Quote:
a person trained or gifted in exercises or contests involving physical agility, stamina, or strength; a participant in a sport, exercise, or game requiring physical skill.
I noticed at the beginning someone had quoted this, but under that same definition you could pretty much classify anything as a sport.
I love Golf, but it's a game. It's not like there aren't professional games played everywhere -- Chess, Go, Starcraft, etc. But realistically speaking Golf is a game.
I should also just note that this is just my opinion. I don't see much difference in Golf and say something like Bocci Ball or Lawn Darts...even Horseshoes. It's more complex, obviously, and the technology is a lot more advanced but the concept is still the same. I wouldn't consider those games sports, and I don't consider Golf a sport either.