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In sports, a hash mark or hash line is a short line/bar marking that is painted perpendicular to the sidelines or side barricades, used to help referees and players recognize on-field locations and visually measure distances. Hash marks serve the same function as the graduated markings on measuring tools such as rulers.
In ice hockey, the hash marks are two pairs of parallel lines on either side of the face-off circles in both ends of the rink. Players must remain on their team's side of the hash mark nearest their own goal during a face-off until the puck hits the ice.
In American football and Canadian football, the hash marks are two rows of lines near the middle of the field that are parallel to the side lines. These small lines (4 in [10 cm] wide by 2 ft [61 cm] long) are used to mark the 1-yard sections between each of the 5-yard lines, which go from sideline to sideline. All plays start with the ball on or between the hash marks. That is, if the ball is downed in between a hash mark and the nearest sideline, it must be placed on that hash mark for the next play.
Prior to the adoption of hash marks (which were first utilized at the first NFL playoff game in 1932), all plays began where the ball was declared dead, including extra point attempts.
The hashmarks in that indoor 1932 playoff game were originally 30 feet (9.1 m) from the sideline, and that width was adopted by the NFL for the 1933 season. It was increased to 45 feet (14 m) from the sideline (70 ft [21 m] apart) in 1935, 60 feet (18 m) from the sideline (40 ft [12 m] apart) in 1945, and to the current 70 feet 9 inches (21.56 m) from the sideline (18+1⁄2 ft [5.6 m] apart) in 1972. [1]
In most forms of professional football in the U.S., including the National Football League and most forms of indoor football, the hash marks are in line with the goal posts, both being 18 feet 6 inches apart in the NFL and between 9 and 10 feet (2.7 and 3.0 m) in indoor football. High school football, college football and Canadian football have hash marks significantly wider than the goal posts. The college football standard, which was the previous standard in the NFL (1945–1971), is 40 feet apart, (20 yards from the sidelines) [2] introduced in 1993. [3] [4] Previously, the college width was the same as the high school standard (with the exception of Texas, which currently uses the current college width), at one-third of the width of the field (53+1⁄3 feet [16.3 m]).
The Canadian standard for amateur play is 51 feet (16 m) in width, 24 yards from each sideline. The Canadian Football League formerly used this spacing, but narrowed the hash mark spacing to 9 yards (8.2 m) in 2022. [5] A Canadian football field width is 65 yards (195 ft; 59 m), 35 feet (11 m) wider than in the American game. [6]
Canadian football, or simply football, is a sport in Canada in which two teams of 12 players each compete on a field 110 yards (101 m) long and 65 yards (59 m) wide, attempting to advance a pointed oval-shaped ball into the opposing team's end zone.
The end zone is the scoring area on the field, according to gridiron-based codes of football. It is the area between the end line and goal line bounded by the sidelines. There are two end zones, each being on the opposite side of the field. It is bordered on all sides by a white line indicating its beginning and end points, with orange, square pylons placed at each of the four corners as a visual aid. Canadian rule books use the terms goal area and dead line instead of end zone and end line respectively, but the latter terms are the more common in colloquial Canadian English. Unlike sports like association football and ice hockey which require the ball/puck to pass completely over the goal line to count as a score, both Canadian and American football merely need any part of the ball to break the vertical plane of the outer edge of the goal line.
In sport, a goal may refer to either an instance of scoring, or to the physical structure or area where an attacking team must send the ball or puck in order to score points. The structure of a goal varies from sport to sport, and one is placed at or near each end of the playing field for each team to defend. Sports which feature goal scoring are also commonly known as invasion games.
Gridiron football, also known as North American football, or in North America as simply football, is a family of football team sports primarily played in the United States and Canada. American football, which uses 11 players, is the form played in the United States and the best known form of gridiron football worldwide, while Canadian football, which uses 12 players, predominates in Canada. Other derivative varieties include arena football, flag football and amateur games such as touch and street football. Football is played at professional, collegiate, high school, semi-professional, and amateur levels.
Arena football is a variety of gridiron football designed to be played indoors. The game is played on a smaller field than American or Canadian football, designed to fit in the same surface area as a standard North American ice hockey rink, and features between six and eight players for each team playing at any given time depending on the league, resulting in a faster and higher-scoring game that can be played on the floors of indoor arenas. The sport was invented in 1981, and patented in 1987, by Jim Foster, a former executive of the National Football League and the United States Football League. The name is trademarked by Gridiron Enterprises and had a proprietary format until its patent expired in 2007.
American and Canadian football are gridiron codes of football that are very similar; both have their origins partly in rugby football, but some key differences exist between the two codes.
A kickoff is a method of starting a drive in gridiron football. Additionally, it may refer to a kickoff time, the scheduled time of the first kickoff of a game. Typically, a kickoff consists of one team – the "kicking team" – kicking the ball to the opposing team – the "receiving team". The receiving team is then entitled to return the ball, i.e., attempt to advance it towards the kicking team's end zone, until the player with the ball is tackled by the kicking team, goes out of bounds, scores a touchdown, or the play is otherwise ruled dead. Kickoffs take place at the start of each half of play, the beginning of overtime in some overtime formats, and after scoring plays. Normally, the kicking team hopes to kick the ball as far down the field as possible in order to maximize the distance the team returning the kick must advance in order to score.
The 1972 NFL season was the 53rd regular season of the National Football League. The Miami Dolphins became the first NFL team to finish a championship season undefeated and untied when they beat the Washington Redskins in Super Bowl VII. The Dolphins not only led the NFL in points scored, while their defense led the league in fewest points allowed, the roster also featured two running backs who gained 1,000 rushing yards in the same season.
The 1935 NFL season was the 16th regular season of the National Football League. The season ended with the Detroit Lions' 26–7 victory over the New York Giants in the NFL Championship Game.
The 1945 NFL season was the 26th regular season of the National Football League. The Pittsburgh Steelers and the Chicago Cardinals resumed their traditional operations.
In American football, a T formation is a formation used by the offensive team in which three running backs line up in a row about five yards behind the quarterback, forming the shape of a "T".
A comparison of American football and rugby union is possible because of the games' shared origins, despite their dissimilarities.
A comparison between American football and rugby league is possible because of their shared origins and similar game concepts. Rugby league is arguably the most similar sport to American football after Canadian football: both sports involve the concept of a limited number of downs/tackles and scoring touchdowns/tries takes clear precedence over goal-kicking.
A field goal (FG) is a means of scoring in gridiron football. To score a field goal, the team in possession of the ball must place kick, or drop kick, the ball through the goal, i.e., between the uprights and over the crossbar. The entire ball must pass through the vertical plane of the goal, which is the area above the crossbar and between the uprights or, if above the uprights, between their outside edges. American football requires that a field goal must only come during a play from scrimmage while Canadian football retains open field kicks and thus field goals may be scored at any time from anywhere on the field and by any player. The vast majority of field goals, in both codes, are placekicked. Drop-kicked field goals were common in the early days of gridiron football but are almost never attempted in modern times. A field goal may also be scored through a fair catch kick, but this is also extremely rare. In most leagues, a successful field goal awards three points.
The rectangular field of play used for American football games measures 100 yards (91.44 m) long between the goal lines, and 160 feet (48.8 m) wide. The field may be made of grass or artificial turf. In addition, there are two end zones on each end of the field, extending another 10 yards (9.144 m) past the goal lines to the "end lines", for a total length of 120 yards (109.7 m). When the "football field" is used as unit of measurement, it is usually understood to mean 100 yards (91.44 m), although technically the full length of the official field, including the end zones, is 120 yards (109.7 m). The total area of the field is 57,600 sq ft or 5,350 m2. There is a goal centered on each end line, with a crossbar 10 feet (3.0 m) above the ground and goalposts 18 feet 6 inches (5.64 m) apart extending at least 35 feet (11 m) above the crossbar. Between the goal lines, additional lines span the width of the field at 5-yard intervals. This appearance led to the use of the term gridiron in the 1880s. For a few years in the early 20th century, lines perpendicular to the lines at 5-yard intervals spanned the length of the field, giving it a checkerboard-like appearance.
An official in Canadian football is a person who has responsibility in enforcing the rules and maintaining the order of the game, like their counterparts in the American game. In the Canadian Football League, seven officials operate on the field. Lower levels of play up to the university level use less than the standard seven.
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.
The conversion, try, also known as a point(s) after touchdown, PAT, extra point, two-point conversion, or convert is a gridiron football play that occurs immediately after a touchdown. The scoring team attempts to score one extra point by kicking the ball through the uprights in the manner of a field goal, or two points by passing or running the ball into the end zone in the manner of a touchdown.
A hockey pitch is the playing surface for the game of field hockey. Historically, the game was played on natural turf (grass) and nowadays it is predominantly played on an artificial turf. The transition to artificial pitches came during the 1970s and was made mandatory for major competitions in 1976. All the lines, markings and goal specifications are outlined by the International Hockey Federation in "The Rules of Hockey".
The field shall be 110 yards long by 65 yards wide [...] Twenty-four yards in from each sideline each 5-yard stripe shall be marked by a short cross stripe parallel to the sidelines (Hash Marks).
