This article needs additional citations for verification. (May 2009) (Learn how and when to remove this template message)
A throw-in is a method of restarting play in a game of football (or soccer) when the ball has exited the side of the field of play.
- 1 Procedure
- 2 Infringements
- 3 History
- 3.1 Before 1863
- 3.2 The FA laws of 1863
- 3.3 Subsequent developments
- 3.4 Summary
- 4 Unusual throw-ins
- 5 References
- 6 External links
The throw-in is taken from the point where the ball crossed the touch-line, either on the ground or in the air, though typically a referee will tolerate small discrepancies between the position where the ball crossed the touch-line and the position of the throw-in. The throw-in is taken by the opponents of the player who last touched the ball when it crossed the touch-line. Opposing players may stand at any distance from the thrower but no closer than 2 m (2.2 yd), so long as they are still on the pitch. A player may take a throw-in at a distance further back from the touch-line.
At the moment of delivering the ball, the thrower must face the field of play. The thrower must have part of each foot on the touchline or on the ground outside the touchline, and use both hands to deliver the ball from behind and over the head.
The ball becomes in play as soon as it enters the field of play and leaves the hands of the thrower.
A goal cannot be scored directly from a throw-in; if a player throws the ball directly into their own goal without any other player touching it, the result is a corner kick to the opposing side. Likewise an offensive goal cannot be scored directly from a throw in; the result in this case is a goal kick for the defending team.
A player may not be penalised for an offside offence when receiving the ball directly from a throw-in. Skillful attackers can sometimes take advantage of this rule by getting behind the last defender(s) to receive the throw-in and having a clear path to goal.
The optimal release angle for attaining maximum distance is about 30 degrees above the horizontal, according to researchers at Brunel University. According to the study, players are able to throw the ball with greater release velocity for lower angles. The optimal angle would be 45 degrees if the release velocity did not depend on the angle of throw, if the ball were thrown from ground level instead of above the head, and if there was not air drag.
If an opposing player fails to respect the required distance (2 m) before the ball is in play or otherwise unfairly distracts or impedes the thrower, he or she may receive a caution (yellow card) for unsporting behaviour.
If the thrower fails to deliver the ball per the required procedure, or delivers it from a point other than where the ball left the field of play, the throw-in is awarded to the opposing team. This is commonly known as a "foul throw", though such throws are not considered fouls.
It is an infringement for the thrower to touch the ball a second time until it has been touched by another player; this is punishable by an indirect free kick to the opposing team from where the offence occurred, unless the second touch was also a more serious handling offence, in which case it is punishable by a direct free kick or penalty kick.
It is legal to throw the ball into the goal with no contact; however, a goal will not be scored directly from a throw in, nor can an own-goal, without being touched by a player. The restarts are a goal kick for the defending team and a corner kick for the attacking team, respectively. If any player (legally) touches the ball before it goes into the goal, then a goal is scored.
A goalkeeper cannot handle a ball thrown directly to him or her by a teammate. This cannot be circumvented by the keeper using the feet first before handling the ball. If this infringement occurs within the goalkeeper's penalty area, an indirect free kick is awarded. If the infringement occurs outside the goalkeeper's penalty area, a direct free kick is awarded.
A detailed description of an early predecessor of the throw-in is recorded in the novel Tom Brown's School Days, published in 1857 but based on the author's experiences at Rugby School from 1834 to 1842:
You see this gravel walk running down all along this side of the playing-ground, and the line of elms opposite on the other? Well, they're the bounds. As soon as the ball gets past them, it's in touch, and out of play. And then whoever first touches it, has to knock it straight out amongst the players-up, who make two lines with a space between them, every fellow going on his own side ... He stands with the ball in his hand, while the two sides form in deep lines opposite one another: he must strike it straight out between them.
Several features of this passages are notable:
- possession is awarded to the first player to touch the ball after it goes out of play (this is the origin of the term "touch" for the area beyond the field of play)
- the ball must be played "straight out" (i.e. perpendicular to the touch-line)
- the player must "knock" or "strike" the ball back into play
A ball in touch is dead; consequently the first player on his side must in any case touch it down, bring it to the edge of touch, and throw it straight out.
Other codes had a kick-in rather than a throw-in. These included the "Foot-Ball Club" of Edinburgh (1833), Harrow football (1858),, Barnes FC (1862),, Blackheath FC (1862),  and the later version of the Cambridge rules from November 1863.. Some of these laws permitted the ball to be kicked in any direction, while others required that it be perpendicular to the touch-line.
The FA laws of 1863
When the ball is in touch the first player who touches it shall throw it from the point on the boundary line where it left the ground, in a direction at right angles with the boundary line.
The original draft permitted the ball to the kicked or thrown, but the option of kicking was removed during the revision process.
The throw-in from the 1863 rules features several differences from the throw-in in modern association football:
- possession is awarded to the first player to touch the ball after it goes out of play (in the modern game, it is awarded against the team last touching the ball before it goes out of play)
- the ball must be thrown perpendicular to the touch-line (in the modern game, the ball may be thrown in any direction)
- the manner in which the ball is thrown is not specified (in the modern game, the ball must be thrown with two hands from above the head)
Unity with Sheffield rules
In 1867, the laws of the Sheffield Football Association awarded the throw-in against the team kicking the ball out of play. In 1868, these Sheffield rules were revised further to award a kick-in instead of a throw-in. It continued to be awarded against the team who kicked the ball into touch, and could now be played in any direction.
In 1873, Nottingham Forest FC proposed a change in the FA's throw-in law to make it more similar to the Sheffield rule: the throw-in would be awarded against the team who kicked out of play, and it could optionally be replaced by a kick-in. Only part of the suggested change was approved by the FA's meeting: the throw-in would be awarded against the team who kicked the ball out of play, but it could not be replaced by a kick-in. It was still required to be thrown in perpendicular to the touch-line.
At the FA meetings of 1875 and 1876, the Sheffield clubs attempted to introduce their kick-in into the FA's laws. Both times the change was narrowly rejected after heated debate. Matters came to a head in 1877. At the regular meeting of the FA, in February, the Sheffield Association again proposed its kick-in rule, while Clydesdale FC proposed a compromise rule which retained the throw-in but allowed it to go in any direction. The Sheffield Association agreed to withdraw its own proposal in favour of Clydesdale FC's compromise. However, even this compromise proposal was rejected, "to the intense regret of those who desired one common code of rules". This rejection prompted the publication of a pseudonymous letter in The Sportsman decrying the "hasty, ill-judged decision ... bringing the Football Association into disrepute", and denying that it represented "the general body of [Football] Association players -- even of those in London". A subsequent extraordinary general meeting of the FA was held on the 17th of April, at which the Clydesdale amendment was reconsidered and passed. As a result of this change in the FA laws, the Sheffield Association held a meeting one week later at which it agreed to abandon its own rules and accept the FA laws.
As a result of these developments, the throw-in of 1877 looked quite similar to today's: it was awarded against the team who kicked the ball out of play, and it could be thrown in any direction. There was no restriction on the technique by which the ball could be thrown; players would throw the ball great distances using only one arm. It is reported that the England international Norman Bailey was capable of propelling the ball "from the centre of the ground into the goal mouth".
Unity with Scotland
In December 1882, an "international conference" was held to address discrepancies between the laws used by the English, Scottish, Welsh and Irish football associations. One of the topics settled at this conference was the throw-in: the Scottish laws required the ball to be thrown in over the head with two hands, while the English laws, as described above, allowed the ball to be thrown with one hand in any direction. As a result of the conference, the Scottish version of the throw-in law was accepted. This new throw-in law, requiring the ball to be thrown from over the head with two hands, was formally adopted by the FA in 1883.
Scoring a goal from a throw-in
The laws of the game have never permitted a goal to be scored directly from a throw-in by the attacking team. In 1882, a change in the laws, introduced by N. Lane Jackson of Finchley FC and Morton Betts of Old Harrovians FC, made it possible to score an own goal directly from a throw-in. This possibility was removed in 1898.
Offside from a throw-in
Under the original laws of 1863, it was not possible to be offside from a throw-in; however, since the ball was required to be thrown in at right-angles to the touch-line, it would have been unusual for a player to gain significant advantage from being ahead of the ball. After the ball was permitted to be thrown in any direction in 1877, the very next year (1878) a new law was introduced to allow a player to be offside from a throw-in.. This situation lasted until 1920, when the law was altered to prevent a player being offside from a throw-in.
Since 1866, the player taking the throw-in has been forbidden to touch the ball again until it has been touched by another player.
In 1895, the player taking the throw-in was required to face the field of play. In 1896, the player was required to have "any part of both feet on the [touch]-line when he throws the ball". In 1925, this was changed to "both feet on the ground outside the line", and in 1932 to "both feet on or outside the touch-line".
Since 2005, opponents have been forbidden from approaching closer than 2 metres to the player taking the throw-in.
In 1871 a law-change introduced by Wanderers FC forbade players from playing the ball until it had travelled at least six yards. This requirement was dropped when the Scottish throw-in law was adopted in 1883.
Punishment for violations of the throw-in law
In 1882, an indirect free-kick was awarded for any violation of the throw-in law. In 1931, on a proposal by the Irish Football Association, this was changed to an award of the throw-in the opposing team (except for a violation of the double-touch rule, which remained punishable by an indirect free-kick).
The name "throw-in" is first found in the laws of 1891.
|Date||Throw-in awarded to
||Ball must be thrown in perpendicular to the touch-line||Ball must be thrown with two hands from above the head||Thrower must face field of play||Opponents may approach within 2 metres of thrower||Thrower may play ball again before it is touched by another player||Ball may be played before it touches the ground||Ball may be played before it has travelled 6 yards||Attacking goal may be scored from a throw-in||Own goal may be scored from a throw-in||Player may be offside from a throw-in||Punishment for foul throw|
|1863||First player to touch the ball after it goes out of play
|1873||Opposite team to that which last touched the ball before it went out of play|
|1882||Yes||Indirect free-kick to opponents|
|1931||Throw-in to opponents|
An uncommon but effective technique for delivering a faster than usual throw is the flip throw (notably employed in recent years by, among others, Estonian player Risto Kallaste): in it the player, during the run-up, plants the ball on the ground, flips over it, and uses the momentum gained from the flip to increase the velocity of the ball. In the Guinness Book of World Records the Danish player Thomas Grønemark is recorded to have made a throw-in of 51.33 metres. 
- IFAB, http://www.theifab.com/laws/the-throw-in-2018/chapters/the-throw-in-procedure-2018
- FIFA, https://www.fifa.com/mm/document/affederation/federation/81/42/36/lotg_en.pdf, Laws of the Game, p.46, July 2008, accessed 13 May 2011
- Association, The Football. "The website for the English football association, the Emirates FA Cup and the England football team". www.thefa.com.
- FIFA.com. "Education & Technical - Referees - Laws of the Game - FIFA.com". FIFA.com.
- Linthorne, Nicholas P.; Everett, David J. (19 January 2006). "Release angle for attaining maximum distance in the soccer throw-in". arXiv:physics/0601149.
- "Soccer Rules Q&A Search AskTheref.com". asktheref.com.
- "An Old Boy" [Thomas Hughes] (1857). Tom Brown's School Days. Cambridge: Macmillan. pp. 109, 118.
- Laws of Football as played at Rugby School (1851). Wikisource.
- Cambridge Rules (1856). Wikisource. "The ball is out when it has passed the line of the flag posts on either side of the ground, in which case it shall be thrown in straight."
- Sheffield rules (1858). Wikisource. "A Ball in touch is dead, consequently the side that touches it down must bring it to the edge of the touch, and throw it straight out at least six yards from touch."
- Rules of Melbourne Football Club (1859). Wikisource. "When a Ball goes out of bounds (the same being indicated by a row of posts) it shall be brought back to the point where it crossed the boundary-line, and thrown in at right angles with that line"
- Rules of The Foot-Ball Club (1833). Wikisource. "A free-kick if ball out of bounds"
- Rules of Harrow Football (1858). Wikisource. "If the Ball is kicked beyond the prescribed limits of the Ground, it must be kicked straight in again; and then must not be touched by the Hands, or Arms below the Elbow"
- Rules of Barnes Football Club (1862). Wikisource. "If the ball is kicked out of the ground (to be fixed before commencing the game) it is dead, and the first player who can pick it up shall bring it to the point where it left the ground, and be entitled to kick it as he thinks fit"
- Rules of Blackheath Football Club (1862). Wikisource. "A ball in touch is dead, and the first player who touches it down must kick it out straight from the place where it entered touch."
- Cambridge Rules (1863). Wikisource. "When the ball goes out of the ground by crossing the side lines, it is out of play, and shall be kicked straight into the ground again from the point where it is first stopped."
- Laws of the Eton Field Game (1847). Wikisource. "When the Ball is dead, it must be thrown in, or a bully formed parallel to the place where it stopped: these are to take place alternately"
- Laws of the Eton Field Game (1857). Wikisource. "When the ball is dead, a bully must be formed opposite to the spot where it stopped"
- Laws of the Game (1863). Wikisource.
- Laws of the Game (1863) (draft). Wikisource. "When the ball is in touch the first player who touches it shall kick or throw it from the point on the boundary line where it left the ground, in a direction at right angles with the boundary line."
- Sheffield Rules (March 1867). Wikisource. "When the ball is in touch, a player of the opposite side to that which has kicked it out shall throw it from the point on the boundary line where it left the ground"
- Sheffield Rules (1868). Wikisource. "When the ball is in touch, a player of the opposite side to that which kicked it out shall kick it in from where it went out; and no player be allowed within six yards of the ball, until kicked."
- Laws of the Game (1873). Wikisource.
- Laws of the Game (1875). Wikisource.
- Laws of the Game (1877). Wikisource.
- "The Football Association". Nottinghamshire Guardian (1649): 7. 1877-03-02.
- "White Surrey" (1877-03-02). "The Football Association Meeting [letter to the editor]". The Sportsman (2323): 4.
- "Meeting of the Sheffield Football Association". Sheffield and Rotherham Independent. lxi (5722): 7. 1877-04-24.
- "Lancastrian" (1882-12-13). "The Football Association Conference". Athletic News and Cyclist's Journal. vii (38.3): 5.
- "National Football Conference in Manchester". Glasgow Herald. 100 (292): 5. 1882-12-07.
- Laws of the Game (1883). Wikisource.
- e.g. Laws of the Game (1863). Wikisource. "A goal shall be won when the ball passes between the goal posts or over the space between the goal posts (at whatever height), not being thrown, knocked on, or carried."
- Laws of the Game (1882). Wikisource. "A goal shall be won when the ball has passed between the goal-posts under the tape or bar, not being thrown, knocked on nor carried by anyone of the attacking side"
- Laws of the Game (1898). Wikisource. "A goal shall not be scored from a throw in"
- Laws of the Game (1863). Wikisource. "When a player has kicked the ball any one of the same side who is nearer to the opponent's goal line is out of play"
- Laws of the Game (1878). Wikisource. "When a player kicks the ball, or it is thrown in from touch, any one of the same side who at such moment of kicking or throwing is nearer to the opponents' goal-line, is out of play"
- "Off Side Law Unaltered". Lincolnshire Echo (8827): 2. 1920-06-14.
- Laws of the Game (1866). Wikisource. "[T]he player throwing it in shall not play it until it has been played by another player"
- Laws of the Game (1895). Wikisource. "The player throwing the ball must stand on the touch line facing the field of play"
- Laws of the Game (1896). Wikisource.
- "The History of the Laws of the Game - 2001-2006". Retrieved 2018-09-20.
- Laws of the Game (1866). Wikisource. "When the ball is in touch, the first player who touches it shall throw it from the point on the boundary line where it left the ground, in a direction at right angles with the boundary line, and it shall not be in play until it has touched the ground"
- Laws of the Game (1871). Wikisource. "When the ball is in touch, the first player who touches it shall throw it from the point on the boundary line where it left the ground, in a direction at right angles with the boundary line, to a distance of at least six yards"
- Laws of the Game (1882). Wikisource. "In the event of any infringement of Rules 5, 6, 8, or 9, 12, or 14, a free kick shall be forfeited to the opposite side from the spot where the infringement took place."
- "Football". Carluke and Lanark Gazette: 3. 1931-06-19.
- Laws of the Game (1891). Wikisource. "Two linesmen shall be appointed, whose duty (SUBJECT TO THE DECISION OF THE REFEREE) shall be to decide when the ball is out of play, and which side is entitled to the corner-flag kick, goal-kick, or throw in."
- Arsenal nemesis Rory Delap gives Stoke more than just long throwsThe Mirror. 3 November 2008. Retrieved 4 November 2008.
- Sunday World. p.115. 2 November 2008. Retrieved 2 November 2008.
- "The Art of the Flip Throw". 1 September 2011.