⚾Records

Baseball's record book is the deepest and best-documented in sport, a ledger stretching back to the nineteenth century in which nearly every achievement can be compared across generations. Some marks reflect a single moment of concentration; others reward two decades of unbroken durability. A handful are considered untouchable, protected by permanent changes in how the game is played, while others still fall as training, technology, and roster rules evolve.

The records below trace the outer limits of the possible, and several were reframed in 2024 when MLB folded Negro Leagues statistics into its official history, moving Josh Gibson to the top of the career batting-average leaderboard. Many of the counting records endure precisely because the modern game — with its pitch counts, bullpen specialization, and shorter careers — no longer produces the conditions that made them. Each stands as a benchmark against which every new star is measured.