Golf in the United States is a $70 billion annual industry with 24.1 million players.  A 2016 poll by Public Policy Polling found that nineteen percent of Americans call themselves golf fans, down from twenty-three percent in 2015.  The debate over whether or not golf is a sport wages on the internet, in bars, amongst sportswriters, and even on the golf course.
Proponents say that golf meets the definition of "sport" found in the dictionary, requires physical exertion and coordination, and is recognized as a sport by sporting goods companies, athletic associations, fans, the media, and more. They point to golf's inclusion in the Olympics starting in 2016 as further evidence of its qualification as a sport.
Opponents say that golf better meets the definition of "game" than "sport," does not require rigorous physical activity, and can be played professionally by people who are overweight, injured, or non-athletic. They argue that golf is a game or leisure activity, and they cite golf's 112-year absence from the Olympics as proof that it is not a sport.
Early History of Golf
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Painting from around 1740 by an unknown artist, "Golfers on the links at St Andrews," thought to be the earliest depiction of golf in Britain. Source: National Library of Scotland, digital.nls.uk (accessed May 22, 2012)
The origins of golf remain somewhat murky because several countries invented games that involved hitting a ball with a club at a target. The 11th century French game "palle- mail" or "jeu de mail," and the 13th century Dutch game "kolven" are arguably predecessors to golf.  A claim has even been made that the Chinese recorded a description of the game in a text written during the Song Dynasty (960 -1279 AD). 
The invention of golf as we know it today, with the crucial aspect of hitting a ball into a hole, is generally credited to Scotland in the 1300s.  Historians say that golf was played at St. Andrews in Scotland even before the university was founded in 1411. 
In the Middle Ages, the Scots were so captivated by golf that King James II feared it was interfering with the archery practice needed to help protect Scotland against the English.  On Mar. 6, 1457, the Scottish Parliament banned golf with a decree that read, "...[I]t is ordained and the decreed that the lords and barons both spiritual and temporal should organise archery displays four times in the year. And that football and golf should be utterly condemned and stopped... [W]e ordain that [those found playing these games] be punished by the local barons and, failing them, by the King's officers."  The ban was lifted in 1502 when the Treaty of Glasgow temporarily ended the wars between Scotland and England. King James IV made the first recorded purchase of golf equipment in that same year and became an avid golfer. 
St. Andrews, the home of the Royal and Ancient Golf Club of St. Andrews (R&A), originated the 18-hole golf course in 1764 when golfers felt that some of the holes on the then-22-hole course should be consolidated. To this day, 18 holes remains the standard for a round of golf. 
In 1897, the R&A was recognized by existing golf organizations as having the authority to determine the rules of golf.  According to the official rulebook: "The Game of Golf consists of playing a ball with a club from the teeing ground into the hole by a stroke or successive strokes in accordance with the Rules."  The first golf club in America was St. Andrew’s Golf Course in Yonkers, NY, built in 1888.  The Amateur Golf Association of the United States (now called United States Golf Association, or USGA) was formed on Dec. 22, 1894. 
Definition of Sport
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Fans watch Tiger Woods tee off on the first hole of the 2010 Masters Tournament at Augusta National Golf Club. Source: "Tiger Woods' Return to the Masters Was Must-see TV, Even for Non-golf Fans," New York Daily News, Apr. 9, 2010
The question of whether golf is a sport hinges on the definition of "sport." The Merriam- Webster dictionary defines sport as "physical activity engaged in for pleasure; a particular activity (as an athletic game) so engaged in."  Dictionary.com defines it as "an athletic activity requiring skill or physical prowess and often of a competitive nature, as racing, baseball, tennis, golf, bowling, wrestling, boxing, hunting, fishing, etc." 
John C. Phillips, Professor of Sociology at the University of the Pacific, asserted that people have an instinctual idea about what "sport" means: "[I]n one sense the word sport need not be analyzed. Anyone who speaks English knows what sport is and is not."  The topic has nonetheless been subject to significant analysis. A Google search for "definition of sport" produces more than 200,000 results.
Sports philosopher Bernard Suits named four elements that distinguish sports from games. "First, it is a game of skill, which marks it off from games of chance... Second, it is a game of physical skill... Third, a sport is a game that has a wide following... Fourth, and last, a sport is a game that has achieved institutional stability..." 
Sociologists Tim Delaney and Tim Madigan defined sport as "institutionalized, structured, and sanctioned competitive activity beyond the realm of play that involves physical exertion and the use of relatively complex athletic skills." 
Lincoln Allison, Founding Director of the Centre for the Study of Sport in Society at Warwick University, noted that the definition has shifted over time. "In English, the primary meaning of the word 'sport' changed dramatically in the period after 1880. Before that date, if you picked up a book on sport... it would certainly have been about some combination of hunting, shooting or fishing..." According to Allison, the modern concept of sport began to solidify around 1930. "And yet, for all that sport can mean... the core of what people understand by sport in its serious and interesting sense can be defined briefly: sport is the institutionalisation of skill and prowess." 
Golf in the Olympics
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Female golfers at the 1900 Paris Olympics, the first year in which women competed in the Olympics and the only year women's golf was included. Source: "Moments in Olympics History Photos," NationalGeographic.com (accessed May 22, 2012)
For many, the Olympics serve as a barometer for whether an activity should be viewed as a sport.  Golf was included in the Olympics in 1900 (men and women) and 1904 (men only) before being removed. The golf events in the 1904 Olympics, held in St. Louis, Missouri, consisted of 74 American and three Canadian men.  In 1908, the golf events were canceled reportedly because of a lack of international entries and a conflict with the R&A. Subsequent years also saw a dearth of competitors that resulted in the game's continued absence from the Summer Olympic Games. 
The first major push to return golf to the international sporting competition did not come until 1992, when the Atlanta Olympic Organizing Committee announced its intent to get golf approved for the 1996 Games. The proposal was met with opposition from major golf organizations, who were reportedly concerned about having their regular tour events overshadowed. The Committee's plan to hold the event at Augusta National Golf Club prompted concern because at the time the club had a male-only membership and just one black member, and so the proposal was withdrawn.  [Editor's Note: On Aug. 20, 2012, Augusta announced that two women, former Secretary of State Condoleeza Rice and businesswoman Darla Moore, have been accepted as members for the first time in the 80-year history of the club. ]
Another bid to include golf was rejected in 2005, reportedly due to lack of support from the professional golf tours.  A Sports Illustrated poll conducted in May 2005 found that 29 percent of respondents thought golf should be added to the Olympics, second to rugby, favored by 38 percent. 
In 2009, the International Olympic Committee (IOC) members voted 63-27 to return golf to the 2016 Summer Olympics in Rio de Janeiro, Brazil. Rugby was also voted in for the first time since it was removed in 1924.  IOC President Jacques Rogge voiced his support for the decision, saying "Both golf and rugby are very popular sports with global appeal and a strong ethic. They will be great additions to the Games." 
Some people who opposed including golf said that the vote was neither a reflection of golf's merit nor an endorsement that it is a sport, but rather that the IOC wished to add golf because of megastar golfer Tiger Woods and golf’s potential for increased sponsorships and television earnings. 
PGA (Professional Golfers’ Association) of America Chief Executive Officer Joe Steranka estimated that golf’s $76 billion annual industry provides more than two million jobs and raises more than $3.5 billion for charity each year. "We are bigger than the motion picture and video recording industry, we're bigger than the newspaper publishing industry… That rolls up into 61 billion dollars of wages, makes our induced economic impact 195 billion dollars." 
The PGA of America is composed of 27,000 male and female professional golfers.  Since the Official World Golf Ranking system was established in 1986, 16 different men have held the number one spot.  Tiger Woods has been the world number one for a record total of 623 weeks in his career.  The women's comprehensive "Rolex Rankings" system has been in place since Feb. 2006, when Annika Sörenstam was named as the first female world number one. 
The winners of the men’s four Major Championships each took home more than $1.4 million in prize money last year.  About 8.1 percent of households in the top 56 US television markets watched the April 2012 Master’s Tournament on television (compared to 10.4 percent in 2011). 
As of Jan. 1, 2012, there were 15,751 golf facilities (complexes containing at least one course) in the US. Florida and California have the largest number of facilities, with 1,051 and 921, respectively.  The number of golf courses closing began to outpace the number of new courses in 2007, and 2011 saw 19 new golf course openings but 157.5 closures. 
Golf in the Supreme Court
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Professional golfer John Daly, winner of 1991 PGA Championship and 1995 British Open, smoking a cigarette while playing golf. Source: "Golfers with Girth," Golf.com (accessed May 23, 2012)
On May 29, 2001, the Supreme Court ruled 7-2 in PGA Tour, Inc. v. Martin that the PGA Tour had to allow disabled golfer Casey Martin to use a golf cart, despite the PGA's claim that "the condition of walking is a substantive rule of competition" in professional tournaments. Martin was born with Klippel- Trenaunay-Weber Syndrome, a degenerative disease that caused Martin's right leg to atrophy and made him unable to walk across a golf course. The Court noted that Martin was a "talented golfer" who won his state high school golf championship and captained the 1994 Stanford University NCAA champion golf team.
The decision, delivered by Justice John Paul Stevens, said in part "…we observe that the use of carts is not itself inconsistent with the fundamental character of the game of golf. From early on, the essence of the game has been shotmaking—using clubs to cause a ball to progress from the teeing ground to a hole some distance away with as few strokes as possible." The decision further stated that "golf is a game in which it is impossible to guarantee that… an individual's ability will be the sole determinant of the outcome. For example, changes in the weather may produce harder greens and more head winds for the tournament leader than for his closest pursuers. A lucky bounce may save a shot or two."
In the dissenting opinion , Justice Antonin Scalia asserted that the issue of whether walking is essential to the game of golf was irrelevant, but noted that "Many, indeed, consider walking to be the central feature of the game of golf hence Mark Twain’s classic criticism of the sport: 'a good walk spoiled.'" 
Casey Martin earned $206,874 over the course of his career as a professional golfer and is now the golf coach for the University of Oregon.  The debate over the fitness level required to succeed as a professional golfer continues, however. Those who say golf is a sport point to the athleticism of top golfers such as Tiger Woods and Rory McIlroy. Woods has reportedly bench pressed 315 pounds, and much has been made of McIlroy’s improved results following his commitment to become more muscular.  Those who say golf is not a sport point to the example of John Daly, a professional golfer who won two Majors even though he once weighed as much as 285 pounds and struggled with alcoholism.
Popular Science asked the question, "Is Tiger Woods proof that golf is a sport, or is John Daly confirmation to the contrary?" and determined that the answer "probably depends on whether you've got a set of clubs in the garage."