How to Read a Baseball Box Score
R, H, E — three columns that have summarized baseball for 150 years, and what to look at next.
The box score is baseball’s oldest data format — newspapers ran recognizable ones in the 1860s. The modern version compresses a three-hour game into a line you can read in three seconds: R H E — runs, hits, errors, one row per team.
The line score
Runs are the score; hits tell you how the runs happened. A team that wins 5–4 while being out-hit 10–4 got efficient — or lucky: a couple of walks, an error, one big swing. Errors are misplays the fielding team should have made; an unearned run that follows often decides one-run games. On [Diamond’s match pages](/v/diamond) you’ll find exactly this line for every game.
What the abbreviations mean
- AB / H — at-bats and hits, the batter’s day in two numbers. “2-for-4” means 2 hits in 4 at-bats.
- HR / RBI — home runs and runs batted in: the power and the payoff.
- BB / K — walks drawn and strikeouts. Plate discipline lives here.
- IP / ER — for pitchers: innings pitched and earned runs. A “quality start” is 6+ innings, 3 or fewer earned.
One number worth knowing
ERA — earned run average — is earned runs per nine innings, and it’s how pitchers are compared across a season. Under 3.00 is excellent; over 5.00 usually means trouble. Its batting counterpart is AVG (hits ÷ at-bats), where .300 has meant “very good” for a century.
Quick answers
What do R, H and E mean in a box score?
Runs, hits and errors. Runs are the score, hits tell you how the runs happened, and errors are misplays the scorer judged should have been made.
What does 2-for-4 mean in baseball?
Two hits in four at-bats — the AB and H columns, which summarise a batter’s day in two numbers.
What is a quality start?
Six or more innings pitched with three or fewer earned runs.
What is a good ERA?
Earned run average is earned runs allowed per nine innings. Under 3.00 is excellent; over 5.00 usually signals trouble.