Baseball Statistics & MLB History
An authoritative archive of 150+ years of Major League Baseball history. Crystalline data clarity, rigorous methodology, and the proprietary Player Impact Value (PIV) metric.
Baseball Data Hub is a free baseball statistics encyclopedia covering 26,106 major league players from 1871 to 2026. It carries career and season-by-season batting, pitching and fielding lines for every player, 222,341 game records from 1898 to 2025, all 203 franchises, 263 ballparks and every season since 1871. Statistics run through the 2026 season and the data was last refreshed on October 12, 2026. Everything is free to read, with no account and no paywall.
Data updated
October 12
CAREER PIV LEADERS
Full Leaderboard ↗SINGLE-SEASON PIV LEADERS
Full List ↗EXPLORE THE ARCHIVE
THE PLAYERS
Detailed biographical data, career statistics, and PIV tracking for every player in MLB history. Over 26,106 profiles.
THE SEASONS
Standings, league leaders, postseason results, and comprehensive summaries for every season since 1871.
THE FRANCHISES
Franchise histories, year-by-year records, all-time rosters, and championship ledgers for 120 clubs.
What this site covers and how to find it
The counters at the top of the page summarize the archive: 26,106 player profiles, 156 seasons and 222,341 logged games. The two PIV tables list the five best careers and the five best single seasons by Baseball Data Hub's era-adjusted offense measure, each linking to the full leaderboard. Today in Baseball History lists players born or remembered on today's date, and the champions list gives the most recent World Series winners.
The Players section leads to every profile; Seasons to standings, leaders and postseason results for every year; Franchises to year-by-year records for each club. Reference pages cover the Hall of Fame, awards, 263 ballparks, managers and the Negro Leagues. The Explore menu groups the browsing tools: head-to-head comparisons, leaderboards, leaders by position, records, decades, countries, colleges and the statistics glossary.
The data was last refreshed on October 12, 2026; current-season numbers update nightly, and the About and Data Sources pages explain where each dataset comes from.
About Baseball Data Hub: Frequently Asked Questions
- What is Baseball Data Hub?
- A free baseball statistics encyclopedia with career, season and game-level records for 26,106 major league players from 1871 to 2026.
- Where does the data come from?
- The Lahman Baseball Database via the Chadwick Baseball Bureau, Retrosheet game accounts, the Chadwick Bureau identity register, and the MLB Stats API for the season in progress. Full provenance is published at /about/data-sources.
- How often is it updated?
- The current season refreshes daily. The data on the site was last refreshed on October 12, 2026.
- Does it include the Negro Leagues?
- Yes. MLB recognized seven Negro Leagues (1920–1948) as major leagues in 2020. Their statistics appear on player pages and on dedicated leaderboards, with an opt-in combined board alongside the default AL/NL boards.
- What is PIV?
- Player Impact Value, Baseball Data Hub's own metric. It measures a player's production against the league average of his own era and adjusts for how often he actually played; the full formula is published at /about/piv-methodology.
- Is Baseball Data Hub free?
- Yes. Every page is free to read, with no account and no paywall.