Sabermetrics

The empirical analysis of baseball through statistics — the analytical framework behind modern player evaluation.

Sabermetrics is the empirical analysis of baseball, named after the Society for American Baseball Research (SABR). Popularized by Bill James in the 1970s–80s and famously applied by the Oakland A's (as chronicled in Moneyball), sabermetrics uses statistical analysis to evaluate players and strategy beyond traditional stats like batting average and wins.

Key sabermetric innovations include WAR, OPS+, wRC+, FIP, and defensive metrics like UZR and OAA. These stats aim to isolate individual player contributions from team context, luck, and ballpark effects.

Modern Hall of Fame voting has been heavily influenced by sabermetrics. Players like Edgar Martinez and Larry Walker, who were undervalued by traditional metrics but excelled in advanced stats, eventually gained induction as voters adopted sabermetric frameworks.

AllFame's HOF Score algorithm is built entirely on sabermetric principles — using WAR as the primary value metric, milestone analysis for voter psychology, and peak performance measurement for dominance.