Understanding Batting Statistics
From batting average to OPS, learn what the core hitting numbers actually measure.
Batting statistics are the tools fans and teams use to measure how well a hitter performs. While dozens of numbers exist, a handful of core statistics describe most of what matters about an offensive player. Understanding these basics makes it easy to compare hitters and appreciate what makes an at-bat valuable.
The Traditional Trio
Batting average, written as AVG, is the oldest and most familiar stat. It divides hits by official at-bats, producing a figure like .300, which means three hits for every ten at-bats. Because walks and sacrifices do not count as at-bats, they do not affect average at all. Batting average is easy to grasp but tells only part of the story, since it treats a home run and a single as equal and ignores a hitter's ability to draw walks.
On-base percentage, or OBP, fills one of those gaps by measuring how often a batter reaches base in any legitimate way: hits, walks, and hit-by-pitches. It divides times on base by plate appearances. A player with a modest average but a sharp eye can post a strong OBP by drawing walks, and because avoiding outs is the essence of offense, OBP is often considered more telling than average.
Slugging percentage, or SLG, addresses power. It divides total bases by at-bats, counting a single as one base, a double as two, a triple as three, and a home run as four. A hitter who smacks extra-base hits will have a high slugging percentage even with a moderate average, because each hit is worth more bases.
Combining the Numbers
Because on-base skill and power each capture different strengths, analysts combine them into OPS, which simply adds OBP and SLG together. OPS gives a single number that rewards both reaching base and hitting for power, making it a convenient shorthand for overall offensive value. A player with an OPS near .900 is typically an excellent hitter, while a figure around .700 is roughly average.
Other common counting stats round out the picture. Home runs and runs batted in, or RBI, measure run production, though RBI depends heavily on having teammates on base to drive home. Runs scored reflect a player's ability to reach base and come around to the plate. Stolen bases and strikeouts describe style and risk on the bases and at the plate.
The key insight is that no single statistic captures everything. Batting average rewards contact, on-base percentage rewards discipline, and slugging rewards power. A complete view of a hitter considers all three, plus the context of how often he comes to bat in important situations. When you watch a game with these numbers in mind, a walk stops looking like a wasted at-bat and starts looking like a quiet success, and a double becomes clearly more valuable than a single. That deeper appreciation is exactly what batting statistics are designed to provide.