| 1. | St. Andrews Links, "A Brief History of the Links," StAndrews.org.uk (accessed May 23, 2012) |
| 2. | Associated Press, "Golf, Rugby Added for 2016 and 2020," ESPN.com, Oct. 9, 2009 |
| 3. | Kurt Badenhausen, "Sports' First Billion-Dollar Man," Forbes, Sep. 9, 2009 |
| 4. | US Supreme Court, PGA Tour, Inc. v. Casey Martin,, Oyez.com, May 29, 2001 |
| 5. | Notable Names Database, "Associate Press Athlete of the Year (Female)," NNDB.com, 2012 |
| 6. | "Sport," merriam-webster.com (accessed May 23, 2012) |
| 7. | "Sport," Dictionary.com (accessed May 23, 2012) |
| 8. | S.L. Kobridger, et al., "The Contribution of Golf to Daily Physical Activity Recommendations: How Many Steps Does It Take to Complete a Round of Golf?," Mayo Clinic Proceedings, Aug. 2006 |
| 9. | Neil Wolkodoff, PhD, "An Exercise in Futility?," Colorado Avid Golfer, Apr. 2009 |
| 10. | Bill Lubinger, "Inside the Life of a PGA Caddie," Cleveland Plain Dealer, Aug. 3, 2011 |
| 11. | John Koshuta, "Calories Burned During Sports," Livestrong.com, Jan. 19, 2010 |
| 12. | Brett Zarda, "Is Golf a Sport?," Popular Science, Jan. 2, 2009 |
| 13. | AJ McHardy, "Muscle Activity During the Golf Swing," British Journal of Sports Medicine, June 6, 2005 |
| 14. | Greg D. Wells, et al., "Physiological Correlates of Golf Performance," Journal of Strength & Conditioning Research, May 2009 |
| 15. | National Collegiate Athletic Association, "2011-12 NCAA Division I Manual," NCAAPublications.com, Aug. 1, 2011 |
| 16. | International College Athletic Connection, "College Golf Scholarships," Icacsports.com (accessed Apr. 6, 2012) |
| 17. | "About Nike Golf," nike.com (accessed May 23, 2012) |
| 18. | Will Tidey, "Golf's Biggest Players: Who Are the Super Agents Running the Game?," CNN.com, June 16, 2011 |
| 19. | Excel Sports Management, "Steinberg, Woods Join Excel," ExcelSM.com, July 11, 2011 |
| 20. | Tom Yantz, "Tiger Woods Bench Presses 315 Pounds in Nike Photo Shoot," Connecticut Courant, Sep. 22, 2010 |
| 21. | Jan Cabri, et al., "Golf-related Injuries: A Systematic Review," European Journal of Sport Science, Oct. 2009 |
| 22. | "Golf Injuries," The Hughston Clinic website (accessed May 23, 2012) |
| 23. | "Golf Injuries," American Orthopaedic Society for Sports Medicine website, 2008 |
| 24. | Bob Harig, "Barron First Player to Violate Policy," ESPN.com, Nov. 3, 2009 |
| 25. | Ray Stefani , "The Methodology of Officially Recognized International Sports Rating Systems," Journal of Quantitative Analysis in Sports, Oct. 2011 |
| 26. | TV Guide, tvguide.com |
| 27. | "Game," merriam-webster.com (accessed May 23, 2012) |
| 28. | "Game," Dictionary.com (accessed May 23, 2012) |
| 29. | B. E. Ainsworth, W. L. Haskell, S. D. Hermann, et al., "2011 Compendium of Physical Activities: A Second Update of Codes and MET Values," Medicine & Science in Sports & Exercise, Aug. 2011 |
| 30. | Amy Goldstein, "The National Spelling Bee's Moment," ESPN.com, June 2, 2011 |
| 31. | "Ultimate Degree of Difficulty Grid," ESPN.com (accessed May 23, 2012) |
| 32. | Geoffroy Berthelot, et al., "Exponential Growth Combined with Exponential Decline Explains Lifetime Performance Evolution in Individual and Human Species," Age, June 2011 |
| 33. | Larry Schwartz, "The Green Master," ESPN.com (accessed May 23, 2012) |
| 34. | Karen Crouse, "Woods to Return Next Week in Match-Play Event," NewYorkTimes.com, Feb. 19, 2009 |
| 35. | "Sleeping Positions," livestrong.com (accessed May 23, 2012) |
| 36. | Keith T. Palmer, "Pain in the Forearm, Wrist and Hand," Best Practice & Research Clinical Rheumatology, Feb. 2003 |
| 37. | Mark Starr, "Tiger Woods: A Golfer Still, but on Whose Team?," Global Post, Dec. 11, 2009 |
| 38. | Katie Kieffer, "Whiffed up Olympic Politics," KatieKieffer.com, Feb. 15, 2010 |
| 39. | Joe Steranka, "Golf: America's $76 Billion Economic Engine," Econclub.org, July 21, 2008 |
| 40. | Gallup, "What Is Your Favorite Sport to Watch?," Gallup.com (accessed May 23, 2012) |
| 41. | National Golf Foundation, "Frequently Asked Questions," NGF.org (accessed May 23, 2012) |
| 42. | Malcolm Campbell, "Battles Lost But a Game Won the Illustrious History of Scottish Golf," Worldgolf.com, July 16, 1999 |
| 43. | Paul Kelbie, "Chinese 'Invented Golf 1,000 Years Ago,'" The Independent, Jan. 12, 2006 |
| 44. | National Library of Scotland, "Acts of Parliament Banning Golf," Digital.nls.uk, 2010 |
| 45. | The Official Gateway to Scotland, "Making the Links," Scotland.org (accessed May 23, 2012) |
| 46. | US Golf Association (USGA), "Rules and Decisions," USGA.org (accessed May 23, 2012) |
| 47. | Joseph F. Beditz, PhD, "The Future of Private Golf Clubs in America," National Golf Foundation website, 2008 |
| 48. | Tim Delaney and Tim Madigan, The Sociology of Sports: An Introduction, 2009 |
| 49. | William J. Morgan, Ethics in Sport, 2007 |
| 50. | Lincoln Allison, The Politics of Sport, 1986 |
| 51. | Tim van Vrijaldenhoven, Reaching Beyond the Gold: The Impact of Global Events on Urban Development, 2007 |
| 52. | Milton Wayne, PhD, "Golf's Shambolic History in the Olympics," HK Golfer, Oct. 2009 |
| 53. | Bill Mallon, "Golf and the Olympic Games," LA84Foundation.org, Summer 1993 |
| 54. | "Golf News," Eagleparbirdie.com, Apr. 17, 2008 |
| 55. | EM Swift, "Is This an Olympic Sport?," Sports Illustrated website, June 6, 2005 |
| 56. | Simon Turnbull, "Golf and Rugby Turn Back Clock in Re-entering the Olympics," The Independent, Oct. 10, 2009 |
| 57. | International Olympic Committee, "Golf and Rugby to Join 2016 Olympic Programme," Olympic.org, Oct. 9, 2009 |
| 58. | Gene Wojciechowski, "Something Smells Rank in this System," ESPN.com, May 10, 2012 |
| 59. | Rolex, "Rankings," Rolexrankings.com, Sep. 2011 |
| 60. | PGA Tour, "2012 Tournaments," PGATour.com (accessed May 23, 2012) |
| 61. | Mason Levinson, "Masters TV Ratings Fall 22% as Bubba Watson Wins in Playoff," Bloomberg News, Apr. 9, 2012 |
| 62. | National Golf Foundation, "Frequently Asked Questions," NGF.org (accessed May 23, 2012) |
| 63. | Michael Fitzpatrick, "Golf's Decline in America: Work/Life Balance Is the True Culprit," Bleacherreport.com, Mar. 29, 2011 |
| 64. | "Casey Martin," pgatour.com (accessed May 23, 2012) |
| 65. | Bill Stieg, "How Rory McIlroy Won the Honda Classic," Men's Health, Mar. 2012 |
| 66. | PGA Tour, "About PGA Tour," PGATour.com (accessed May 23, 2012) |
| 67. | Karen Crouse, "Augusta National Adds First Two Female Members, New York Times, Aug. 20, 2012 |
| 68. | Antonin Scalia, Dissenting Opinion in PGA Tour, Inc. v. Casey Marti, May 29, 2001 |
| 69. | National Golf Foundation, "2015 Golf Participation in the US - A Slight Dip Tempered by Strong Positive Indicators," ngfdashboard.clubnewsmaker.org, Mar. 2016 |
| 70. | Darren Heitner, "The State of the Golf Industry in 2016," forbes.com, May 8, 2016 |
| 71. | Public Policy Polling "Sports Poll," publicpolicypolling.com, May 14, 2015 |
| 72. | Public Policy Polling "Sports Poll!," publicpolicypolling.com, May 12, 2016 |
| 73. | Golf. "The Best Photos of Golfers Smoking," golf.com (accessed June 29, 2016) |