Sidespin November Schweizer Final Gubler School Trophy, November Annulliert. Turniere Lizenzierte. Ausschreibungen. Turniere. The ITTF has been working in close cooperation with the Korea Table Tennis Association (KTTA), led by president Ryu Seung-min, and. Two generations later in GEWO started producing table tennis tables with great success. It took them approx. 10 years until the mid sixties to become the.
TischtennisLehmann war zudem Initiator des in Berlin gegründeten Tischtennisweltverbandes International Table Tennis Federation (ITTF). Erster Präsident der ITTF. Sidespin November Schweizer Final Gubler School Trophy, November Annulliert. Turniere Lizenzierte. Ausschreibungen. Turniere. Your browser does not currently recognize any of the video formats available. Click here to visit our frequently asked questions about HTML5 video.
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Alterations are frequently made to regulations regarding equipment in an effort to maintain a balance between defensive and offensive spin choices.
The topspin stroke has a smaller influence on the first part of the ball-curve. Like the backspin stroke, however, the axis of spin remains roughly perpendicular to the trajectory of the ball thus allowing for the Magnus effect to dictate the subsequent curvature.
After the apex of the curve, the ball dips downwards as it approaches the opposing side, before bouncing.
On the bounce, the topspin will accelerate the ball, much in the same way that a wheel which is already spinning would accelerate upon making contact with the ground.
When the opponent attempts to return the ball, the topspin causes the ball to jump upwards and the opponent is forced to compensate for the topspin by adjusting the angle of his or her racket.
This is known as "closing the racket". The speed limitation of the topspin stroke is minor compared to the backspin stroke.
This stroke is the predominant technique used in professional competition because it gives the opponent less time to respond.
In table tennis topspin is regarded as an offensive technique due to increased ball speed, lower bio-mechanical efficiency and the pressure that it puts on the opponent by reducing reaction time.
It is possible to play defensive topspin-lobs from far behind the table, but only highly skilled players use this stroke with any tactical efficiency.
Topspin is the least common type of spin to be found in service at the professional level, simply because it is much easier to attack a top-spin ball that is not moving at high speed.
This type of spin is predominantly employed during service, wherein the contact angle of the racket can be more easily varied.
Unlike the two aforementioned techniques, sidespin causes the ball to spin on an axis which is vertical, rather than horizontal. The axis of rotation is still roughly perpendicular to the trajectory of the ball.
In this circumstance, the Magnus effect will still dictate the curvature of the ball to some degree.
Another difference is that unlike backspin and topspin, sidespin will have relatively very little effect on the bounce of the ball, much in the same way that a spinning top would not travel left or right if its axis of rotation were exactly vertical.
This makes sidespin a useful weapon in service, because it is less easily recognized when bouncing, and the ball "loses" less spin on the bounce.
Sidespin can also be employed in offensive rally strokes, often from a greater distance, as an adjunct to topspin or backspin.
This stroke is sometimes referred to as a "hook". The hook can even be used in some extreme cases to circumvent the net when away from the table. Players employ this type of spin almost exclusively when serving, but at the professional level, it is also used from time to time in the lob.
Unlike any of the techniques mentioned above, corkspin or " drill-spin " has the axis of spin relatively parallel to the ball's trajectory, so that the Magnus effect has little or no effect on the trajectory of a cork-spun ball: upon bouncing, the ball will dart right or left according to the direction of the spin , severely complicating the return.
In theory this type of spin produces the most obnoxious effects, but it is less strategically practical than sidespin or backspin, because of the limitations that it imposes upon the opponent during their return.
Aside from the initial direction change when bouncing, unless it goes out of reach, the opponent can counter with either topspin or backspin.
A backspin stroke is similar in the fact that the corkspin stroke has a lower maximum velocity, simply due to the contact angle of the racket when producing the stroke.
To impart a spin on the ball which is parallel to its trajectory, the racket must be swung more or less perpendicular to the trajectory of the ball, greatly limiting the forward momentum that the racket transfers to the ball.
Corkspin is almost always mixed with another variety of spin, since alone, it is not only less effective but also harder to produce.
Competitive table tennis is popular in East Asia and Europe , and has been [ vague ] gaining attention in the United States. Continental competitions include the following:.
League , France , Germany Bundesliga , and Russia are examples of the highest level. There are also some important international club teams competitions such as the European Champions League and its former competitor, [ vague ] the European Club Cup , where the top club teams from European countries compete.
In particular, Chinese-born players representing Singapore have won three Olympic medals, more than native Singaporeans have ever won in all sports.
However, these successes have been very controversial in Singapore. The rate of naturalization accelerated after the ITTF 's decision one year after China won every possible Olympic medal in the sport to reduce the number of entries per association in both the Olympics and the World Table Tennis Championships.
In , the ITTF adopted new regulations which state that players who acquired a new nationality may not represent their new association before: .
The following table presents an exhaustive list of all players to have completed a grand slam. Jörgen Persson Sweden also won the titles except the Olympic Games.
Persson is one of the three table tennis players to have competed at seven Olympic Games. Ma Lin China won both the Olympic gold and the World Cup, but lost three times, in , , and in the finals of the World Championships.
Founded in , the International Table Tennis Federation ITTF is the worldwide governing body for table tennis, which maintains an international ranking system in addition to organizing events like the World Table Tennis Championships.
On many continents, there is a governing body responsible for table tennis on that continent. Hardbat table tennis uses rackets with short outward "pips" and no sponge, resulting in decreased speeds and reduced spin.
World Championship of Ping Pong uses old-fashioned wooden paddles covered with sandpaper. From Wikipedia, the free encyclopedia. Racket sport.
For other uses, see Ping-pong disambiguation. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources.
Unsourced material may be challenged and removed. Main article: Table tennis racket. Shakehand grip. Traditional penhold Ryu Seung-min.
See also: List of naturalised Olympic table tennis players from China. For a more comprehensive list, see List of table tennis players.
Main category: Table tennis organizations. The New York Times Company. Archived from the original on 10 May Retrieved 29 August Archived from the original on 7 August Retrieved 25 June The New York Times.
Archived from the original on 19 June Retrieved 28 August Accessed 2 August Archived from the original on 13 March The Times.
Archived from the original on 8 January Retrieved 6 November Karau August Archived from the original on 30 May Cambridge University Press.
Archived from the original on 1 March United States Olympic Committee. Archived from the original on 4 November Ping Pong Panic!
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The ball, which is spherical and hollow, was once made of white celluloid. Since a plastic similar to celluloid has been used.
The ball, which may be coloured white, yellow, or orange, weighs about 0. The blade of a racket , or bat, is usually made of wood, is flat and rigid, and may be covered with a thin layer of ordinary stippled, or pimpled, rubber, which may be laid over a thin layer of sponge rubber and may have the pimples reversed.
Whatever combination is used, each of the two sides of a paddle must be different in colour. The racket may be any size, weight, or shape.
A match consists of the best of any odd numbers of games, each game being won by the player who first reaches 11 points or who, after 10 points each, wins two clear points ahead.
A point is scored when the server fails to make a good service, when either player fails to make a good return, or when either player commits a specified infraction e.
Service changes hands after every two points until all is reached, when it changes after every subsequent point. In serving, no spin may be imparted to the ball by the fingers.
This was not always so. Finger spin, especially in the United States , reached a stage where the experts could produce untakable services and the game became farcical.
Finger spin was universally banned in Interest to the spectator lies in observing the ability of one player to defeat another by well-thought-out strategy.
Increasing the speed of the game, slowing it down, varying the direction of or imparting different spin or pace to the ball, and employing gentle drop shots over the net when the opponent is out of position are some of the tactics that may be used to support the strategy planned.
Slow or defensive play at one time was so dominant that, at the world championships in Prague, an hour was needed to decide a single point.
Play is now restricted. If a game is unfinished 15 minutes after it has begun, the rest of that game and the remaining games of the match proceed under the Expedite System.