What are the specific criteria for offside?

what are the specific criteria for offside?

Modern football standard rules, 11-a-side football rules:

1. The field area is within 15 yards long and 1 yards wide. On each sideline, 25 yards away from the end line, two sign posts are set up respectively.

2. The goal consists of two vertical poles, which are feet apart.

3. Choose the goal or kick-off right with coin.

4. after the game time in the first half, change venues.

5. When a player kicks the ball out, when any player on the same team stands in front of the ball and is closer to the opponent's end line than the other player, he shall not take part in the game to touch the ball, nor shall he hinder other players from touching the ball in any way.

6. when the ball is kicked out of the sideline, it is a dead ball, and the opponent kicks the ball directly into the stadium at the out-of-bounds place to resume the game.

7. When a team kicks the ball out of the other team's end line, any player of the other team who gets the ball first can serve a free kick at 25 yards from the vertical end line.

8. When the ball is kicked, players should not touch the ball behind the opponent's end line.

9. If the ball falls behind the end line and out of the touchline marker, the free kick should be served 25 yards away from the end line.

1. When a player kicks a free kick, the player on the same team should not be between him and the opponent's end line, and the opponent should not stand within 1 yards of him.

11. A player can kick a free kick in any way.

12. If the ball passes between two poles or from an infinite height above them, it will win a goal.

13. During the game, you can touch the ball with any part of your body, but you are not allowed to hold or hit the ball with your hands, arms and shoulders.

14. All impacts are fair and legal, but it is forbidden to hug, push, trip off or make noise with your feet.

This set of formal original rules was published by the President of the English Football Association in BELISLIFE magazine. Three years later, the Football Association added that the goal height is 6 yards and the width is 8 yards, and a rope is pulled between the two columns as the goal height.

11-a-side football rules

Introduction to the football venue

(1) Stadium

1. The area of the stadium must comply with the rules. FIFA has stipulated that the venue for the World Cup finals should be 15 meters long and 68 meters wide. The venue of domestic grass-roots competitions can be adapted to local conditions, but in any case, the length of the sideline must be longer than the length of the goal line, and the area of each area in the venue shall not be changed.

2. The ground of the court must be flat and with appropriate hardness, and the principle of not hurting the players and not affecting the normal operation of the ball is adopted. FIFA World Cup Organizing Committee has instructed that the World Cup should not be played on artificial turf.

(2) Boundary line

1. All lines of the court shall be flush with the ground, and shall not be made into V-shaped grooves or convex lines above the ground. The color of the line should be clear. It is best to draw lines with white lime powder or mortar for land courses, and with hydrated lime powder for natural turf courses, rather than with quicklime powder or mortar. In order to prevent the rain from washing away, white paint can also be used to draw lines, but it is not allowed to use the grooves filled with battens, bricks or broken tiles as boundaries.

2. The width of each line in the site shall not exceed 12 cm (generally 12 cm is appropriate). The width of sideline and goal line should be included in the field area, and the width of other lines should also be included in the area. The goal area and penalty area should be measured from the inside of the goal post and the outside of the goal line. The width of the goal line must be equal to the width of the goal post.

(3) sideline and goal line

1. The football field delimited by sideline and goal line is the basic activity area of players in football match. After the start of the game, players and other personnel are not allowed to enter the stadium without the permission of the referee.

2. When the whole ball crosses the sideline or the goal line outside the goal from the ground or the air, it is a dead ball, and the game is resumed by throwing a foul ball, kicking a gateball or a corner kick.

3. The goal line between goals is the standard line to judge whether the ball enters the goal. Only when the whole ball crosses this line in the goal from the ground or the air can the ball enter the goal.

4. When the penalty kick is executed, the defending goalkeeper should stand on the goal line between the goals.

5. When kicking an indirect free kick in the opponent's penalty area, if the ball is less than 9.15m from the goal line between goals, the defender is allowed to stand on the goal line.

(4) center line

1. The center line divides the whole court into two equal halves, and the width of the center line should be included in the area of each half.

2. At the kick-off, both players must stand in their own half (and the defenders are not allowed to enter the middle circle). When the referee whistles and the ball is kicked and moves forward, the game starts. At this time, the players of both sides can enter the other half.

3. The player has no offside foul in his own half.

(5) goal area

1. You can kick the gateball and your own free kick at any point in the goal area.

2. When the ball is in the goal area, the referee orders the game to stop. If the game is resumed by dropping the ball, the ball should be dropped on the goal area line nearest to the place where the ball was at the time of stopping the game and parallel to the goal line.

3. When kicking an indirect free kick in the opponent's goal area, it should be executed on the goal area line closest to the foul place and equal to the goal line.

(6) penalty area

1. The goalkeeper can touch the ball with his hand in his own penalty area.

2. When a player violates any of the ten fouls in Chapter 12 of the rules in his own penalty area, he shall be awarded a penalty.

3. When kicking a gateball or a free kick in the penalty area:

(1) The opponent should quit the penalty area.

(2) The ball must be kicked directly out of the penalty area before the game can be resumed.

4. When taking a penalty, all players except the penalty taker and the opposing goalkeeper must be in the penalty area, outside the penalty arc and behind the penalty point; When the ball is kicked and moves forward, the game is resumed, and then the players can enter the penalty area.

(7) corner arc

when kicking a corner ball, the ball must be placed in the corner arc.

(8) penalty spot

When taking a penalty, the ball must be placed at the penalty spot. When the penalty spot is blurred due to heavy rain, the referee will determine the position of the penalty spot.

(9) midpoint

The midpoint of the midline is commonly known as the tee point. When kicking off, the ball must be placed at this point.

(1) In the middle circle

When kicking off, the defenders must stand in their own half outside the middle circle. This has the same meaning as when kicking a free kick, the defender must stand at least 9.15 meters away from the ball, and its role is to ensure that the attacker is not hindered by the other side when kicking the ball.

(11) Free-throw arc

When taking a penalty, all players except the penalty taker and the opposing goalkeeper must be in the penalty area, outside the penalty arc and behind the penalty point; When the ball is kicked and moves forward, the game is resumed, and then the players can enter the free throw arc.

(12) Corner flag

1. Corner flag is a sign around the field and should be perpendicular to the intersection of the sideline and the outer edge of the goal line.

2. The height of the corner flagpole (from the top of the pole to the ground) shall not be less than 1.5m, and the top of the pole shall be flat-topped to avoid stabbing the players. The color of the corner flag should be obviously different from the flag used by the assistant referee and the color of the venue. When the lights are used in the evening game, the white corner flag can be used. Corner flags can be made of cloth or silk, and the specifications are generally 3cm× 4cm.

(13) midline flag

At least 1m away from the sideline at both ends of the midline, a midline flag with the same size as the corner flag can be erected as the symbol of the midline. It is beneficial to judge offside.

(14) goal

The goal of the competition field should be fixed, and the width and thickness of the post and beam should be the same. The goal color must be white.

(15) goal net

1. The goal net is used to help the referee see whether the ball has entered the goal, so the goal net can only be hung behind the goal, firmly attached to the goal beam and column, and the lower end is nailed to the ground, and the ball is not allowed to pass through. Hooks shall not be nailed to the side of the doorpost or the lower edge of the beam.

2. The goal net should be properly propped up, so that the goalkeeper has enough room to move, and the ball will not pop up after it enters the net. Generally, the method of pulling up the net with a rope from behind the goal is adopted.

(16) Around the venue

1. According to the requirements of the competition organization, a photographer's limit line can be drawn outside the goal line (generally 2 meters away from the corner flag, 3.5 meters away from the intersection of the six-zone line and the goal line, and 6 meters away from the goal post), and photographers should be behind this line. If there is a billboard behind it.

2. The seat of the fourth official is located at the extension line near the center line outside the stadium; The seat of the substitute is located about 1 meters away from both sides of the seat of the fourth official and flush with it. Coaches, substitutes and staff of each team should be on the bench. The number of substitute seats is determined according to the requirements of the competition organization. At present, China has determined it as 14 seats.

3. technical area. The term "technical area" has been mentioned in the second article of the resolution of the International Football Council in Chapter III of the Rules of Football Competition, and there are seats for the technical personnel and substitutes of the team in the area.

the size and location of the technical area can be adjusted according to the site conditions. The following are general instructions for setting up the technical area:

(1) The technical area is the area 1 meter outward from both sides of the bench and within 1 meter from the sideline.

(2) It is suggested to define this area with a marker line.

(3) The number of people in the technical area is stipulated by the competition rules.

(4) According to the competition regulations, the personnel in the technical area should be confirmed before the competition.

(5) Only one person is allowed to conduct tactical command in the technical area at a time, and should return to the bench immediately after the command.

(6) Coaches and other officials must be in the limited technical area, unless there are special circumstances, such as when physiotherapists or team doctors get permission from referees to go in and see injured players.

(7) Coaches and other personnel in the technical area must be responsible for their own actions.

(XVII) Check the venue

The referee should carefully check the venue. Before the start of the game and during the intermission, the blurred boundaries (especially those near the goal) should be redrawn by the relevant personnel. If the field is muddy and the boundary is unclear due to rain and snow, 1 flags can be inserted at the specified positions around the field, and the distance between the flags is 1 meter, and the specifications of the flags are the same as those of the corner flags, so as to help the referee make a judgment.