratives. When you think “split” you probably think of group splits or monthly splits, all of which are great for Split leaderboards. But today I wanted to get a little more granular, so I left the main Splits Leaderboard page, and jumped into Pitch-Type Splits.
There’s a lot more you can do on this page than I can fit into a reasonably sized post, so this highlight will be a taste to whet your appetite.
Members-Only Features
- Members can export to Excel, while non-Members will have that button grayed out.
- The Pitch% column (ie, what percentage of pitches a pitcher throws or a hitter sees for a given pitch type) is available to members only. The column is hidden by default but there is a checkbox at the top:
- In the Descending Group, the Job Type/Pitch selection is also for members only:

Grouping by voice type is necessary to separate different voice types when selecting multiple voice types. Here’s Jacob Misiorowski’s fastball and slider with the default team:
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And if you collect by voice type:

The Pitch% column will use the hand as the denominator, so if you limit it to only the remaining pitchers when looking at hitters, it will be the pitch percentage shown. from the remaining dishes.
Quick Breakup

This is a great place to start playing all around, and you’ll be automatically split between Batting and Pitching depending on which quick division is selected. The pitch types here are automatically exclusive (eg, selecting a cutter will remove the selection of four-seam fastballs), and each pitch type can be combined with a single manual rendering filter. Consider this Pitch-Type Splits 101, a small volume of all this page has to offer.


Separate the parameters
This reduction represents Pitch-Type Splits 201, where filters can be combined into hundreds, if not thousands of possible leaderboards. Like Burger King, you can have it your way. Want to view sliders and curveballs from left-handed pitchers to left-handed hitters, grouped by batter, sorted by lowest strikeout rate? We got it:

Good changeups, forkballs, and splitters, sorted by who throws the rarest looking combo the most? There are buttons for that:

Time intervals

Leaderboards with data for every Statcast season, dating back to 2016, and Date Range selectors – and a Season option in the Group By dropdown at the top right – break the seasons into separate rows if you don’t want them to be combined. Depreciation Schedules have options for the last seven, 14, or 30 days, or the last, two, or three calendar years.
All of these features are a bouche of everything that leaderboards can accomplish, and as always, I encourage play and experimentation. This tool is one of the many at FanGraphs that gives more power to the user, especially to our members, thanks to the additional Pitch% column and the ability to export data.



