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Betting
System
Sports betting is the general
activity of predicting sports results by making a wager on the
outcome of a sporting event. Perhaps more so than other forms of
gambling, the legality and general acceptance of sport betting
varies from nation to nation.
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Basketball
Tennis is a
racquet sport played between two players (singles) or between two teams
of two players each (doubles). Each player uses a strung racquet to
strike a hollow rubber ball covered with felt (most of the time Optic
Yellow, but can be any color or even two-tone) over a net into the
opponent's court.
The modern game of tennis originated in the United Kingdom in the late
19th century as "lawn tennis" and had heavy connections to the ancient
game of real tennis. After its creation, tennis spread throughout the
upper-class English-speaking population before spreading around the
world. Tennis is an Olympic sport and is played at all levels of society
at all ages. The sport can be played by anyone who can hold a racket,
including people in wheelchairs. In the United States, there is a
collegiate circuit organized by the National Collegiate Athletics
Association.
Except for the adoption of the tie-breaker in the 1970s, the rules of
tennis have changed very little since the 1890s. A recent addition to
professional tennis has been the adoption of "instant replay" technology
coupled with a point challenge system, which allows a player to
challenge the official call of a point.
Another, however informal, tennis format is called "Kiwi doubles",
"Canadian doubles" or "cut-throat". This involves three players, with
one person playing a doubles team. The single player gets to utilize the
alleys normally reserved only for a doubles team. Conversely, the
doubles team does not use the alleys when executing a shot. The scoring
is the same as a regular game. This format is not sanctioned by any
official body and is only played when a fourth player is not available
for normal doubles.
"Australian doubles," another informal and unsanctioned form of tennis,
is played with similar rules to the "Kiwi" style, only in this version,
players rotate court position after each game. As such, each player
plays doubles and singles over the course of a match, with the singles
player always serving. Scoring styles vary, but one popular method is to
assign a value of 2 points to each game, with the server taking both
points if he or she holds serve, and the doubles team each taking one if
they break.
Wheelchair tennis can be played by able-bodied players as well as people
who require a wheelchair for mobility. An extra bounce is permitted.
This rule makes it possible to have mixed wheelchair and able-bodied
matches. It is possible for a doubles team to consist of a wheelchair
player and an able-bodied player (referred to as "one-up, one-down"), or
for a wheelchair player to play against an able-bodied player. In such
cases, the extra bounce is permitted for the wheelchair users only.
In tennis, a player uses different
strategies that both enhance his own strengths and exploit his
opponent's weaknesses in order to gain the advantage and win more
points. Players commonly specialize in a certain style of play, focusing
on what they do best as a means of beating their opponents. Based on
their style, players generally fit into one of three types: baseliners,
volleyers and all-court players. A baseliner plays from the back of the
tennis court, around the baseline, preferring to trade groundstrokes
rather than to come up to the net (except in certain situations). A
volleyer tries to approach the net and hit volleys, putting pressure on
the opponent. All-court players fall somewhere in between. A tennis
player usually determines his/her strategies based on his/her
weaknesses. For example, most players have a stronger forehand,
therefore they will hit forehands inside out to their opponents. |
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