Create/Update free sample dataset

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README.md

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+---
+language:
+- en
+license: cc-by-4.0
+size_categories:
+- n<1K
+task_categories:
+- tabular-regression
+tags:
+- mlb
+- baseball
+- pitcher-props
+- strikeout-props
+- sports
+- sports-analytics
+- sports-betting-research
+- fantasy-baseball
+- starting-pitchers
+- player-game
+- tabular
+- parquet
+pretty_name: "MLB Starting Pitcher Strikeout Prop Dataset for Historical K Research (Free Sample)"
+configs:
+- config_name: default
+  data_files:
+      - split: data
+        path: "data/data.parquet"
+---
+
+# MLB Starting Pitcher Strikeout Prop Dataset for Historical K Research
+
+# MLB Starting Pitcher Strikeout Prop Dataset for Historical K Research
+
+**Question this dataset helps answer:**
+Which MLB starting pitchers historically clear common strikeout-prop thresholds, and what pregame workload, rest, pitch-count, and opponent strikeout context existed before first pitch?
+
+This dataset helps sports-betting researchers, fantasy baseball analysts, and dashboard builders compare, screen, and investigate MLB starting-pitcher strikeout history using rolling workload, pitch-count, rest, and opponent-team strikeout signals.
+
+**Use the public sample to check:**
+- Which starters, teams, venues, and seasons are represented in the preview
+- Which columns are usable as pre-event workload or opponent-K features versus post-event outcomes
+- Which rows already support 5+, 6+, 7+, and 8+ strikeout-threshold research
+
+**Preview vs full dataset:**
+- Preview: 840 rows and 110 columns
+- Full: 16808 rows and 110 columns
+
+**Full dataset access:** https://thearticulated.gumroad.com/l/mlb-starting-pitcher-strikeout-prop-trends
+
+The full dataset includes 16808 rows across MLB starting-pitcher game observations, making it large enough for dashboard analysis, historical filtering, strikeout-prop research, and exploratory modeling workflows.
+
+## 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.
+
+## Modeling notes
+
+- Each row represents one actual starting pitcher in one completed MLB regular-season game.
+- Pre-event features include rolling strikeout form, pitch counts, rest timing, quality-start history, team offense context, and opponent-team strikeout environment.
+- Outcomes include actual strikeouts, innings pitched, walks, hits allowed, earned runs, and threshold-hit flags for common strikeout-prop ladders.
+- The coverage window runs from 2023-03-30 through 2026-06-18.
+- The preview is meant to prove schema, coverage, row meaning, and pre-event versus post-event separation rather than replace the full dataset.
+
+
+**This is a free preview.** Load it instantly, inspect the schema, and validate quality before purchasing the full dataset.
+
+---
+
+## What This Preview Proves
+
+- **Sample rows:** 840 (full dataset: 16,808 rows)
+- **Columns:** 110 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
+
+---
+
+## Upgrade to Full Dataset
+
+The full production dataset contains **16,808 rows** across **110 columns**.
+
+**Full dataset access:** [https://thearticulated.gumroad.com/l/wadakh](https://thearticulated.gumroad.com/l/wadakh)
+
+After purchase, provide your Hugging Face username and request access on the [full dataset page](https://huggingface.co/datasets/Karmane/mlb-starting-pitcher-strikeout-prop-trends).
+
+---
+
+## Quick Start
+
+```python
+from datasets import load_dataset
+
+dataset = load_dataset("Karmane/mlb-starting-pitcher-strikeout-prop-trends-sample")
+df = dataset["data"].to_pandas()
+print(f"Rows: {len(df):,}, Columns: {len(df.columns)}")
+print(df.head())
+```
+
+Or with pandas directly:
+
+```python
+import pandas as pd
+df = pd.read_parquet("hf://datasets/Karmane/mlb-starting-pitcher-strikeout-prop-trends-sample/data/data.parquet")
+print(df.head())
+```
+
+---
+
+## Use Cases
+
+- Compare which starters historically clear 5+, 6+, 7+, 8+, or 9+ strikeout thresholds.
+- Screen starter rows by recent pitch counts, rest timing, opponent strikeout rates, or prior history against the same team.
+- Build time-aware notebooks that keep pregame workload features separate from postgame outcomes.
+- Filter by team, opponent, venue, or strikeout environment before building dashboards or exploratory models.
+
+---
+
+## Column Descriptions
+
+- `record_id`: Stable row identifier built from the MLB game identifier and actual starting pitcher identifier.
+- `game_pk`: Official MLB game identifier for the completed regular-season game.
+- `season`: MLB season year for the game.
+- `official_date`: Official game date in local calendar terms.
+- `game_datetime_utc`: Scheduled first-pitch timestamp in UTC.
+- `day_night`: MLB day or night game label.
+- `doubleheader_flag`: Boolean flag indicating that the game was part of a doubleheader.
+- `games_in_series`: Number of games scheduled in the series when provided by MLB.
+- `series_game_number`: Game number inside the series when provided by MLB.
+- `series_description`: MLB series label such as Regular Season or Interleague.
+- `scheduled_innings`: Scheduled inning count for the game.
+- `venue_id`: Official MLB venue identifier.
+- `venue_name`: Venue name for the game.
+- `venue_city`: Venue city.
+- `venue_state`: Venue state or province abbreviation when provided by MLB.
+- `venue_timezone`: Venue timezone identifier from the official schedule feed.
+- `team_id`: Official MLB identifier for the starting pitcher's team.
+- `team_abbreviation`: Team abbreviation for the starting pitcher's team.
+- `team_name`: Full team name for the starting pitcher's team.
+- `opponent_team_id`: Official MLB identifier for the opposing team.
+- `opponent_team_abbreviation`: Team abbreviation for the opposing team.
+- `opponent_team_name`: Full team name for the opposing team.
+- `home_away`: Home or away context for the starting pitcher's team.
+- `is_home`: Boolean flag indicating that the starting pitcher's team was at home.
+- `starter_id`: Official MLB player identifier for the actual starting pitcher.
+- `starter_name`: Full player name for the actual starting pitcher.
+- `probable_starter_id`: Official MLB player identifier for the probable starter from the schedule feed.
+- `probable_starter_name`: Name of the probable starter from the schedule feed.
+- `starter_was_probable`: Boolean flag indicating whether the actual starter matched the listed probable starter.
+- `outs_recorded`: Outs recorded by the starting pitcher in the completed game.
+- `innings_pitched`: Innings pitched by the starting pitcher, normalized so one out equals one-third of an inning.
+- `hits_allowed`: Hits allowed by the starting pitcher in the completed game.
+- `runs_allowed`: Runs allowed by the starting pitcher in the completed game.
+- `earned_runs_allowed`: Earned runs allowed by the starting pitcher in the completed game.
+- `walks_allowed`: Walks allowed by the starting pitcher in the completed game.
+- `strikeouts_recorded`: Strikeouts recorded by the starting pitcher in the completed game.
+- `home_runs_allowed`: Home runs allowed by the starting pitcher in the completed game.
+- `batters_faced`: Batters faced by the starting pitcher in the completed game.
+- `pitches_thrown`: Pitches thrown by the starting pitcher in the completed game.
+- `strikes_thrown`: Strikes thrown by the starting pitcher in the completed game.
+- `balls_thrown`: Balls thrown by the starting pitcher in the completed game.
+- `era_display`: MLB-reported ERA shown in the box score after the game.
+- `whip_display`: MLB-reported WHIP shown in the box score after the game.
+- `team_score`: Runs scored by the starting pitcher's team in the completed game.
+- `opponent_score`: Runs scored by the opposing team in the completed game.
+- `team_hits`: Hits recorded by the starting pitcher's team in the completed game.
+- `opponent_hits`: Hits recorded by the opposing team in the completed game.
+- `team_errors`: Errors recorded by the starting pitcher's team in the completed game.
+- `opponent_errors`: Errors recorded by the opposing team in the completed game.
+- `team_won`: Boolean flag indicating that the starting pitcher's team won the game.
+- `strikeout_prop_over_4_5`: Boolean outcome flag for whether the starter recorded at least five strikeouts.
+- `strikeout_prop_over_5_5`: Boolean outcome flag for whether the starter recorded at least six strikeouts.
+- `strikeout_prop_over_6_5`: Boolean outcome flag for whether the starter recorded at least seven strikeouts.
+- `strikeout_prop_over_7_5`: Boolean outcome flag for whether the starter recorded at least eight strikeouts.
+- `strikeout_prop_over_8_5`: Boolean outcome flag for whether the starter recorded at least nine strikeouts.
+- `quality_start_flag`: Boolean flag for the common quality-start definition of six or more innings with three or fewer earned runs.
+- `strikeout_rate_game`: Strikeouts divided by batters faced in the completed game.
+- `walk_rate_game`: Walks divided by batters faced in the completed game.
+- `strikeouts_per_inning_game`: Strikeouts divided by innings pitched in the completed game.
+- `starter_prior_starts`: Number of prior completed starts for the same pitcher before this game.
+- `starter_days_since_prev_start`: Days since the pitcher's previous completed start.
+- `starter_rolling_innings_last_3`: Pregame average innings pitched across the pitcher's previous three starts.
+- `starter_rolling_strikeouts_last_3`: Pregame average strikeouts across the pitcher's previous three starts.
+- `starter_rolling_strikeouts_last_5`: Pregame average strikeouts across the pitcher's previous five starts.
+- `starter_rolling_walks_last_5`: Pregame average walks allowed across the pitcher's previous five starts.
+- `starter_rolling_hits_allowed_last_5`: Pregame average hits allowed across the pitcher's previous five starts.
+- `starter_rolling_earned_runs_last_5`: Pregame average earned runs allowed across the pitcher's previous five starts.
+- `starter_rolling_home_runs_allowed_last_5`: Pregame average home runs allowed across the pitcher's previous five starts.
+- `starter_rolling_batters_faced_last_3`: Pregame average batters faced across the pitcher's previous three starts.
+- `starter_rolling_pitches_last_3`: Pregame average pitches thrown across the pitcher's previous three starts.
+- `starter_rolling_k_rate_last_5`: Pregame strikeout rate across the pitcher's previous five starts.
+- `starter_rolling_bb_rate_last_5`: Pregame walk rate across the pitcher's previous five starts.
+- `starter_rolling_qs_rate_last_10`: Pregame share of the pitcher's previous ten starts that qualified as quality starts.
+- `starter_season_to_date_innings_avg`: Pregame season-to-date average innings pitched for the starter.
+- `starter_season_to_date_k_avg`: Pregame season-to-date average strikeouts for the starter.
+- `starter_season_to_date_pitches_avg`: Pregame season-to-date average pitches thrown for the starter.
+- `starter_season_to_date_k_rate`: Pregame season-to-date strikeout rate for the starter.
+- `starter_season_to_date_qs_rate`: Pregame season-to-date quality-start rate for the starter.
+- `starter_prior_starts_vs_opponent`: Number of prior completed starts by the same pitcher against the same opponent before this game.
+- `starter_prior_k_avg_vs_opponent`: Pregame average strikeouts across the pitcher's prior starts against the same opponent.
+- `starter_prior_k_rate_vs_opponent`: Pregame strikeout rate across the pitcher's prior starts against the same opponent.
+- `team_prior_games`: Number of prior completed games for the starting pitcher's team before this game.
+- `team_days_since_prev_game`: Days since the starting pitcher's team played its previous completed game.
+- `team_rolling_runs_scored_last_5`: Pregame average runs scored by the starting pitcher's team across its previous five games.
+- `team_rolling_hits_last_5`: Pregame average hits by the starting pitcher's team across its previous five games.
+- `team_rolling_walks_drawn_last_5`: Pregame average walks drawn by the starting pitcher's team across its previous five games.
+- `team_rolling_strikeouts_drawn_last_5`: Pregame average strikeouts taken by the starting pitcher's team across its previous five games.
+- `team_rolling_plate_appearances_last_5`: Pregame average estimated plate appearances by the starting pitcher's team across its previous five games.
+- `team_rolling_total_bases_last_5`: Pregame average total bases produced by the starting pitcher's team across its previous five games.
+- `team_rolling_win_pct_last_5`: Pregame win percentage for the starting pitcher's team across its previous five games.
+- `team_season_to_date_runs_scored_avg`: Pregame season-to-date average runs scored by the starting pitcher's team.
+- `team_season_to_date_strikeouts_drawn_avg`: Pregame season-to-date average strikeouts taken by the starting pitcher's team.
+- `team_season_to_date_walks_drawn_avg`: Pregame season-to-date average walks drawn by the starting pitcher's team.
+- `team_season_to_date_k_rate`: Pregame season-to-date strikeout rate for the starting pitcher's team offense.
+- `opponent_team_prior_games`: Number of prior completed games for the opposing team before this matchup.
+- `opponent_team_days_since_prev_game`: Days since the opposing team played its previous completed game.
+- `opponent_team_rolling_runs_scored_last_5`: Pregame average runs scored by the opposing team across its previous five games.
+- `opponent_team_rolling_hits_last_5`: Pregame average hits by the opposing team across its previous five games.
+- `opponent_team_rolling_walks_drawn_last_5`: Pregame average walks drawn by the opposing team across its previous five games.
+- `opponent_team_rolling_strikeouts_drawn_last_5`: Pregame average strikeouts taken by the opposing team across its previous five games.
+- `opponent_team_rolling_plate_appearances_last_5`: Pregame average estimated plate appearances by the opposing team across its previous five games.
+- `opponent_team_rolling_total_bases_last_5`: Pregame average total bases produced by the opposing team across its previous five games.
+- `opponent_team_rolling_win_pct_last_5`: Pregame win percentage for the opposing team across its previous five games.
+- `opponent_team_season_to_date_runs_scored_avg`: Pregame season-to-date average runs scored by the opposing team.
+- `opponent_team_season_to_date_strikeouts_drawn_avg`: Pregame season-to-date average strikeouts taken by the opposing team.
+- `opponent_team_season_to_date_walks_drawn_avg`: Pregame season-to-date average walks drawn by the opposing team.
+- `opponent_team_season_to_date_k_rate`: Pregame season-to-date strikeout rate for the opposing team offense.
+- `source_url`: Official MLB boxscore endpoint URL for the game.
+- `source_domain`: Source domain list used to build the row.
+- `last_collected_at`: UTC timestamp when the current dataset build finished.
+
+---
+
+## Dataset Structure
+
+- **Rows:** 840
+- **Columns:** 110
+- **Split:** `data`
+- **File:** `data/data.parquet`
+
+---
+
+## Full Dataset Access
+
+| | Sample (this repo) | Full Dataset |
+|---|---|---|
+| Rows | 840 | 16,808 |
+| Columns | 110 | 110 |
+| Auth required | No | Yes (after purchase) |
+| Price | Free | [See pricing](https://thearticulated.gumroad.com/l/wadakh) |
+
+
+
+## Final CTA
+
+**Get the full dataset:** [https://thearticulated.gumroad.com/l/wadakh](https://thearticulated.gumroad.com/l/wadakh)
+
+---
+
+Karmane. (2025). _MLB Starting Pitcher Strikeout Prop Dataset for Historical K Research (Free Sample)_. Hugging Face. [https://huggingface.co/datasets/Karmane/mlb-starting-pitcher-strikeout-prop-trends-sample](https://huggingface.co/datasets/Karmane/mlb-starting-pitcher-strikeout-prop-trends-sample)

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