touchback

　 　

WordNet

1. (American football) a play in which the opposing team has kicked the football into your end zone

PrepTutorEJDIC

1. (アメリカンフットボール・ラグビー・サッカーで)タッチバック

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/08/17 21:42:17」(JST)

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This article is about the football term. For the 2011 film, see Touchback (film).

In American football, a touchback is a ruling which is made and signaled by an official when the ball becomes dead on or behind a team's own goal line (i.e., in an end zone) and the opposing team gave the ball the momentum, or impetus, to travel over or across the goal line. Such impetus may be imparted by a kick, pass, fumble, or in certain instances by batting the ball. A touchback is not a play, but a result of events that may occur during a play. A touchback is the opposite of a safety with regard to impetus since a safety is scored when the defending team is responsible for the ball becoming dead on or behind its own goal line.

Examples of instances where a touchback would be awarded include when:

• A kickoff or punt enters the end zone and becomes dead behind the goal line without being advanced beyond the goal line by a player of the receiving team. Thus, a player on the receiving team could attempt to advance the ball out of his own end zone, but the original impetus from the kick remains as long as the ball does not completely cross the goal line into the field of play. Note that if a kick is fielded by the receiving team in its end zone, is advanced beyond the goal line, and then the ball carrier retreats back into his own end zone where the ball is downed, it is a safety because the impetus would then be charged to the receiving team.
• A kickoff or punt touches the ground in the receiving team's end zone before being touched by a player of the receiving team. However, in American football, the ball is considered live until it is downed by a member of the receiving team. If a kicked-off ball goes untouched into the end zone and then is recovered by a member of the kicking team, it's a touchdown for the kicking team.
• A kickoff or punt goes out of bounds behind or over the receiving team's goal line.
• A ball carrier fumbles the ball within the field of play forward into his opponents end zone and the loose ball then goes out of bounds behind or above his opponent's goal line or is recovered and downed by an opposing player in the end zone. The opposing team would be awarded the touchback.
• A defensive player intercepts a forward pass in his own end zone and the ball becomes dead behind or over the goal line. Like the instance of a kickoff or punt fielded in an end zone, the intercepting player can attempt to advance the ball but it is still a touchback as long as the ball never completely crosses the goal line into the field of play before it is downed.
• A blocked punt goes back into the end zone and the defensive team intentionally bats or kicks the ball out the back of the end zone. Offense must decline penalty.

American football

In standard outdoor American football, the team awarded the touchback receives possession of the ball at its own 20-yard line, except in college football, where the team awarded the touchback receives possession at its own 25-yard line on kickoffs and free kicks after a safety as of the 2012 season. In arena football, and other indoor football games, a touchback results in the team awarded the touchback receiving the football at its own 3-yard line. This can result from any of the above events except for punting, which is not a part of arena football. (In arena football, a kicked ball usually bounces back into play off of the rebound nets, but the above can still occur when the ball lands in the slack nets behind the goalposts after a kickoff, passes under the rebound nets and out of play, or in the event of fumbles and interceptions.)

On March 23, 2016, the NFL announced that it would award a touchback line at the 25-yard line and much discussion and analysis on the impact of this change has emerged. This new rule will be re-evaluated after the 2016 NFL season.

In July 2016, the NCAA announced that it had approved the Ivy League to test an experimental kickoff rule in conference play in the 2016 season. Under this rule, kickoffs will be taken from the 40-yard line instead of the 35, and touchbacks will be marked at the 20-yard line instead of the 25. The rule will be re-evaluated in February 2017.

College football

In college football, if a defensive player gains possession of the ball during a play between his own five-yard line and goal line and the player's original momentum carries him into the end zone, there is no touchback. Instead, the ball is dead at the point where possession changed. In the National Football League, this rule applies regardless of whether they occur inside the five-yard line

Canadian football

In Canadian football the term touchback is not used. The failure to advance a kicked ball out of the goal area results in a single point being scored by the kickers, as well as possession by the receivers at their 35-yard line or at the point the ball was kicked from. A turn-over by fumble or interception in the defense's goal area results in a scrimmage on the 25-yard line with no points awarded.

Six- and eight-man football

For high schools which play six-man football and eight-man football on an 80-yard long field, a touchback is brought out to the 15-yard line.

Differences

A special rule applies in college football and the NFL with regard to field goal attempts. If a missed field goal occurs in these leagues, where the other team receives possession of the ball depends on the spot from which the ball has been kicked. In NCAA football, the ball will be placed either on the twenty or the line of scrimmage of the play in which the attempt was made; in the NFL, either the twenty or the place from which the ball was kicked. (In either case, the ball goes to the spot which is further from the goal line.) The purpose of this rule is to discourage low-percentage, long-range field goal attempts and to deemphasize the advantage which can accrue when only one team has a kicker who has a reasonable possibility of success from a great distance. In American high school football (except in Massachusetts and Texas, which use college football rules), the missed field goal, regardless of where attempted on the field, results in a touchback as long as the attempt breaks the plane of the goal line, and in arena football, the field goal is treated as if it were a punt.

References

Japanese Journal

• 三次元測定機用タッチ信号プローブの着座機構の開発

• 日高 和彦,西村 国俊
• 精密工学会誌 66(2), 298-303, 2000-02-05
• … The elastic deformation of the six contact points varies according to the stylus touchback motion, and a dispersion of the elastic deformation brings the dispersion of the reseat position. …
• NAID 110001372884

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