README.md

---
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

```python
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.