Baseball Positions by Number

Each of the nine positions carries distinct responsibilities. Understanding what each player does on the field helps coaches assign positions based on a player's strengths and helps fans follow the action.

Battery: Pitcher (1) and Catcher (2)

The pitcher and catcher form the "battery," the only two players who are involved in every single pitch. The pitcher (1) stands on the raised mound 60 feet, 6 inches from home plate (46 feet in Little League) and delivers pitches with varying speed, spin, and location. The catcher (2) crouches behind the plate, calls pitches using signs, frames borderline strikes, blocks balls in the dirt, and throws to bases when runners try to steal.

Infield: First Base (3), Second Base (4), Third Base (5), Shortstop (6)

The four infielders handle ground balls, line drives, and pop-ups hit within the dirt portion of the diamond. First base (3) receives the majority of thrown putouts from other infielders. Second base (4) and shortstop (6) cover the middle of the diamond and work together on double plays. Third base (5) is sometimes called the "hot corner" because the ball arrives fast off a right-handed batter's pull swing.

Outfield: Left Field (7), Center Field (8), Right Field (9)

Outfielders cover the grass beyond the infield dirt. Center field (8) is the captain of the outfield with priority on any fly ball they can reach. Left field (7) sees more balls from right-handed batters. Right field (9) needs the strongest throwing arm because the longest throw an outfielder makes is from right field to third base.

Youth baseball adds wrinkles to the standard nine-position setup. T-ball and coach-pitch leagues often place a 10th fielder (sometimes called a "short fielder" or "rover") in shallow center field to handle the shorter batted balls that young hitters produce. As players move into kid-pitch leagues, the roster drops to the standard nine positions.

Position Rotation at the Youth Level

Most youth baseball organizations recommend rotating players through multiple positions during the season. A kid who only plays right field never develops the footwork for shortstop or the receiving skills for catcher. Rotation builds a more complete athlete and keeps players engaged. A structured athlete development plan helps coaches track which positions each player has tried and where they are improving. Many rec leagues require that every player plays at least two different positions per game, and some mandate that no player sits the bench for more than one consecutive inning.

Tracking who played where across a full season is one of the hardest parts of youth coaching. Paper lineup cards work for a single game, but over 20 games the data gets lost. For a printable card you can use game by game, see our baseball lineup card templates. If you need an inning-by-inning view of who played where, our baseball position chart includes a fillable tracker with 12 player rows and 6 inning columns.

Technically, yes. The designated hitter (DH) is a 10th player who bats in place of the pitcher but does not play defense. The batter is not a defensive position: "batting" describes an offensive role, while the nine numbered positions (1 through 9) are all defensive. MLB adopted the universal DH in 2022, meaning both American League and National League teams now use it. College baseball (NCAA), high school baseball (NFHS), and most youth leagues also allow the DH, though some local house leagues still opt out.

The DH Before 2022: A National League Holdout

The American League adopted the DH in 1973 to inject more offense into the game. The National League resisted for almost five decades because traditionalists valued the strategic depth of forcing pitchers to bat (the double switch, the sacrifice bunt, the pinch-hit decision). The 2020 shortened season used a universal DH as a temporary measure, and the rule became permanent in 2022. The change ended one of the most distinctive differences between the two leagues.

The DH vs. the Extra Hitter (EH) in Recreation Leagues

Some recreation and travel leagues use an "extra hitter" (EH) instead of, or in addition to, the DH. The EH bats in the lineup but never plays defense, similar to the DH. The difference: the EH is added to the lineup card as a 10th batter without replacing the pitcher's at-bat, which means the pitcher still hits. Other leagues use a "continuous batting order" where every roster player hits regardless of who is on the field. Check the local rulebook before each season because the variations matter for filling out a lineup card.

How Many Players on a Baseball Team on the Field?

Nine players take the field on defense at any time. A full MLB roster holds 26 players (expanded to 28 in September), but only nine are on the diamond during play. Youth rosters vary: Little League typically caps at 12 to 15 players (up to 20 in some divisions), while travel ball rosters can run to 18 or more. The extra players rotate in as substitutes or sit in the dugout waiting for their at-bat in continuous batting order leagues.

"Difficulty" means different things depending on whether you measure physical demands, mental complexity, or how much the position affects the game's outcome. The ranking below weighs all three factors together. Coaches at every level generally agree on the top three (catcher, pitcher, shortstop), while the bottom half is more debatable.

At the youth level, these rankings shift. First base is often where coaches put their least experienced fielder, but at higher levels it requires strong footwork, good hands for scooping low throws, and the ability to hold runners. A player who "outgrows" right field may become the team's best first baseman two years later. Position difficulty is a snapshot, not a permanent label.

Knowing the nine positions and their roles is the foundation of coaching communication. Lineup cards, scorecards, practice plans, and tryout evaluation forms all use these roles as shorthand. The challenge grows when you manage a full roster across a season: tracking who played which position, how many innings at each spot, and whether every player got fair rotation.

Platforms like Striveon let you record player positions alongside evaluation scores from tryouts and practices, so you can see which athletes are developing at each position over time instead of relying on memory.

What Number Is Retired in All of Baseball?

Number 42 is the only jersey number retired across all of MLB(opens in new tab). It belonged to Jackie Robinson, who broke baseball's color barrier on April 15, 1947, with the Brooklyn Dodgers. MLB retired the number league-wide in 1997, on the 50th anniversary of Robinson's debut. The only exception after that was Mariano Rivera, who was already wearing 42 when the retirement took effect and continued to wear it until his final season in 2013. Every April 15 (Jackie Robinson Day), all players, coaches, and umpires wear number 42 in tribute. Note that jersey numbers and position numbers are two separate systems: Robinson's 42 is a uniform number, while position numbers 1 through 9 refer to defensive spots on the field.