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MLB Analyzer

Author: Patrick Mejia
Date: June 13, 2025

A Python-based data collection tool that scrapes official MLB hitting and pitching statistics from the MLB Stats API, formats them using Polars, and exports the results into CSV files organized by year or combined across seasons.

Features

  • Collects season-level MLB stats for both hitters and pitchers
  • Supports multiple years in one run
  • Adds a Year column to each record
  • Outputs to a single combined CSV file per stat type
  • Cleanly handles API errors and empty responses

Requirements

  • Python 3.9+
  • Polars
  • requests library

Install dependencies:

pip install polars requests

mlb_stats_project/
├── hitting/
│   ├── 2020.csv
│   ├── 2021.csv
│   ├── 2022.csv
│   ├── 2023.csv
│   ├── 2024.csv
│   └── full_mlb_hitting_data.csv
│
├── pitching/
│   ├── 2020.csv
│   ├── 2021.csv
│   ├── 2022.csv
│   ├── 2023.csv
│   ├── 2024.csv
│   └── full_mlb_pitching_data.csv
│
├── README.md