Baseball Positions by Number: The Complete 1-9 Guide

Baseball positions by number run from 1 to 9: pitcher (1), catcher (2), first baseman (3), second baseman (4), third baseman (5), shortstop (6), left fielder (7), center fielder (8), and right fielder (9). Every official scorer, coach, and stat sheet uses these nine numbers instead of position names because they’re faster to write and universally understood across every level of the sport, from Little League to the MLB.

The Full List: Baseball Position Numbers 1-9

Here’s the complete reference chart. Memorize this order and scorebook notation stops looking like a secret code.

Number	Position	Abbreviation	General Area
1	Pitcher	P	Pitcher’s mound
2	Catcher	C	Behind home plate
3	First Baseman	1B	Right side of infield
4	Second Baseman	2B	Right-center infield
5	Third Baseman	3B	Left side of infield
6	Shortstop	SS	Left-center infield
7	Left Fielder	LF	Left outfield
8	Center Fielder	CF	Deep center outfield
9	Right Fielder	RF	Right outfield

Notice that the numbers don’t follow a strict left-to-right or clockwise path around the field. They follow a historical scorekeeping convention that groups the battery first, then the infield, then the outfield.

Why the Numbers Go in This Order

The 1-9 system isn’t random, but it also isn’t purely geographic. It breaks into three logical groups:

• The battery (1-2): Pitcher and catcher get the first two numbers because they’re involved in literally every pitch. Together they’re called the “battery.”
• The infield (3-6): First base (3), second base (4), third base (5), and shortstop (6) follow. This is the part that trips people up — the shortstop plays between second and third but is numbered last in the infield group. That’s simply the order 19th-century scorers settled on, and it stuck.
• The outfield (7-9): Left field (7), center field (8), and right field (9) close out the numbering, moving from the third-base side to the first-base side.

This system was standardized in the early days of organized baseball scorekeeping and hasn’t changed since, which is part of why it still works as a universal language between old box scores and today’s stat sheets.

How Scorekeepers Use Position Numbers

Scorekeepers write plays as number sequences instead of spelling out names. A few common examples:

• 6-3: Shortstop fields a ground ball and throws to first base for the out.
• 4-3: Second baseman fields the ball and throws to first base.
• 6-4-3: A classic double play — shortstop to second baseman (forcing the runner) to first baseman (completing the double play).
• 5-4-3: Third baseman starts a double play, throwing to second, then relayed to first.
• K: Strikeout (not a position number, but appears alongside them in scorebooks).

If you’re trying to visualize how a double play actually develops on the field, our double play in baseball explainer breaks down the full mechanics play by play.

Position Numbers vs. Jersey Numbers

A common point of confusion for new fans: position numbers (1-9) have nothing to do with the number on a player’s jersey. A shortstop is always “6” in scorekeeping shorthand no matter whether his uniform says #2 or #24. Position numbers exist purely for scorekeeping notation; jersey numbers are a separate identifier chosen by the player or team.

Is There a Position 10? The Designated Hitter Question

The designated hitter (DH) bats in place of the pitcher in the American League and, since 2022, throughout MLB, but doesn’t play defense. Because the 1-9 system only numbers defensive positions, the DH has no official number. Some informal scoresheets and youth leagues use “10” as shorthand for the DH or for an extra short fielder used in T-ball and coach-pitch formats, but neither is part of the sport’s official numbering standard.

Position Numbers Across Levels of Play

The 1-9 numbering system is consistent from Little League through the majors — a 6-4-3 double play means the same thing whether it happens in a high school game or a World Series. The only variations show up in entry-level youth formats (like T-ball), where a coach may station an extra “short fielder” in shallow outfield for beginners still learning to track fly balls. That extra defender is a teaching tool, not a change to the standard nine positions used everywhere else in the sport.

Quick Reference: Common Scorebook Plays

Notation	What Happened
1-3	Pitcher fields a comebacker, throws to first
2-6	Catcher throws out a runner stealing second (shortstop covers)
8	Fly out to center field
4-6-3	Double play started by the second baseman
9-3	Right fielder throws behind a runner to first for the out

For the broader vocabulary that surrounds these plays — force outs, sacrifice flies, full counts, and more — the baseball terminology glossary collects every term new fans need in one place, and our guide to the strike zone covers the rule that governs most of what a pitcher (1) and catcher (2) do on every pitch.

Why This System Still Matters

Even with modern tracking data and advanced analytics, MLB teams, official scorers, and broadcasters still rely on the same 1-9 numbering that’s been standard for over a century. It’s compact, unambiguous, and works the same way in every ballpark and every country that plays the game. Learning it is one of the fastest ways to actually read a scorebook or box score rather than just watch the final score.

Want the bigger picture of how a game is structured around these nine defenders? Start with how many innings are in a baseball game, or head back to the baseball hub for the full library of MLB rules, terms, and explainers.