tomdoyo/open-command

OpenCommand

Catcher targets and pitcher command for MLB, inferred from broadcast video.

OpenCommand scores command using the pitch location's distance from target.

This dataset contains the 2025/2026 computer vision object detections, every intermediate the pipeline writes, and the resulting command scores. The pipeline itself and the full method write-up live at github.com/tomdoyo/open-command.

Download

hf download tomdoyo/open-command --repo-type dataset --local-dir data

That puts the tree where the pipeline expects it, so any stage re-runs from the code repo:

python src/solve_glove_locations.py 2026

One file instead of the whole tree:

hf download tomdoyo/open-command 2026/command_scores.csv --repo-type dataset

Data

Each season lives under <year>/.

Keys: (game_pk, play_id) identify a pitch.

Raw detections (in <year>/raw/) are produced using YOLO11 glove/ball/strikezone detector models, with postprocessing based on detection confidence.

File (per season)	One row per	Contents
pbp_info.csv.gz	pitch	Statcast 9-parameter trajectory, sz_top/sz_bot, plate location, pitcher, pitch type, and the game_date/type/venue
raw/gloveball_tracks/<game_pk>.csv.gz	frame	glove + ball detections (pixels on screen)
raw/strikezone_tracking.csv.gz	clip	broadcast strikezone detections (pixels on screen)
camera_poses.csv.gz	clip	camera pose (+ vote diagnostics & reprojection accuracies)
glove_locations/<game_pk>.csv.gz	detection	solved glove location (real-world)
targets.csv.gz	clip	naive/inferred targets
command_scores.csv	pitcher, pitch type	n, naive and inferred median miss

fg_pitching_2025.csv.gz and fg_pitching_2026.csv.gz sit at the root, carrying the FanGraphs season lines command is validated against.

License & citation

Everything here is released under CC BY-NC-SA 4.0: use it, build on it, publish with it, with attribution (cite OpenCommand) and not commercially.

Data derived from MLB broadcast video and Statcast public feeds. MLB and Statcast are trademarks of MLB Advanced Media, L.P.; this project is not affiliated with MLB.

@dataset{kim_opencommand,
  author  = {Kim, Tom},
  title   = {OpenCommand: open catcher-target and pitcher-command data for MLB},
  year    = {2026},
  url     = {https://open-command.com},
  note    = {https://github.com/tomdoyo/open-command}
}