README.md

metadata

license: mit
task_categories:
  - other
language:
  - en
tags:
  - baseball
  - mlb
  - statcast
  - sports-analytics
size_categories:
  - 100K<n<1M
dataset_info:
  features:
    - name: pitch_type
      dtype: string
    - name: game_date
      dtype: string
    - name: release_speed
      dtype: float64
    - name: release_pos_x
      dtype: float64
    - name: release_pos_z
      dtype: float64
    - name: player_name
      dtype: string
    - name: batter
      dtype: int64
    - name: pitcher
      dtype: int64
    - name: events
      dtype: string
    - name: description
      dtype: string
    - name: spin_dir
      dtype: int64
    - name: spin_rate_deprecated
      dtype: int64
    - name: break_angle_deprecated
      dtype: int64
    - name: break_length_deprecated
      dtype: int64
    - name: zone
      dtype: int64
    - name: des
      dtype: string
    - name: game_type
      dtype: string
    - name: stand
      dtype: string
    - name: p_throws
      dtype: string
    - name: home_team
      dtype: string
    - name: away_team
      dtype: string
    - name: type
      dtype: string
    - name: hit_location
      dtype: int64
    - name: bb_type
      dtype: string
    - name: balls
      dtype: int64
    - name: strikes
      dtype: int64
    - name: game_year
      dtype: int64
    - name: pfx_x
      dtype: float64
    - name: pfx_z
      dtype: float64
    - name: plate_x
      dtype: float64
    - name: plate_z
      dtype: float64
    - name: on_3b
      dtype: int64
    - name: on_2b
      dtype: int64
    - name: on_1b
      dtype: int64
    - name: outs_when_up
      dtype: int64
    - name: inning
      dtype: int64
    - name: inning_topbot
      dtype: string
    - name: hc_x
      dtype: float64
    - name: hc_y
      dtype: float64
    - name: tfs_deprecated
      dtype: int64
    - name: tfs_zulu_deprecated
      dtype: int64
    - name: umpire
      dtype: int64
    - name: sv_id
      dtype: int64
    - name: vx0
      dtype: float64
    - name: vy0
      dtype: float64
    - name: vz0
      dtype: float64
    - name: ax
      dtype: float64
    - name: ay
      dtype: float64
    - name: az
      dtype: float64
    - name: sz_top
      dtype: float64
    - name: sz_bot
      dtype: float64
    - name: hit_distance_sc
      dtype: int64
    - name: launch_speed
      dtype: float64
    - name: launch_angle
      dtype: int64
    - name: effective_speed
      dtype: float64
    - name: release_spin_rate
      dtype: int64
    - name: release_extension
      dtype: float64
    - name: game_pk
      dtype: int64
    - name: fielder_2
      dtype: int64
    - name: fielder_3
      dtype: int64
    - name: fielder_4
      dtype: int64
    - name: fielder_5
      dtype: int64
    - name: fielder_6
      dtype: int64
    - name: fielder_7
      dtype: int64
    - name: fielder_8
      dtype: int64
    - name: fielder_9
      dtype: int64
    - name: release_pos_y
      dtype: float64
    - name: estimated_ba_using_speedangle
      dtype: float64
    - name: estimated_woba_using_speedangle
      dtype: float64
    - name: woba_value
      dtype: float64
    - name: woba_denom
      dtype: int64
    - name: babip_value
      dtype: int64
    - name: iso_value
      dtype: int64
    - name: launch_speed_angle
      dtype: int64
    - name: at_bat_number
      dtype: int64
    - name: pitch_number
      dtype: int64
    - name: pitch_name
      dtype: string
    - name: home_score
      dtype: int64
    - name: away_score
      dtype: int64
    - name: bat_score
      dtype: int64
    - name: fld_score
      dtype: int64
    - name: post_away_score
      dtype: int64
    - name: post_home_score
      dtype: int64
    - name: post_bat_score
      dtype: int64
    - name: post_fld_score
      dtype: int64
    - name: if_fielding_alignment
      dtype: string
    - name: of_fielding_alignment
      dtype: string
    - name: spin_axis
      dtype: int64
    - name: delta_home_win_exp
      dtype: float64
    - name: delta_run_exp
      dtype: float64
    - name: bat_speed
      dtype: float64
    - name: swing_length
      dtype: float64
    - name: estimated_slg_using_speedangle
      dtype: float64
    - name: delta_pitcher_run_exp
      dtype: float64
    - name: hyper_speed
      dtype: float64
    - name: home_score_diff
      dtype: int64
    - name: bat_score_diff
      dtype: int64
    - name: home_win_exp
      dtype: float64
    - name: bat_win_exp
      dtype: float64
    - name: age_pit_legacy
      dtype: int64
    - name: age_bat_legacy
      dtype: int64
    - name: age_pit
      dtype: int64
    - name: age_bat
      dtype: int64
    - name: n_thruorder_pitcher
      dtype: int64
    - name: n_priorpa_thisgame_player_at_bat
      dtype: int64
    - name: pitcher_days_since_prev_game
      dtype: int64
    - name: batter_days_since_prev_game
      dtype: int64
    - name: pitcher_days_until_next_game
      dtype: int64
    - name: batter_days_until_next_game
      dtype: int64
    - name: api_break_z_with_gravity
      dtype: float64
    - name: api_break_x_arm
      dtype: float64
    - name: api_break_x_batter_in
      dtype: float64
    - name: arm_angle
      dtype: float64
    - name: attack_angle
      dtype: float64
    - name: attack_direction
      dtype: float64
    - name: swing_path_tilt
      dtype: float64
    - name: intercept_ball_minus_batter_pos_x_inches
      dtype: float64
    - name: intercept_ball_minus_batter_pos_y_inches
      dtype: float64
  splits:
    - name: train
      num_bytes: 1278467871
      num_examples: 1248824
  download_size: 234517903
  dataset_size: 1278467871
configs:
  - config_name: default
    data_files:
      - split: train
        path: data/train-*

Daily MLB Statcast Data

This dataset contains MLB Statcast data that is automatically updated daily.

Dataset Description

• Source: MLB Statcast via pybaseball
• Update Frequency: Daily
• Last Updated: 2025-07-24 21:31:32
• Repository: jab13/daily-statcast-data

Data Fields

The dataset includes comprehensive pitch-by-pitch data with over 80 fields including:

Basic Information

• game_date, game_pk, home_team, away_team
• batter, pitcher, fielder_2 through fielder_9
• balls, strikes, outs_when_up

Pitch Data

• pitch_type, pitch_name
• release_speed, effective_speed
• spin_rate, spin_axis
• release_pos_x, release_pos_y, release_pos_z

Location & Zone

• plate_x, plate_z
• sz_top, sz_bot
• zone

Outcome Data

• events, description, type
• hit_location, bb_type
• launch_speed, launch_angle
• hit_distance_sc

Advanced Metrics

• woba_value, woba_denom
• babip_value, iso_value
• estimated_ba_using_speedangle
• estimated_woba_using_speedangle

Usage

from datasets import load_dataset
import pandas as pd

# Load the dataset
dataset = load_dataset("jab13/daily-statcast-data")
df = dataset['train'].to_pandas()

# Basic analysis
print(f"Total pitches: {len(df):,}")
print(f"Date range: {df['game_date'].min()} to {df['game_date'].max()}")

# Pitch type distribution
pitch_types = df['pitch_type'].value_counts()
print("Most common pitch types:")
print(pitch_types.head())

# Exit velocity analysis
hits = df[df['launch_speed'].notna() & (df['launch_speed'] > 0)]
print(f"Average exit velocity: {hits['launch_speed'].mean():.1f} mph")

Data Pipeline

This dataset is maintained by an automated pipeline that:

1. Fetches daily Statcast data using pybaseball
2. Cleans and standardizes the data format
3. Merges with existing data and removes duplicates
4. Updates the Hugging Face dataset with new information

Data Quality

• Deduplication: Removes duplicate pitches based on game_pk, at_bat_number, and pitch_number
• Standardization: Consistent data types and null value handling
• Validation: Ensures data integrity before upload

Updates

The dataset is automatically updated daily at 6 AM UTC to include the previous day's games. Updates typically include:

• All pitch-by-pitch data from completed games
• Corrected data for any previously uploaded games
• Advanced metrics and calculated fields

License

MIT License - Data is publicly available from MLB Advanced Media.

Attribution

Data sourced from MLB Advanced Media via the pybaseball Python package.