---
license: mit
task_categories:
- video-classification
size_categories:
- 1M<n<10M
tags:
- baseball
- sports
- video-classification
- computer-vision
---
# Dataset Card for Dataset Name

<!-- Provide a quick summary of the dataset. -->

2.6 million clips of balls and called strikes from MLB games from the 2016 season through the 2023 season.

## Dataset Details

### Dataset Description

<!-- Provide a longer summary of what this dataset is. -->
The dataset consists of all listed balls and called strikes from Baseball Savant's [Statcast Search](https://baseballsavant.mlb.com/statcast_search) from 2016, when their video archives began, through the 2023 season.
This dataset includes the date, type (eg. FF, fourseam fastball), mph, spin rate, pitcher, batter, zone (1-14, corresponding to strike zone locations), count, inning, pitch result, and link to the video of the pitch.

- **Curated by:** Henry Freed
- **License:** MIT

## Uses

<!-- Address questions around how the dataset is intended to be used. -->
The original dataset, [Picklebot-50K](https://huggingface.co/datasets/hbfreed/Picklebot-50K), was collected to call balls and strikes using a neural network, and is only labeled with ball or strike.
With the additional metadata, one can imagine much more interesting classification and granular tasks like classifying pitch types.

## Dataset Structure

<!-- This section provides a description of the dataset fields, and additional information about the dataset structure such as criteria used to create the splits, relationships between data points, etc. -->
The dataset is three JSON files, split into train (80%), val (10%), and test (10%) files. They are structured as follows:


    {
        "date": "2017-05-06",  
        "pitch": "CU",
        "mph": "73.6",
        "spin_rate": "1997",
        "pitcher": "Garza, Matt(R)",
        "batter": "Jaso, John(L)",
        "zone": "8",
        "count": "0-1",
        "inning": "Bot 5",
        "pitch_result": "Called Strike",
        "video_link": "https://baseballsavant.mlb.com/sporty-videos?playId=e790b6cf-7ac4-45b8-8cd3-9cef03d759cb"
    }. 




## Dataset Creation

### Source Data

<!-- This section describes the source data (e.g. news text and headlines, social media posts, translated sentences, ...). -->
The data were scraped from Baseball Savant's [Statcast Search](https://baseballsavant.mlb.com/statcast_search).


#### Who are the source data producers?

<!-- This section describes the people or systems who originally created the data. It should also include self-reported demographic or identity information for the source data creators if this information is available. -->

[Baseball Savant](https://baseballsavant.mlb.com) and MLB/the broadcasters (whoever it is) originally created the videos.


## Bias, Risks, and Limitations

<!-- This section is meant to convey both technical and sociotechnical limitations. -->
First, as with Picklebot-50K, only balls and called strikes were connected. Additionally, this dataset is quite unbalanced: about two-thirds of the pitches are balls, and almost half of them are fourseam fastballs (see the plots below).
One should take care dealing with these imbalances. 

## Plots


| Pitch Results Distribution          | Pitch Types Distribution            | Pitch Zones Distribution                    |
| ----------------------------------- | ----------------------------------- | ------------------------------------------- |
| ![pitch results](plots/pitch_results.png) | ![pitch types](plots/pitch_types.png) | ![pitch zones](plots/pitch_zones.png) |