How to Read a Baseball Box Score: A Line-by-Line Guide

A baseball box score is read top to bottom in three stacked tables: the line score (runs per inning, then R/H/E totals), the batting section (each player’s AB, R, H, RBI, BB, SO, and AVG), and the pitching section (each pitcher’s IP, H, R, ER, BB, SO, and ERA). Once you know what each column abbreviates, a box score tells the entire story of a game in about 30 seconds, no video required.

The Line Score: Runs By Inning

The line score sits at the very top of the box score and looks like a simple grid. The visiting team’s row is listed first, the home team’s row second, and each column represents one inning.

Read the line score left to right to see exactly when a team scored. A three-run third inning looks very different from three separate solo runs spread across nine innings. After the nine (or more, in extra innings) inning columns, three summary columns close out the line:

• R - total runs scored, which is the final score of the game
• H - total hits by that team, across every batter
• E - total fielding errors committed by that team

If a game goes to extra innings, the line score simply grows extra columns; if the home team wins in the bottom of the ninth, its final at-bat column can show an “X” instead of a number, since it didn’t need to bat further. For the full rules on how many innings a game is scheduled for and when it can end early, see our guide to how many innings are in a baseball game.

The Batting Line: What Each Column Means

Below the line score, every player who batted is listed by name with their fielding position (see baseball positions by number if the position numbers next to a name look unfamiliar). Each row is a batting line, and the columns are always in the same order:

Column	Meaning
AB	At-bats - plate appearances that count toward batting average
R	Runs scored by that player
H	Hits recorded by that player
RBI	Runs batted in - runs that scored because of that player’s action
BB	Bases on balls (walks) drawn
SO	Strikeouts
AVG	Batting average for the season, updated after this game

AB excludes walks, hit-by-pitches, sacrifice bunts, and sacrifice flies, because none of those are official at-bats even though they’re all plate appearances. That’s why a player can go 0-for-3 with two walks in a five-plate-appearance game. Extra-base hits (2B for doubles, 3B for triples, HR for home runs) are usually noted separately below the main table, along with stolen bases (SB) and caught stealing (CS).

The Pitching Line: What Each Column Means

The pitching section works the same way, listing every pitcher who appeared for both teams in the order they entered the game:

Column	Meaning
IP	Innings pitched (the decimal is outs, not tenths - 5.1 = five innings, one out)
H	Hits allowed
R	Total runs allowed
ER	Earned runs - runs that scored without help from a fielding error
BB	Walks issued
SO	Strikeouts recorded
ERA	Earned run average, recalculated after the game

The pitcher of record is marked with a decision letter next to their name: W for the win, L for the loss, SV for a save, or HLD for a hold. Only earned runs count against ERA, which is calculated as (Earned Runs divided by Innings Pitched) times 9. For the full formula and why the “earned” distinction exists, see our explainer on ERA in baseball.

Worked Example: A Sample Batting and Pitching Line

Here’s how a single game’s numbers might actually look once you strip away the visual formatting:

Section	Player	Line	What it tells you
Batting	3B - J. Ramirez	4 AB, 1 R, 2 H, 3 RBI, 0 BB, 1 SO	Went 2-for-4 with a big three-RBI game and scored once
Batting	SS - C. Diaz	3 AB, 0 R, 0 H, 0 RBI, 1 BB, 2 SO	Hitless, but reached once on a walk
Pitching	Starter - M. Torres (W)	6.0 IP, 5 H, 2 R, 2 ER, 1 BB, 7 SO	Earned the win over six full innings, two runs both earned
Pitching	Closer - A. Reyes (SV)	1.0 IP, 1 H, 0 R, 0 ER, 0 BB, 2 SO	Clean save inning, no runs allowed

Reading down these four lines, you can reconstruct the shape of the game without watching a single pitch: Ramirez drove in most of the offense, Torres pitched deep into the game and got the win, and Reyes closed it out cleanly.

Common Abbreviations Decoded

Box scores lean on shorthand everywhere. Beyond the AB/R/H/RBI/BB/SO/ERA columns above, you’ll frequently see these on the same page:

• 2B, 3B, HR - doubles, triples, home runs
• SB, CS - stolen bases, caught stealing
• HBP - hit by pitch
• SF, SAC - sacrifice fly, sacrifice bunt
• DP - double play
• WP - wild pitch
• K - strikeout (traditional scorer’s symbol; box score tables usually print SO instead)

If you run into a term that isn’t listed here, our full baseball terminology glossary covers the rest of the sport’s vocabulary in one place.

Common Mistakes When Reading a Box Score

A few misreads trip up new readers again and again:

• Treating AB as total plate appearances. Walks and sacrifices are real plate appearances but not at-bats, so AB will often be lower than you’d expect.
• Misreading the IP decimal. 5.2 means five innings and two outs, not 5.2 innings as a fraction, and a pitcher can never show a .3 since three outs simply becomes the next full inning.
• Assuming R and ER always match. A run that scores because of an error counts toward R but not ER, which is why a pitcher’s raw runs allowed and their ERA-affecting earned runs can diverge.
• Expecting RBI to sum to the final score. Runs scored via wild pitches, balks, passed balls, or double-play groundouts don’t award an RBI to anyone, so team RBI totals can land below total runs scored.

Once these column meanings click, a box score becomes the fastest way to catch up on any MLB game, faster than a highlight reel and more precise than a recap. For a broader look at how individual stats like OPS combine on-base skill and power into one number, see what OPS means in baseball, and browse more explainers on our Baseball & MLB hub.