Play ends once the shuttlecock has struck the floor or ground, or if a fault has been called by the umpire, service judge, or (in their absence) the opposing side.
At high levels of play, the sport demands excellent fitness: players require aerobic stamina, agility, strength, speed, and precision.
[citation needed] As early as 1860, a London toy dealer named Isaac Spratt published a booklet entitled Badminton Battledore – A New Game, but no copy is known to have survived.
[6] An 1863 article in The Cornhill Magazine describes badminton as "battledore and shuttlecock played with sides, across a string suspended some five feet from the ground".
[6] The Badminton Association of England (BAE) published these rules in 1893 and officially launched the sport at a house called "Dunbar"[c] in Portsmouth on 13 September.
[17] The arguments for this generally rely on crude mechanical reasoning, such as claiming that a lower tension string bed is more bouncy and therefore provides more power.
This is, in fact, incorrect, for a higher string tension can cause the shuttle to slide off the racquet and hence make it harder to hit a shot accurately.
[citation needed] The choice of grip allows a player to increase the thickness of their racquet handle and choose a comfortable surface to hold.
A shuttlecock (often abbreviated to shuttle; also called a birdie) is a high-drag projectile, with an open conical shape: the cone is formed from sixteen overlapping feathers embedded into a rounded cork base.
[20][21] Badminton offers a wide variety of basic strokes, and players require a high level of skill to perform all of them effectively.
The backhand clear is considered by most players and coaches to be the most difficult basic stroke in the game, since the precise technique is needed in order to muster enough power for the shuttlecock to travel the full length of the court.
In the forecourt, a high shuttlecock will be met with a net kill, hitting it steeply downwards and attempting to win the rally immediately.
In the midcourt, a high shuttlecock will usually be met with a powerful smash, also hitting downwards and hoping for an outright winner or a weak reply.
Drives and pushes may be played from the midcourt or forecourt, and are most often used in doubles: they are an attempt to regain the attack, rather than choosing to lift the shuttlecock and defend against smashes.
One consequence of the shuttlecock's drag is that it requires considerable power to hit it the full length of the court, which is not the case for most racquet sports.
In doubles, a lift is the safest option but it usually allows the opponents to continue smashing; blocks and drives are counter-attacking strokes but may be intercepted by the smasher's partner.
Unlike in tennis, the server's racquet must be pointing in a downward direction to deliver the serve so normally the shuttle must be hit upwards to pass over the net.
Experienced players will be aware of the trick and cautious not to move too early, but the attempted deception is still useful because it forces the opponent to delay their movement slightly.
Slicing involves hitting the shuttlecock with an angled racquet face, causing it to travel in a different direction than suggested by the body or arm movement.
For example, a good crosscourt sliced drop shot will use a hitting action that suggests a straight clear or a smash, deceiving the opponent about both the power and direction of the shuttlecock.
The main advantage of a spinning net shot is that the opponent will be unwilling to address the shuttlecock until it has stopped tumbling, since hitting the feathers will result in an unpredictable stroke.
If the net shot is tight and tumbling, then the opponent's lift will not reach the back of the court, which makes the subsequent smash much harder to return.
If an opponent tries to anticipate the stroke, they may move in the wrong direction and may be unable to change their body momentum in time to reach the shuttlecock.
Smashing tends to be less prominent in singles than in doubles because the smasher has no partner to follow up their effort and is thus vulnerable to a skillfully placed return.
Whenever possible, a pair will adopt an ideal attacking formation with one player hitting down from the rear court, and their partner in the midcourt intercepting all smash returns except the lift.
If a pair is forced to lift or clear the shuttlecock, then they must defend: they will adopt a side-by-side position in the rear midcourt, to cover the full width of their court against the opponents' smashes.
Men's doubles are the most aggressive form of badminton, with a high proportion of powerful jump smashes and very quick reflex exchanges.
The Badminton World Federation (BWF) is the internationally recognized governing body of the sport responsible for the regulation of tournaments and approaching fair play.
Top players can collect the world ranking points and enable them to play in the BWF Super Series open tournaments.
The following is a list of manifest differences: Statistics such as the smash speed, above, prompt badminton enthusiasts to make other comparisons that are more contentious.