Safekipedia

Gridiron football

Adapted from Wikipedia · Discoverer experience

Diagram showing the layout of a Canadian football field.

Gridiron football is a family of team sports that started from rugby football and is mainly played in the United States and Canada. The most famous version is American football, played with 11 players in the United States, while Canadian football, played with 12 players, is popular in Canada. There are also other versions like arena football, flag football, and games played for fun such as touch and street football.

These sports began in the 19th century from older games related to association football and rugby football. The first recorded game was played between Harvard and McGill Universities in 1874. Over time, both American and Canadian football grew and shared some rules with each other.

What makes gridiron football special are the hard plastic helmets, shoulder pads, the forward pass, the system of downs, and unique positions. Players measure distances in yards, and the ball is a distinctive brown leather shape with pointed ends. The international governing body for the sport is the International Federation of American Football (IFAF).

Etymology

The sport is usually called "football" in the countries where it began, like the United States and Canada. In Europe, people often say "American football" because the word "football" there usually means association football ("soccer").

Sometimes, both American and Canadian football are called "gridiron football." This name comes from an old way of marking the field. Early fields had many lines running across and down the field, making a pattern like a grid. This looked like a cooking gridiron. Later, the game changed to use different lines, but the name "gridiron" stayed. In Australia, American football is also called "gridiron" or "American football," because "football" there usually means Australian rules football or rugby league. The group that oversees American football in Australia is Gridiron Australia.

History

Gridiron football started from informal games played in North America in the 1800s. These early games had different local rules and were similar to modern rugby union and soccer. The first known game happened at University College on the University of Toronto's St. George campus in November 1861.

In the 1860s, university teams began playing each other, which led to more uniform rules and the start of college football. While many U.S. schools used soccer rules from the English Football Association, Harvard University kept its traditional style of play. Meanwhile, McGill University in Montreal followed rugby union rules. In 1874, Harvard and McGill played two games using each other's rules. Harvard liked McGill's rugby-style rules and started using them. These rules were then used when Harvard and Yale University played their first intercollegiate sports game in 1875. After that, Yale and Princeton University also began playing this style of game, and it spread to other U.S. colleges.

American football teams later introduced new rules that made the game different from rugby. Important changes were led by Walter Camp, such as the line of scrimmage and the system of downs. In 1906, the forward pass was allowed, letting the quarterback throw the ball forward. Canadian football stayed closer to rugby for many years, but players in the western provinces wanted to adopt American-style changes. Over time, Canadian football added more American rules but kept some old features, like a 110-yard field, 12-player teams, and three downs instead of four. Around the same time, the Burnside rules helped shape the modern rules of Canadian football.

Versions

American football is the most well-known type of gridiron football. It uses eleven players and is played on a 100-yard field. The main professional league is the National Football League (NFL), and college teams follow rules set by the NCAA. There are also special versions like sprint football for lighter players.

Commonwealth Stadium in Edmonton, with a Canadian Football League game in progress

Canadian football is mainly played in Canada. It uses twelve players and is played on a slightly longer field. It also has a special scoring play called a "single."

There are many other versions of the game too. Some use fewer players, like nine-man or six-man football, often played in small towns. Indoor football uses smaller fields and special rules. Flag football replaces tackling with pulling a flag from the player carrying the ball. Touch football and backyard football are informal games played for fun. There is also wheelchair football for players with mobility challenges, and women's American football, which follows the same rules as the men's game.

Professional leagues

The top players in the NFL earn some of the biggest salaries of any athletes around the globe.

Professional gridiron football leagues
LeagueCountrySportFoundedTeamsRevenue
US$ (bn)
Average
attendance (2023)
Average
salary
US$
National Football LeagueUnited StatesAmerican football19203214.069,5282,700,000
Canadian Football LeagueCanadaCanadian football195890.222,50589,000
United Football LeagueUnited StatesAmerican football202480.1 (est.)13,50550,000
Indoor Football LeagueUnited StatesIndoor football2008143,500
National Arena LeagueUnited StatesIndoor football2016112,450
The Arena LeagueUnited StatesIndoor football20246
Arena Football OneUnited StatesIndoor football202512
Liga de Fútbol Americano ProfesionalMexicoAmerican football201682,000600
X-League (X1/X2/X3)JapanAmerican football197118/18/1755,000
European League of FootballEuropeAmerican football2021173,9146,300
German Football LeagueGermanyAmerican football197916

Collegiate leagues

LeagueCountrySportYear
founded
DivisionsTeamsPromotion/relegationAverage
attendance
NCAAUnited StatesAmerican football19064664No27,142 (Div. I)
Flag football2024112No
NAIAUnited StatesAmerican football1940197No
Flag football2021124No
NJCAAUnited StatesAmerican football1938250No
Flag football202317No
CCCAAUnited StatesAmerican football1929167No
U SportsCanadaCanadian football1961127No3,370
ONEFAMexicoAmerican football1978122No
CONADEIPMexicoAmerican football2010112No
JAFAJapanAmerican football19341–5220Yes
KAFASouth KoreaAmerican football1945139No
BUAFLUnited KingdomAmerican football2007383Yes
CSFLUnited StatesSprint football194019No
MSFLUnited StatesSprint football202217No
NCFAUnited StatesAmerican football1940127No

Comparison of codes

CodeTraditional
season
Field
length
End
zones
Field
width
Player
count
Line of
scrimmage
DownsLine
to gain
Forward motion
before snap
Goal posts
AmericanFall
Winter
10010531⁄3117410NoAt back of end zones
181⁄2 (NFL and college) to 231⁄3 (high school) ft. wide
CanadianSummer
Fall
1102065127310YesOn goal lines
181⁄2 ft. wide
IndoorSpring508281⁄384410YesAt back of end zones, 9 to 10 ft. wide
Rebound nets on sides optional
Flag5010255410None
6-manFall80104063415NoAt back of end zones
231⁄3 wide

Gameplay

Main article: List of gridiron football rules

Gridiron football is a team sport where two teams try to score points by moving the ball toward the other team's end zone. The game starts with a coin toss to decide which team will kick the ball or receive it. Players line up on opposite sides of the field, and the kicking team sends the ball to the other team, who can catch it and run with it or let it stop.

Once the ball is kicked, play from scrimmage begins. The team with the ball, called the offense, tries to move it closer to the other team's end zone. The other team, the defense, tries to stop them. The offense can run with the ball or throw it forward to a teammate. The play ends when the ball carrier is tackled, goes out of bounds, or a forward pass is not caught.

If a team breaks a rule during play, the other team gets a penalty, usually losing a few yards of field space. Teams have a limited number of tries, called downs, to move the ball ten yards. If they succeed, they get another set of downs. If not, the other team gets the ball.

Scoring points happens in a few ways. A touchdown is worth six points and happens when the offense gets the ball into the opponent's end zone. After a touchdown, the team can try for one or two more points with a try. A field goal is worth three points and is kicked through the opponent's goalposts. If a team commits a foul in its own end zone, the other team gets two points called a safety.

The game is split into four quarters, with a halftime break in the middle. The team with the most points at the end wins. If the score is tied, there are special rules to decide the winner, but pure sudden-death overtime is no longer used. Games usually last over three hours because of breaks and stoppages.

Injuries

See also: Health issues in American football

A study from 2017 looked at the brains of players who had passed away. Many players from different levels of the game, like the NFL, CFL, college football, and high school football, were found to have a condition called chronic traumatic encephalopathy (CTE).

Besides this, players often hurt their legs, arms, and lower backs while playing.

Images

A 1904 diagram showing two football teams lined up for the start of a game on the field.
A historic photograph of the Canton Bulldogs vs. Massillon Tigers football game from 1906.

Related articles

This article is a child-friendly adaptation of the Wikipedia article on Gridiron football, available under CC BY-SA 4.0.

Images from Wikimedia Commons. Tap any image to view credits and license.