A golf course is the grounds on which the sport of golf is played. It consists of a series of holes, each consisting of a tee box, a fairway, the rough and other hazards, and a green with a cylindrical hole in the ground, known as a "cup". The cup holds a flagstick, known as a "pin". A standard round of golf consists of 18 holes, and as such most courses contain 18 distinct holes; however, there are many 9-hole courses and some that have holes with shared fairways or greens. There are also courses with a non-standard number of holes, such as 12 or 14.
The vast majority of golf courses have holes of varying length and difficulty that are assigned a standard score, known as par, that a proficient player should be able to achieve; this is usually three, four or five strokes. Par-3 courses consist of holes all of which have a par of three. Short courses have gained in popularity; these consist of mostly par 3 holes, but often have some short par 4 holes.
Many older courses are links, often coastal. The first golf courses were based on the topography of sand dunes and dune slacks with a ground cover of grasses, exposed to the wind and sea. Courses are private, public, or municipally owned, and typically feature a pro shop. Many private courses are found at country clubs.
History Today there are approximately 38,000-40,000 golf courses in the world, spanning 200+ countries. United States has over 40% of all golf courses in the world.
Design
Although a specialty within landscape design or landscape architecture, golf course architecture is considered a separate field of study. Some golf course designers become celebrities in their own right, such as Alister MacKenzie; others are professional golfers of high standing and demonstrated appreciation for golf course composition, such as Jack Nicklaus. The field is partially represented by the American Society of Golf Course Architects, the European Institute of Golf Course Architects, and the Society of Australian Golf Course Architects, although many of the finest golf course architects in the world choose not to become members of any such group, as associations of architects are not government-sanctioned licensing bodies, but private groups. While golf courses often follow the original landscape, some modification is unavoidable. This is increasingly the case as new courses are more likely to be sited on less optimal land. Bunkers and sand traps are always built in by architects unless the formation of such items is already in the course's natural terrain.
The layout of a course follows certain traditional principles, such as the number of holes (nine and 18 being most common), their par values, and the number of holes of each par value per course. It is also preferable to arrange greens to be close to the tee box of the next playable hole, to minimize travel distance while playing a round, and to vary the mix of shorter and longer holes. Combined with the need to package all the fairways within what is frequently a compact square or rectangular plot of land, the fairways of a course tend to form an oppositional tiling pattern. In complex areas, two holes may share the same tee box, fairway, or even green. It is also common for separate tee-off points to be positioned for men, women, and amateurs, each one respectively lying closer to the green. Eighteen-hole courses are traditionally broken down into a "front 9" (holes 1–9) and a "back 9" (holes 10–18). On older courses (especially links courses, like the Old Course at St. Andrews), the holes may be laid out in one long loop, beginning and ending at the clubhouse, and thus the front 9 is referred to on the scorecard as "out" (heading out away from clubhouse) and the back 9 as "in" (heading back in toward the clubhouse). More recent courses (and especially inland courses) tend to be routed with the front 9 and the back 9 each constituting a separate loop beginning and ending at the clubhouse. This is partly for the convenience of the players and the club, as then it is easier to play just a 9-hole round, if preferred, or stop at the clubhouse for a snack between the front 9 and the back 9.
Landscape design involves the integration of aesthetic and functional elements. The process includes the arrangement of vegetation, water features, pathways, and structural materials such as stone and wood.
New environmentally responsible design practices mean that a successful design more than harmonizes with the landscaping; it benefits the environment. A successful design also not just pleasing and playable, but is environmentally responsible.
Par
Most golf courses have only par-3, −4, and −5 holes, although some courses include par-6 holes. The Ananti CC and the Satsuki golf course in Sano, Japan, are the only courses with par-7 holes.
Par is primarily determined by the playing length of each hole from the teeing ground to the putting green. Holes are generally assigned par values between three and five, which includes a regulation number of strokes to reach the green based on the average distance a proficient golfer hits the ball, and two putts. On occasion, factors other than distance are taken into account when setting the par for a hole; these include altitude, terrain and obstacles that result in a hole playing longer or shorter than its measured distance, e.g. route is significantly uphill or downhill, or requiring play of a stroke to finish short of a body of water before hitting over it.
Under the United States Golf Association, the typical distances for the various holes from standard tees are as follows:
Men Par 3 – Under Par 4 – Par 5 – Par 6 – or longer
Women Par 3 – Under Par 4 – Par 5 – Par 6 – or longer
Features
Teeing area
The first section of every hole consists of the teeing ground, or tee-box. There is typically more than one available box where a player places his ball, each one a different distance from the hole (and possibly with a different angle of approach to the green or fairway) to provide differing difficulty. The teeing ground is generally as level as feasible, with closely mown grass very similar to that of a putting green, and most are slightly raised from the surrounding fairway.
Each tee box has two markers showing the bounds of the legal tee area. The teeing area spans the distance between the markers, and extends two-club lengths behind the markers. A golfer may stand outside the teeing area, but the ball must be placed and hit from inside it. A golfer may place his ball directly on the surface of the teeing ground (called hitting it "off the deck"), or the ball may be supported by a manufactured tee (limited to a height of four inches), or by any natural substance, such as a mound of sand placed on the teeing surface.
Fairway and rough
After the first shot from the tee ("teeing off"), the player whose ball is farthest from the green hits the ball from where it came to rest; this spot is known as its "lie". When the ball is in play and not out of bounds or in a hazard the player must play the ball as it lies. The area between the tee box and the putting green where the grass is cut even and short is called the . The area between the fairway and the out-of-bounds markers, and also between a mowed apron surrounding the green and out of bounds, is the rough; the grass there is cut higher and is often of a coarser strain than on the fairways, making roughs disadvantageous areas from which to hit. On par-3 holes, the player is expected to be able to drive the ball to the green on the first shot from the tee box. On holes longer than par 3, players are expected to require at least one additional shot to reach their greens.
While many holes are designed with a direct line-of-sight from the teeing ground to the green, a hole may bend either to the left or to the right. This is called a "dogleg", in reference to the similarity to a dog's ankle. The hole is called a "dogleg left" if the hole angles leftwards, and a "dogleg right" if the hole angles rightwards. A hole's direction may bend twice, which is called a "double dogleg".
Just as there are good-quality grasses for putting greens, there are good-quality grasses for the fairway and rough. The quality of grass influences the roll of the ball as well as the ability of the player to "take a divot" (effectively, the ability to hit down into the ball, hitting the ball first, then hitting the turf and removing a portion of it as the club continues its arc). Fairways on prestigious tours, like the PGA Tour, are cut low. Mowing heights influence the play of the course. For example, the grass heights at U.S. Open events are alternated from one hole to the next in order to make the course more difficult. One example of this is the infamous roughs at U.S. Opens, which are often 3 to 5 inches high, depending on how close to the fairway or green the section of grass will be. This makes it difficult for a player to recover after a bad shot.
Variants of grass used for fairways and roughs include bent grass, Tifway 419 Bermuda grass, rye grass, Kentucky bluegrass, and Zoysiagrass. As in putting-green grass types, not every grass type works equally well in all climate types.
Greens
The putting green, or simply the green, is an area of very closely trimmed grass on relatively even, smooth ground surrounding the hole, allowing players to make precision strokes on it. To "putt" is to play a stroke on this surface, usually with the eponymous "putter" club, which has very low loft so that the ball rolls smoothly along the ground, and hopefully into the cup. The shape and topology of the green can vary almost without limit, but for practical purposes the green is usually flatter than other areas of the course, though gentle slopes and undulations can add extra challenge to players who must account for these variations in their putting line. The green typically does not include any fully enclosed hazards such as sand or water; however, these hazards can often adjacent to the green, and depending on the shape of the green and surrounding hazards, and the location of the hole (which often changes from day to day to promote even wear of the turf of the green), there may not be a direct putting line from a point on the green to the cup.
Golfers use a method known as "reading" the green to enhance their chances of making a putt. Reading a green involves determining the speed, grain, incline, decline and tilt of the green on the line of the putt. Most putts are not struck directly at the hole, instead they must be struck to take into account the characteristics of the green to arrive at the hole at the proper angle and speed. The best players will read the green by walking around the green and studying the characteristics of the green before addressing the ball. Many golfers consider reading the green and putting to be the most difficult part of the game.
The green is typically surrounded by slightly higher grass, cut at a height between that of the green and fairway, and then by the fairway and/or rough. This longer grass surrounding the green is known as the fringe and is designed to slow and stop balls rolling along the green from an approach shot or errant putt, preventing them from exiting the green. Though putting strokes can be made on it, the higher grass can interfere with the path of the ball, so players often choose to use a lofted club such as an iron to make a "chip shot" or a "bump and run", where the ball carries in the air for a few yards and then rolls along the green like a normal putt.