- Dead ball
Dead ball is a phenomenon in many sports in which the ball is deemed temporarily not playable, and no movement may be made with it or the players from their respective positions of significance. Depending on the sport, this event may be quite routine, and often occurs between individual plays of the game.
In Gridiron football, a dead ball is a condition that occurs between football plays, after the player with the ball has run out of bounds or after he is legally downed. During the time in which a ball is dead, a team may not attempt to advance it and no change of possession can take place.
The clock may or may not be stopped during this time, depending on the circumstances.
- A batter is touched by a pitch or a batted ball (hit by pitch)
- The plate umpire hinders a catcher's throw attempt and the throw does not directly retire a runner
- A ball is illegally batted, such as when a batter hits the ball while outside of the batter's box
- A foul ball is not caught
- A fair ball touches a runner or an umpire on fair territory before it touches an infielder (including the pitcher)
- A fair ball touches a runner or an umpire before it has passed an infielder other than the pitcher
- A live ball lodges in the umpire's or catcher's equipment or in a fence or in another object on the field
- Any legal pitch touches a runner trying to score
- A live ball passes out of the playing field (unless it hits or crosses over a base on the ground)
- A runner or spectator commits interference
- The defense leaves the field after the game ends
- An umpire calls time. Umpires typically call "time" after being asked to do so by a participant. An umpire in chief (plate umpire) will also call "time" when:
- Weather, darkness or similar conditions make play impossible or dangerous
- Light failure makes it difficult or impossible for the umpires to follow the play
- An accident incapacitates a player or an umpire
- The umpire wishes to examine the ball, to consult with either manager, or for any similar cause.
- An umpire orders a player or any other person removed from the playing field.
- A balk or obstruction is committed and immediate ensuing play ends
- The catcher interferes with the batter before the time of pitch
In general, the ball does not automatically become dead after playing action ends.
After a dead ball, the ball becomes alive again when the pitcher stands on the pitcher's plate ready to pitch, the batter, catcher and umpire are ready, and the umpire calls or signals "Play."
Players and coaches may ask an umpire for "time," but they themselves may not call "time" and cause the ball to become dead. Nevertheless, "time" is usually granted by the umpire when asked, and thus, colloquially, it is often said that players or coaches indeed can "call time." Unlike other U.S. sports, the phrase "time out" is not used in baseball.
In cricket, a dead ball is a particular state of play in which the players may not perform any of the active aspects of the game. In other words, batsmen may not score runs and fielders may not attempt to get batsmen out.
The ball, referring to the cricket ball, becomes live when the bowler begins his run up in preparation to bowling at the batsman. In the live state, play occurs with the batsmen able to score runs and get out.
The ball then becomes dead when any of the following situations occur:
- The umpire is satisfied that, with adequate reason, the batsman is not ready for the delivery of the ball.
- The ball passes the batsman, is gathered by the wicket-keeper, and the batsmen obviously decline to attempt to take runs.
- The ball is finally settled in the hands of the wicket-keeper or the bowler, and the batsmen obviously decline to attempt to take any more runs.
- The umpire feels that both the fielding team and the batsmen consider the ball no longer to be in play.
- The ball reaches the boundary and four runs or six runs are scored.
- Either batsman is out.
- The ball lodges in the clothing or equipment of a batsman or umpire.
- The ball lodges in a protective helmet worn by a fielder.
- The batsmen attempt to run leg byes, and, in the umpire's opinion, no attempt was made either to hit the ball with the bat or to evade it. This nullifies the leg byes.
- The umpire intervenes in the occurrence of injury or unfair play.
Umpires may also call dead ball at their discretion, in the case of a series for events for which there is no provision in either the Laws of Cricket or agreements made prior to the match. This happened on 9 October 2005, when Australian batsman Michael Hussey hit the retracted roof at the Telstra Dome. What would have been six in an open stadium was ruled a dead ball, and no runs were awarded.
If necessary to make it clear to the players that the umpire considers the ball to be dead, the umpire signals dead ball by crossing and uncrossing his arms in front of his body.
In association football, the term "dead ball" refers to a situation when the ball is not in play, e.g. when play has not been restarted after the ball has gone out of bounds or a foul has been committed. It also applies before each kick-off, either at the start of each half or after a goal has been scored. In a dead ball situation, players can position the ball with their hands prior to restarting play. Furthermore, even though the ball is not in play, the referee may still award a foul for any incident that occurs off the ball.
National Basketball Association
In the National Basketball Association (NBA) in North America, most or any time play is stopped the ball is considered dead. Player substitutions may then be made. See section IV of the NBA rule book, See also or.
Other sports in which the ball may be deemed a "dead ball" include rugby football.
- ^ Baseball Field Guide: An In-Depth Illustrated Guide to the Complete Rules of Baseball by Dan Formosa, Da Capo Press; Rev Upd edition (April 7, 2008), ISBN 0306816539.
- ^ The Laws of Cricket - Law 23 (Dead Ball)
- ^ "NBA Rulebook". NBA Rulebook. NBA.com. http://www.nba.com/analysis/rules_6.html?nav=ArticleList. Retrieved 05/08/2011.
- ^ "Super glossary". Super Glossary. http://www.superglossary.com/Definition/Basketball/Dead_Ball.html. Retrieved 05/08/2011.
- ^ "Mimi.hu". Mimi.hu. http://en.mimi.hu/basketball/dead_ball.html. Retrieved 05/08/2011.
Gridiron football concepts Codes Levels of play Field Equipment PositionsOffense: Quarterback • Running backs (Halfback, Fullback, H-back) • Receivers (Wide receiver, Tight end, Slotback) • Linemen (Center, Guard, Tackle)
Defense: Linemen (Defensive tackle, Defensive end, Nose tackle) • Linebacker • Defensive back (Cornerback, Safety, Nickelback, Dimeback, Halfback)
Special Teams: Placekicker • Punter • Kickoff specialist • Long snapper • Holder • Punt returner • Kickoff returner • Return specialist • Gunner
Other: Utility player • Triple-threat man • Skill position
Play typesOffense: Rush • Pass • Incomplete pass • Lateral • Bootleg play • Draw play • End-around • Flea flicker • Flexbone formation • Fourth down conversion • Hail Mary pass • Halfback option play • Hook and lateral • Kneel • Motion • Hurry-up offense • Option run • Option offense • Play-action pass • Quarterback keeper • Quarterback sneak • Quick kick • Reverse • Scramble • Screen pass • Spike • Statue of Liberty • Sweep • Trick play • Wildcat formation
Defense: Tackle • Blitz • Rush • Sack • Shooting the gap • Stunt • Zone blitz
Special Teams: Kickoff • Kickoff return • Punt • Punt return • Drop kick • Fair catch • Fair catch kick • Icing the kicker • Onside kick • Squib kick • Try
Scoring PenaltiesBlocking below the waist • Block in the back • Chop block • Clipping • Delay of game • Encroachment • Equipment violations • Face mask • False start • Horse-collar tackle • Illegal contact • Illegal formation • Illegal forward kick • Illegal forward pass • Illegal hands to the face • Illegal motion • Illegal participation • Illegal shift • Illegal substitution • Illegal touching • Illegal touching of a free kick • Illegal use of hands • Ineligible receiver downfield • Intentional grounding • Holding • Leaping • Neutral Zone Infraction • Offside • Palpably unfair act • Pass interference • Personal Foul • Roughing the kicker • Roughing the passer • Roughing the snapper • Sideline infraction • Spearing • Time count • Tripping • Unsportsmanlike conduct Turnovers Downs Play clock Statistics Celebrations Miscellaneous
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