While traditional sets continue until a player wins at least six games by a margin of at least two games there are some alternative set scoring formats in use. A common alternative set format is the eight or nine game pro set. Instead of playing until one player reaches six games with a margin of two games, one plays until one player wins eight or nine games with a margin of two games. A tie-break is then played at eight or nine games all. While the format is not used in modern professional matches or recognized by the ITF rules, it was supposedly used in early professional tours. It is commonly utilized in various amateur leagues and high school tennis as a shorter alternative to a best of three match, but longer than a traditional tie-break set. In addition, eight game pro sets were used during doubles for all Division I college dual matches, until the 2014–2015 season.[31]
Throughout most of lawn tennis' history, most rackets were made of laminated wood, with heads of around 65 square inches (420 cm2). A small number of them were made of metal, such as a 1920s racket by Dayton.[15] Some, rarely, also had metal strings. In the late 1960s, Wilson popularized the T-2000 steel racket with wire wound around the frame to make string loops, after having purchased the design from René Lacoste, who produced the racket first in a more limited run. It was popularized by the top American player Jimmy Connors and was also, prior to Connors using it, by Billie Jean King in her early career. Many players said it lacked control but had more power, when compared with wood frames of the period. Connors used the rarer "firm" model that had additional throat welds to increase its stiffness. In 1968 Spalding launched an aluminum racket, called The Smasher. Aluminum, though lighter and more flexible than steel, was sometimes less accurate than wood. The biggest complaint, however, was that metal rackets caused strong cases of tennis elbow, especially the kind that had holes for the strings directly in the frame, rather than using an external wire wrapper, as in the T-2000. Because of that drawback in particular, most of the top players still preferred to use wooden frames.[16]
The rackets from the Wilson Ultra series are processed in the graphite frame construction with carbon fiber, so that a power-loaded playing feeling is created. The oversize head provides good spin characteristics and the power of the club can be controlled very well via the spin. A comfortable racquet handling and a special parallel drilling technology (the strings dampen more vibrations) provide comfort.

Not all tennis racquets are meant to be used on all different kinds of court surfaces. You will have to pay attention to this when shopping for a new tennis racquet. It will probably not matter what tennis racquet you use on any surface if you are a novice tennis player but that is hardly the case if you are an intermediate or above tennis player.Some racquets are of such high quality that you can use them on any type of surface but others work best on specific types of tennis court surfaces. This will usually be noted either on the packaging description of the tennis racquet or you can most likely look it up on the manufacturer’s website too.

I focus on the student ability to improve skills in the court by having constant repetitions of drills. I also make the lesson more attractive for the students by playing with them and make them experience real game practice.  I structure my lessons with short warm up continued by certain amount of drills and finally different games applied to different situations of the game. 
The set is won by the first player (or team) to have won at least six games and at least two games more than his or her opponent. Traditionally, sets would be played until both these criteria had been met, with no maximum number of games. To shorten matches, James Van Alen created a tie-breaker system, which was widely introduced in the early 1970s. If the score reaches 6–5 (or 5–6), one further game is played. If the leading player wins this game, the set is won 7–5 (or 5–7). If the trailing player wins the game, the score is tied at 6–6 and a special tiebreaker game is played. The winner of the tiebreak wins the set by a score of 7–6 (or 6–7).
3. They often take only private lessons and play points when they play on their own – which means that they do not have enough repetitions in situations without pressure where they could automate their technique. In other words, they don’t practice enough – they only get more information in private lessons and do not groove the strokes in practice.
The impetus to use some kind of a tie-breaking procedure gained force after a monumental 1969 struggle at Wimbledon between Pancho Gonzales and Charlie Pasarell. This was a 5-set match that lasted five hours and 12 minutes and took 2 days to complete. In the fifth set the 41-year-old Gonzales won all seven match points that Pasarell had against him, twice coming back from 0–40 deficits. The final score was 22–24, 1–6, 16–14, 6–3, 11–9 for Gonzales.
In the early 1980s, "graphite" (carbon fibre) composites were introduced, and other materials were added to the composite, including ceramics, glass fibre, boron, and titanium. Some of the earliest models typically had 20% or more fiberglass, to make them more flexible. Stiff rackets were typically not preferred by most players because of their familiarity with the comfortable softness of wood. These early models tended to be very flexible and not very powerful, although they were a power upgrade over wood and metal rackets. Wilson created the Jack Kramer Pro Staff, the graphite version of the wood racket of the same name extremely popular in the late 70's and early 80's. This was the origin of the extremely influential Wilson Pro Staff 85. Chris Evert's first graphite racket was this Jack Kramer version, which had 20% fiberglass. It was not a market success and she, along with everyone else, quickly replaced it with the stiffer Pro Staff 85, which had 20% kevlar. It used the same mold and had the same braided graphite, but offered a very noticeable improvement in power. The very popular Prince original graphite, an oversize in its most popular form, was also quite influential and used by many pros, especially as juniors. Jennifer Capriati and Monica Seles, for instance, used the Prince graphite to contest their influential Wimbledon match in 1991 that has often been hailed as the beginning of the power baselining game in the WTA, although that claim is somewhat hyperbolic and is, in large part, due to the mistaken impression that the players were hitting much harder when, in fact, the rackets were more powerful. However, the very large head size, when compared with the midsize and, especially, the old "standard" size, made it easier to produce power. The racket also had an open string pattern. The Prince "original" graphite name is rather a misnomer, as it went through some significant design adjustments over its lifetime. For instance, the truly original model had a reverse teardrop head shape, something no subsequent versions had. Stiffer composite rackets, when compared with the first and second generations of graphite composites, are the contemporary standard. The last wooden racket appearing at Wimbledon appeared in 1987, long after they were abandoned by practically all professionals.[17] Borg tried to stage a comeback with his standard wood racket, after his premature retirement, but it quickly ended in failure, as the standard wood was no match when placed against a stiff midplus graphite. It is also commonly argued that Chris Evert would have been able to beat Martina Navratilova during the latter's most dominant period if she had switched from her wood racket years sooner. Additionally, the last influential wooden racket, the Prince Woodie, had layers of graphite to increase its stiffness and was an oversize. It was used by Tommy Haas, Gabriela Sabatini, and quite a few others. It offered very little power but did offer much more surface area than a standard-size wooden frame. Sabatini found it helpful, as compared with smaller rackets, due to her production of heavy topspin. The only woman to beat Martina Navratilova in 1984, Kathleen Horvath, used the Prince Woodie, one of only six losses Navratilova suffered in a three-year stretch involving 260 matches.[18]
It wasn't until the 16th century that rackets came into use, and the game began to be called "tennis", from the French term tenez, which can be translated as "hold!", "receive!" or "take!", an interjection used as a call from the server to his opponent.[6] It was popular in England and France, although the game was only played indoors where the ball could be hit off the wall. Henry VIII of England was a big fan of this game, which is now known as real tennis.[7] During the 18th and early 19th centuries, as real tennis declined, new racket sports emerged in England.[8]