Karmane/mlb-weather-run-environment-research-sample

MLB Weather and Ballpark Run Environment Dataset for Total Research

Question this dataset helps answer: Which MLB weather and ballpark contexts historically align with higher or lower run environments before building totals, DFS, or fantasy research workflows?

This dataset helps totals researchers, fantasy baseball analysts, and sportsbook-market researchers compare MLB run environments using first-pitch weather, ballpark dimensions, roof context, field-oriented wind components, and rolling team scoring context.

Use the public sample to check:

• Which parks and weather-station matches are represented in the preview
• Which columns are pregame weather or rolling-context features versus postgame scoring outcomes
• Which temperature, wind, and run-environment combinations appear in the sample before buying the full file

Preview vs full dataset:

• Preview: 1200 rows and 84 columns
• Full: 24005 rows and 84 columns

Full dataset: https://thearticulated.gumroad.com/l/ubegdh

Responsible use note

This dataset is for research, analysis, dashboard building, educational use, and exploratory modeling. It does not provide betting advice, picks, guarantees, or predictions of future outcomes.

What the public sample can already answer

1. Which parks, roof types, and weather-station matches appear in the sample?
2. Which weather columns are available before first pitch, and which result columns only exist after the game finishes?
3. Which games in the preview show the strongest wind-out, crosswind, temperature, or humidity contexts?

Loading example

from datasets import load_dataset; ds = load_dataset("Karmane/mlb-weather-run-environment-research-sample"); print(ds["train"].to_pandas().head())

This is a free preview. Load it instantly, inspect the schema, and validate quality before purchasing the full dataset.

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What This Preview Proves

• Sample rows: 1,200 (full dataset: 24,005 rows)
• Columns: 84 fields, fully described below
• Format: parquet (loads in pandas, HF datasets, or any parquet reader)
• No authentication required to load this sample
• Schema and quality are identical to the paid full dataset

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Upgrade to Full Dataset

The full production dataset contains 24,005 rows across 84 columns.

Full dataset access: https://thearticulated.gumroad.com/l/ubegdh

After purchase, provide your Hugging Face username and request access on the full dataset page.

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Quick Start

from datasets import load_dataset

dataset = load_dataset("Karmane/mlb-weather-run-environment-research-sample")
df = dataset["data"].to_pandas()
print(f"Rows: {len(df):,}, Columns: {len(df.columns)}")
print(df.head())

Or with pandas directly:

import pandas as pd
df = pd.read_parquet("hf://datasets/Karmane/mlb-weather-run-environment-research-sample/data/data.parquet")
print(df.head())

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Use Cases

• Compare total runs across temperature bands, humidity regimes, and wind-out conditions.
• Screen parks and roof types by historical run environment before writing or modeling.
• Build time-aware notebooks that keep pregame weather features separate from postgame scoring outcomes.
• Filter games by ballpark orientation, start time, or rolling team offense context for research workflows.

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Column Descriptions

• record_id: Stable unique identifier for one completed MLB game row.
• game_pk: MLB Stats API game identifier stored as text.
• season: MLB season year attached to the regular-season game.
• official_date: Official calendar date of the game.
• game_datetime_utc: Scheduled game start time in UTC.
• game_month: Calendar month of the game date.
• game_weekday: Weekday label for the official game date.
• game_local_start_hour: Local scheduled start hour at the venue timezone.
• day_night: Source label for day or night start context.
• scheduled_innings: Scheduled innings count from the game metadata.
• doubleheader_flag: Boolean flag showing whether the game was part of a doubleheader sequence.
• games_in_series: Number of games in the series when provided by the source.
• series_game_number: Sequence number of the game within its series when provided by the source.
• series_description: Series descriptor such as regular season or opening series.
• venue_id: Venue identifier from the public MLB source.
• venue_name: Venue name for the game.
• venue_city: Venue city from the public source.
• venue_state: Venue state or province abbreviation when available.
• venue_country: Venue country from the public source.
• venue_timezone: IANA timezone name for the venue.
• venue_elevation_feet: Venue elevation from the public source metadata, generally reported in feet.
• field_azimuth_to_center_deg: Field azimuth angle toward center field used to derive wind-out and crosswind components.
• roof_type: Roof type from venue metadata, such as Open, Dome, or Retractable.
• turf_type: Playing surface or turf type from venue metadata.
• left_line_feet: Listed distance down the left-field line.
• left_center_feet: Listed distance to left-center field.
• center_field_feet: Listed distance to straightaway center field.
• right_center_feet: Listed distance to right-center field.
• right_line_feet: Listed distance down the right-field line.
• is_dome: Boolean flag for dome roof types.
• is_retractable_roof: Boolean flag for retractable-roof venues.
• is_open_air: Boolean flag for open-air venues where outside weather is more directly relevant.
• home_team_id: Home team identifier from the MLB source.
• home_team_abbreviation: Home team abbreviation.
• home_team_name: Home team full display name.
• away_team_id: Away team identifier from the MLB source.
• away_team_abbreviation: Away team abbreviation.
• away_team_name: Away team full display name.
• weather_station_id: Nearest Meteostat station identifier used to source hourly weather for the venue.
• weather_station_name: Nearest Meteostat station name used for the weather match.
• weather_station_distance_m: Approximate straight-line distance in meters from the venue to the matched weather station.
• temperature_f: Archived hourly air temperature near first pitch converted to degrees Fahrenheit.
• relative_humidity_pct: Archived hourly relative humidity percentage near first pitch.
• precipitation_mm: Archived hourly precipitation amount near first pitch in millimeters.
• wind_speed_mph: Archived hourly wind speed near first pitch converted to miles per hour.
• wind_gust_mph: Archived hourly peak wind gust near first pitch converted to miles per hour when available.
• wind_direction_from_deg: Archived hourly meteorological wind direction in degrees, representing where the wind came from.
• wind_out_to_center_mph: Derived wind component in miles per hour toward center field. Positive values imply wind blowing out, negative values imply wind blowing in.
• crosswind_mph: Derived cross-field wind component in miles per hour based on venue orientation.
• barometric_pressure_hpa: Archived hourly mean sea level pressure near first pitch in hectopascals.
• cloud_cover_pct: Archived hourly cloud-cover percentage near first pitch when available.
• home_prior_games_played: Number of prior completed games for the home team before this game.
• away_prior_games_played: Number of prior completed games for the away team before this game.
• home_days_since_prev_game: Calendar days since the home team's prior completed game.
• away_days_since_prev_game: Calendar days since the away team's prior completed game.
• rest_advantage_days: Home-team rest gap minus away-team rest gap.
• home_rolling_runs_scored_last_5: Pregame rolling average runs scored across the home team's previous five completed games.
• away_rolling_runs_scored_last_5: Pregame rolling average runs scored across the away team's previous five completed games.
• home_rolling_runs_allowed_last_5: Pregame rolling average runs allowed across the home team's previous five completed games.
• away_rolling_runs_allowed_last_5: Pregame rolling average runs allowed across the away team's previous five completed games.
• home_rolling_total_runs_last_5: Pregame rolling average total runs across the home team's previous five completed games.
• away_rolling_total_runs_last_5: Pregame rolling average total runs across the away team's previous five completed games.
• home_rolling_hits_last_5: Pregame rolling average hits recorded by the home team across its previous five completed games.
• away_rolling_hits_last_5: Pregame rolling average hits recorded by the away team across its previous five completed games.
• home_rolling_win_pct_last_5: Pregame rolling win percentage across the home team's previous five completed games.
• away_rolling_win_pct_last_5: Pregame rolling win percentage across the away team's previous five completed games.
• home_season_to_date_runs_scored_avg: Pregame season-to-date average runs scored by the home team before this game.
• away_season_to_date_runs_scored_avg: Pregame season-to-date average runs scored by the away team before this game.
• home_season_to_date_runs_allowed_avg: Pregame season-to-date average runs allowed by the home team before this game.
• away_season_to_date_runs_allowed_avg: Pregame season-to-date average runs allowed by the away team before this game.
• home_score: Final runs scored by the home team.
• away_score: Final runs scored by the away team.
• total_runs: Combined final runs scored in the game.
• run_differential: Home-team run differential for the game.
• home_team_won: Boolean flag showing whether the home team won the game.
• home_hits: Final hits recorded by the home team.
• away_hits: Final hits recorded by the away team.
• total_hits: Combined final hits recorded by both teams.
• home_errors: Final errors charged to the home team.
• away_errors: Final errors charged to the away team.
• total_errors: Combined final errors charged to both teams.
• source_url: Game endpoint URL from the public MLB Stats API.
• source_domain: Source domain summary for the dataset row.
• last_collected_at: UTC timestamp when this dataset build collected and transformed the row.

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Dataset Structure

• Rows: 1,200
• Columns: 84
• Split: data
• File: data/data.parquet

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Full Dataset Access

	Sample (this repo)	Full Dataset
Rows	1,200	24,005
Columns	84	84
Auth required	No	Yes (after purchase)
Price	Free	See pricing

Final CTA

Get the full dataset: https://thearticulated.gumroad.com/l/ubegdh

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Karmane. (2025). MLB Weather and Ballpark Run Environment Dataset for Total Research (Free Sample). Hugging Face. /datasets/Karmane/mlb-weather-run-environment-research-sample