Ground rules are rules applying to the field, objects on and near it, and special situations relating to them, in the game of baseball. Major League Baseball has defined a set of "universal ground rules" that apply to all MLB ballparks; [1] individual ballparks have the latitude to set ground rules above and beyond the universal ground rules, as long as they do not directly contradict each other. Additionally, a set of universal ground rules exists for the six MLB stadiums with retractable roofs, with the individual ballparks able to set additional rules.
Unlike the well-defined playing field of most other sports, the playing area of a baseball field extends to an outfield fence in fair territory and the stadium seating in foul territory. The unique design of each ballpark, including fences, dugouts, bullpens, railings, stadium domes, photographer's wells and TV camera booths, requires that rules be defined to handle situations in which these objects may interact or interfere with the ball in play or with the players, and adaptable by ballpark within the universal rules.
The term is familiar to most fans through the ground rule double, a batted ball that bounces fair, then over the outfield fence in fair or foul territory for a two-base hit.
Individual ballpark ground rules vary greatly from ballpark to ballpark. For the 2017 season, Citi Field, Kauffman Stadium, Target Field, Yankee Stadium, and Rate Field are the only MLB ballparks that do not have individual ground rules above the universal set. [1]
Examples of ground rules that have been or are still in major league ballparks include:[ citation needed ]
These ground rules only apply at ballparks featuring retractable roofs. As of the 2021 season, these are: Rogers Centre, Chase Field, T-Mobile Park, American Family Field, Daikin Park, and LoanDepot Park. Rules governing batted balls striking the roof are defined in each individual ballpark's ground rules.
All ballpark-specific retractable roof ground rules concern opening of the roof after a game has started.
If the game starts with the roof closed:
If the game starts with the roof open and it is closed during the game:
In baseball, a home run, homerun or homer is scored when the ball is hit in such a way that the batter is able to circle the bases and reach home plate safely in one play without any errors being committed by the defensive team. A home run is usually achieved by hitting the ball over the outfield fence between the foul poles without the ball touching the field.
Daikin Park is a retractable roof stadium in Houston, Texas, United States. It opened in 2000 and is the home ballpark of the Houston Astros of Major League Baseball. The ballpark has a seating capacity of 41,168, which includes 5,197 club seats and 63 luxury suites with a natural grass playing field. It was built as a replacement for the Astrodome, the first domed sports stadium ever built, which opened in 1965.
In baseball, the dugout is a team's bench and is located in foul territory between home plate and either first or third base. There are two dugouts, one for the home team and one for the visiting team. In general, the dugout is occupied by all players not prescribed to be on the field at that particular time, as well as coaches and other personnel authorized by the league. The players' equipment is usually stored in the dugout.
Dead ball is a term in many ball sports in which the ball is deemed temporarily not playable, and no movement may be made with it. Depending on the sport, this event may be quite routine, or more uncommon.
In baseball, a foul ball is a batted ball that:
Throughout baseball's history, the rules have frequently changed as the game continues to evolve. A few typical rules most professional leagues have in common are that four balls are a base on balls, three strikes are a strikeout, and three outs end a half-inning.
A baseball field, also called a ball field or baseball diamond, is the field upon which the game of baseball is played. The term can also be used as a metonym for a baseball park. The term sandlot is sometimes used, although this usually refers to less organized venues for activities like sandlot ball.
In baseball, interference occurs in situations in which a person illegally changes the course of play from what is expected. Interference might be committed by players on the offense, players not currently in the game, catchers, umpires, or spectators. Each type of interference is covered differently by the rules.
In rare cases, baseball games are forfeited, usually when a team is no longer able to play. Although not uncommon in baseball's early days, forfeits are now rare. There have been only five forfeits in Major League Baseball (MLB) since 1954; the last forfeit was in 1995, and prior to that, 1979. Since 1914, there has only been one incident where a team deliberately made a decision to forfeit a game, by the 1977 Baltimore Orioles.
In baseball, the rules state that a batted ball is considered in flight when it has not yet touched any object other than a fielder or his equipment. Such a ball can be caught by a fielder to put the batter out.
A ground rule double is a baseball rule that awards two bases from the time of pitch to all baserunners including the batter-runner, as a result of the ball leaving play after being hit fairly and leaving the field under a condition of the ground rules in effect at the field where the game is being played. An automatic double is the term used to refer to a fairly hit ball leaving the field in circumstances that do not merit a home run, such as when the ball's first bounce was within the field. The automatic double is commonly called a ground rule double.
A ballpark, or baseball park, is a type of sports venue where baseball is played. The playing field is divided into two field sections called the infield and the outfield. The infield is an area whose dimensions are rigidly defined in part based on the placement of bases, and the outfield is where dimensions can vary widely from ballpark to ballpark. A larger ballpark may also be called a baseball stadium because it shares characteristics of other stadiums.
Jerry Blake Layne is an American umpire in Major League Baseball who has worked in the National League between 1989 and 1999, and throughout both major leagues since 2000. He wore uniform number 24 in the NL, but when MLB merged the AL and NL umpiring staffs in 2000, Layne was forced to switch to number 26, as AL umpire Al Clark, who also wore 24, had more seniority. When Clark was fired midway through the 2001 season by MLB, Layne reclaimed number 24 and has worn it ever since. With Joe West's retirement in 2022, Layne became MLB's most senior active umpire.
In baseball, a fourth out is a legal out made by the defense after three outs in a half-inning have already been made. According to the rules, the third out does not cause the ball to become dead; if the fielders make a subsequent out that prevents a run from scoring, this out will supersede the apparent third out, thus becoming the recorded third out. The defense successfully makes an appeal while the ball is still live, and the umpire calls a temporary fourth out that (usually) replaces the existing third out. For statistical purposes, the apparent third out is "undone" and the fourth out's result is recorded instead. With the advent of video replay appeals, a new rationale for making extra out(s) has emerged: insurance against a prior out being undone on appeal. These fourth-out situations are not the same as four strikeouts in an inning.
Gregory Allan Gibson is an American former Major League Baseball umpire who worked in the National League from 1997 to 1999 and throughout both major leagues from 2000 to 2022. He was promoted to crew chief for the 2022 season.
The Melbourne Ballpark is a baseball park in Altona, Victoria. It was opened in January 1990, at a cost of A$3.9m, A$2m was contributed by the State Government of Victoria and the remaining A$1.8m contributed by the Australian Federal Government and was constructed by CK Designwork Architects.
Philip Cuzzi is an American professional baseball umpire in Major League Baseball (MLB). He worked as a reserve umpire in the National League (NL) from 1991 to 1993 and returned to the NL in 1999. Since 2000, he has worked in both major leagues. Cuzzi wore number 99 when his career started; he now wears number 10.
In sports, out of bounds refers to being outside the playing boundaries of the field. The legality of going out of bounds, and the ease of prevention, vary by sport. Sports that use this term include American football, Canadian football, field lacrosse, basketball, rugby union, rugby league, and association football.
Major League Baseball (MLB) uses instant replay review to allow league officials to review certain types of plays in order to determine the accuracy of the initial call of the umpires on the field. Reviews may be initiated either by a team's manager with limitations or by the umpires themselves. All instant replay reviews are examined by umpires at the Replay Command Center in New York City, who have the final decision as to whether to uphold or overturn the initial call.
The Pine Tar Incident was a controversial incident in 1983 during an American League baseball game played between the Kansas City Royals and New York Yankees at Yankee Stadium in New York City on Sunday, July 24, 1983.