American indoor football used by NFL and NCAA

The rules of American football
Because American football is more representative between the two, other English speaking countries even simply call it "gridiron" to refer to American football. The standard course used by the NFL and NCAA is a rectangular lawn 360 feet (120 yards or 109.7 meters) long and 160 feet (53.33 yards or 48.8 meters) wide (some indoor competitions use imitation grass)
Football Chinese Zhou Kai
Both parents are from the mainland, and their mother Zhou Ying participated in the 1984 Olympic hurdles Wang Kai graduated from Virginia Tech and made history when he was selected by bill in the fifth round of the 2010 draft However, due to injury, the result was not outstanding, and he was transferred to two or three teams Now living in Beijing, he is the vice president of the Development Department of the National Indoor Football LeagueHow many points can you get in the American indoor football touchdown
American football ball is slightly smaller than English football. The ball is 11 to 11.5 inches long, the long axis of the ellipse is 28 to 28.5 inches, the short axis is 21.25 to 21.5 inches, and weighs 14 to 15 inches. During the game, the players who bring the ball to the front of the opponent's goal will get 6 points for touchdown in the zone; You can play set pieces againWho knows the rules of American football? Explain the situation of each team in NFL. Thanks_ Baidu knows
American football scores in the form of: 6 points for touchdown with the ball; After reaching the array, kick and shoot, and score 1 point; 3 points will be given if the shot is made during the competition; If the opponent is forced into a dead ball in the opponent's division, it will be counted as a safety score, and 2 points will be obtained. Rules of football match. A kick given to a non foul team after a foulAll rules of American football
Rules: American football matches are played between two teams with a maximum of 53 players (NFL rules). Both sides send 11 players to play, and can change some or all of the players at any time. The one who gets the ball control is the attacker, whose goal is to push the ball to the opponent's position as far as possibleSeeking the full version of the rules of American football
(11) In case of emergency, members, officials, employees, players and coaches of the Rugby Federation shall watch each game. The League will decide whether to continue the game. In case of unexpected events, such as severe cold weather, natural or human disasters, power failure and audience interference, etc. The game will be suspendedAmerican media said that Chinese youth began to play American football
According to the American media on July 24, American football has developed rapidly in China since the establishment of the Stonehenge American football training institution in 2012. At present, China has a professional league - China professional American Indoor Football League, which is composed of teams from six cities in China. Chinese youth began to play American footballFour American balls
The four major professional sports leagues in North America are composed of NBA (National Basketball Association), NFL (National Football League) and MLB (Major League Baseball)American football rules
There are 11 players on both sides of the game, one is the offensive group, the other is the defensive group. The purpose of the attack team is to push the ball to the opponent's position as far as possible, and strive to cross the scoring line and enter the opponent's end zone for scoring. There are two methods of attack. The player runs forward with the ball (charging the ball) or passes the ball in the air (passing the ball)How many kinds of football are there? What are the respective rules
American football rules (I) ball 1 In order to meet the needs of the league, the home team should have 36 balls (outdoor matches) and 24 balls (indoor matches) for the match balls tested by the referee with a pressure tester 2 hours before the start of the game