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Whitened rubber
- It is a five-sided slab made of whitened rubber. It is 17 inches across the front, 8.5 inches down each side, and the two rear edges are 12 inches each, set at an angle to make a point.
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The front edge of the pitcher's plate or rubber is 18 inches (46 cm) behind the center of the mound, making the front edge's midpoint 60 feet 6 inches from the rear point of home plate. Six inches (15 cm) in front of the pitcher's rubber the mound begins to slope downward.
The pitching plate (rubber) is measured from the front edge and center of the pitching plate (rubber) to the APEX of home plate. The front edge of home plate is 17 inches in front of the apex. REMEMBER, THE CENTER OF THE MOUND IS 18" IN FRONT OF THE RUBBER ON A 90' FIELD.
- Specifications
- First Base
- Second Base
- Third Base
- Home Plate
- Foul Poles
- Pitcher's Mound
- Baseline
- Grass Line
- History
The starting point for much of the action on the field is home plate, which is an irregular white rubber pentagon 17 inches by 8 1/2 by 12 by 12 by 8 1/2 inches (defined in the rule book as a one-foot square with "two of the corners filled in"). Next to each of the two parallel 8 1/2 inch sides is a batter's box. The point of home plate where the t...
First base is the first of four bases that must be touched by a player on the batting team in order to score a run. In contrast to second and third base, it is permitted for a runner to overrun first base without being in jeopardy of being put out after contact is made with the base, provided the runner makes no move to attempt to advance another b...
Second base, or 2B, is the second of four stations on a baseball diamond which must be touched in succession by a base runner in order to score a run for that player's team. Second base is typically defended by the second baseman and the shortstop. Second base is also known as the keystone sack. A runner on second base is said to be in "scoring pos...
Third base is the third of four bases a baserunner must touch in a counterclockwise succession in order to score a run. Many batted balls that result in the batter being put out (such as a sacrifice fly) may nevertheless allow a runner to reach home plate and score a run from third base, provided that the third and final out is not recorded before ...
In baseball and related games, home plateis the final base that a player must touch to score. Unlike the other bases, home plate is a pentagon and is hard, usually a slightly flexible hard plastic with beveled edges that rises only slightly above ground level. 50 to 100 feet (15 to 30 meters) behind home plate is the backstop, which is a wall/fence...
The purpose of the foul poles is to help the umpire judge whether a fly ball hit above the fence line is foul (out of play) or fair (a home run). The poles are a vertical extension of the foul lines. Both objects are used to determine whether a ball is foul or fair, but the names are misleading, because both the lines and the poles are actually wit...
In the middle of the square is a low artificial hill called the pitcher's mound. On the mound there is a white rubber slab, called the pitcher's plate or commonly the rubber, six inches (15 cm) front-to-back and two feet (61 cm) across, the front of which is exactly sixty feet six inches (18.4 m) from the rear point of home plate. This peculiar dis...
A baseline is the direct route—a straight line— between two adjacent bases, though it is not drawn in chalk or paint on the field (though foul lines are drawn). The basepath is the region within three feet (0.9 meters) of the baseline. Baserunners are not required to run in this objective basepath, however; a baserunner may run wherever he wants wh...
The grass line, where the dirt of the infield ends and the grass of the outfield begins, has no special significance to the rules of the game, but it can influence the outcome of a game. Dirt running paths between the bases (and, at one time, between the pitcher and the catcher) have existed since the beginning of the game, although they were not m...
The basic layout of the diamond has been little changed since the original Knickerbocker Rules of the 1840s. The distance between bases was already established as 90 feet, which it remains to this day. Through trial and error, 90 feet had been settled upon as the optimal distance. 100 feet would have given too much advantage to the defense, and 80 ...
Measure and mark the proper distance of the pitching plate (rubber) from home plate. The pitching plate (rubber) is measured from the front edge and center of the pitching plate (rubber) to the APEX of home plate. The front edge of home plate is 17 inches in front of the apex.
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The guide outlines how the dimensions change from the MLB (Major League Baseball) to Little League Baseball, high school baseball, college baseball, and the different PONY League age groups, including baseball field diagrams for each.
The bases on a Major League Baseball Field are spaced 90’ (27.4 m) apart measured from the apex of home plate to the farthest corner of 1st and 3rd bases, and from the same farthest corner of 1st and 3rd to the center of 2nd base. The pitching distance from the front of the pitching rubber to the apex of home plate is set at 60’ 6” (18.44 m).
The front edge of home plate is the point where the balls and strikes are determined by the umpire. Home plate also serves as the starting point for baserunners when trying to score a run. It is the ultimate goal for the offensive team, and a player must touch the plate to score a run.
