Post-tensioned concrete is reinforced with a grid of high-strength sheathed steel tendons, or cables. While the concrete is curing, the cables are tensioned in both directions and held permanently under stress by anchoring them in a perimeter beam. This squeezing action keeps the concrete in compression, improving its tensile (or bending) strength. The more the concrete is squeezed together, the less likely it is that shrinkage cracks will develop or open. (See a more complete description of post-tensioning from the Post-Tensioning Institute.)

Moving, always moving, and all the time thinking and checking off: Maintain the continental grip, the base knuckle of the index finger of my left hand resting on the bevel one notch counterclockwise from the racket handle’s high noon. (Check.) Keep the racket in front and the racket head up. (Check.) Knees slightly bent. (Check.) Turn sideways quickly, and punch with your shoulder, don’t swing; and tighten your grip at the moment the ball is about to hit the strings.

Modular tile systems are the newest cushioning option on the market and offer the benefits of easy snap-together installation, long service life, and minimal maintenance. These systems feature interlocking, 12-inch square tiles made of high-impact polypropylene. The tiles rest slightly above the base surface to allow for better drainage and eliminate puddling. The downside of this cushioned comfort is the cost, which can run as high as high as $3 per square foot installed (or over $21,000 for a 60 x 120-foot tennis court).
This really depends on your experience level to be truthful. Many pro players will buy a racket they like and then get it strung with a particular type of string that they like.We don’t really recommend that for the average player. First, do a little string research, then get a racquet that is already strung with a type of string that you think will work well for your playing style. Remember, you can always restring your racquet later if you are not happy with it.
The concrete slab should be placed at a thickness of at least 4 inches, or 5 inches if subject to repeated freeze/thaw cycles. Munson's post-tensioned slabs are a minimum of 5 inches thick, with the post-tensioning cables spaced 3 feet apart. Before installing the slab, Munson lays down two layers of 10-mil polyethylene sheeting to reduce drag as the slab shrinks upon curing and to serve as a moisture-vapor barrier.
Premier events for women form the most prestigious level of events on the Women's Tennis Association Tour after the Grand Slam tournaments. These events offer the largest rewards in terms of points and prize money. Within the Premier category are Premier Mandatory, Premier 5, and Premier tournaments. The Premier events were introduced in 2009 replacing the previous Tier I and II tournament categories. Currently four tournaments are Premier Mandatory, five tournaments are Premier 5, and twelve tournaments are Premier. The first tiering system in women's tennis was introduced in 1988. At the time of its creation, only two tournaments, the Lipton International Players Championships in Florida and the German Open in Berlin, comprised the Tier I category.
Hit the ball with an “up and over” action as if you were throwing the racket at it — and, after hitting the ball, follow through with your swing. This follow through will propel you forward into the court, prepared to hit the returned shot. Good! You’re progressing well in your efforts to learn to play tennis! If you’re unhappy with your serve — perhaps even miss the ball when you swing — don’t worry; this is common when you first learn to play tennis.
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]
The player who would normally be serving after 6–6 is the one to serve first in the tiebreak, and the tiebreak is considered a service game for this player. The server begins his or her service from the deuce court and serves one point. After the first point, the serve changes to the first server's opponent. Each player then serves two consecutive points for the remainder of the tiebreak. The first of each two-point sequence starts from the server's advantage court and the second starts from the deuce court. In this way, the sum of the scores is even when the server serves from the deuce court. After every six points, the players switch ends of the court; note that the side-changes during the tiebreak will occur in the middle of a server's two-point sequence. At the end of the tiebreak, the players switch ends of the court again, since the set score is always odd (13 games).
This is a great question because it is so important to playing the game well. A grip size that is too small will cause your hand to slip on your racquet a little and a grip size that is too big will restrict your wrist movement and make it hard to adjust your grip as you play.To measure your grip you need to take out a measuring tape. Place your fingers on your hand extended out and together and then turn your palm up. With the measuring tape take a measurement from the very end of your ring finger down to the bottom crease in your palm (usually adjacent to where your thumb attaches to your palm). That will be the size grip you need to look for. It usually will fall between 4 inches and 4 ¾ inches on most people.Keep in mind that you may want to add a layer of grip tape to your new racquet like many people do. If you are one of those people then it is best to get a grip size that is one size smaller than what you measured your hand to be. This will allow for the extra grip tape without making the grip too big for your hand.
For little money you get a tennis racket of the best quality, with which a junior player can feel completely comfortable. The perfect combination of light frame and child-friendly dimensions makes the Pure Drive Junior racket the perfect racket for beginners as well as small professionals. The racquet has been specially designed to suit as many levels of play as possible.
The track at Astoria Park is currently closed for reconstruction as part of our Anchor Parks initiative to improve the quality of major parks across the city. While the track is under construction, we encourage you to join the New York Road Runners’ free weekly NYRR Open Run, which meets for walks and runs on Saturdays at 9:00 a.m. north of the parking lot, by the pool. You can also look for NYRR Mile Markers to track your distance along a measured course in the park. Please visit our Capital Projects Tracker for the latest on our construction progress.
Points are counted using ordinary numbering. The set is won by the player who has scored at least seven points in the tiebreak and at least two points more than their opponent. For example, if the score is 6 points to 5 and the player with 6 points wins the next point, they win the tiebreak (7 points to 5), as well as the set (7 games to 6). If the player with 5 points wins the point instead (for a score of 6–6), the tiebreak continues and cannot be won on the next point (7–6 or 6–7), since no player will be two points ahead. In the scoring of the set, sometimes the tiebreak points are shown as well as the game count, e.g., 710–68. Another way of listing the score of the tiebreak is to list only the loser's points. For example, if the set score is listed as 7–6(8), the tiebreak score was 10–8 (since the 8 is the loser's score, and the winner must win by two points). Similarly, 7–6(3) means the tiebreak score was 7–3.

Leading juniors are allowed to participate for their nation in the Junior Fed Cup and Davis Cup competitions. To succeed in tennis often means having to begin playing at a young age. To facilitate and nurture a junior's growth in tennis, almost all tennis playing nations have developed a junior development system. Juniors develop their play through a range of tournaments on all surfaces, accommodating all different standards of play. Talented juniors may also receive sponsorships from governing bodies or private institutions.


Moving, always moving, and all the time thinking and checking off: Maintain the continental grip, the base knuckle of the index finger of my left hand resting on the bevel one notch counterclockwise from the racket handle’s high noon. (Check.) Keep the racket in front and the racket head up. (Check.) Knees slightly bent. (Check.) Turn sideways quickly, and punch with your shoulder, don’t swing; and tighten your grip at the moment the ball is about to hit the strings.

"Tennis Court" debuted atop the New Zealand Singles Chart dated 17 June 2013, becoming Lorde's second number-one single on the chart following "Royals", which reached the top position in March 2013.[55][56] It spent 21 weeks on the chart, six of which in the top ten.[56] The single received double platinum certification from Recorded Music NZ for exceeding sales of 30,000 copies in the country.[57] "Tennis Court" was the 19th best-selling single of 2013 in New Zealand.[58] In neighbouring Australia, the single peaked at number 20 on the ARIA Singles Chart and remained on the chart for 22 weeks.[59] It was certified triple platinum by the Australian Recording Industry Association for shipments of 210,000 units.[60]
The ITF's Play and Stay campaign promotes playing on smaller courts with slower red, orange and green balls for younger children. This gives children more time and control so they can serve, rally, and score from the first lesson on courts that are sized to fit their bodies. The ITF has mandated that official competition for children under 10 years of age should be played on "Orange" courts 18 m (59 ft) long by 6.4 m (21 ft) wide. Competition for children under 8 years is played on "Red" courts that are 11 m (36 ft) long and 5.5 m (18 ft) wide. The net is always 0.8 m high in the center.[4]

On 21 May 1881, the oldest nationwide tennis organization in the world[20] was formed, the United States National Lawn Tennis Association (now the United States Tennis Association) in order to standardize the rules and organize competitions.[21] The U.S. National Men's Singles Championship, now the US Open, was first held in 1881 at the Newport Casino, Newport, Rhode Island.[22] The U.S. National Women's Singles Championships were first held in 1887 in Philadelphia.[23]
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