What is a sport?

So I decided i wanted to hone the meaning of the word sport. As of right now it is defined as anything that requires physical prowess meaning anything that is a skill of sorts and requires training. I do not think that sewing is a sport nor baseball for that matter. So here is the new definition of sport.

1. Physical prowess must be obtained. (a form of physical fitness must be obtained as well, chess is not a sport)

2. There must be a way of scoring.

3. It has to be standardized. (meaning the way you score is the same anywhere you go in that particular league)

Let me clear things up a little more. Baseball is not a sport. How long is a major league Home run? my point exactly! it isn't a sport. (as defined by me) Neither is golf for that matter. now for those who are saying that not all basketball courts are the same everywhere you go or that you can play football on any size field are completely right but those games are not regulated by their respective leagues and are therefore classified as "pick-up" games and are not linked directly with that specific sport. Now if that size field or court were regulated, meaning were deemed appropriate by the said federation then it would be linked to that sport. For those of you who are saying you can play on different types of fields (Synthetic, grass, clay) it still meets the standardized scoring. a football field will always be a hundred yards from end zone to end zone, the free throw line is 15 ft away from the backboard so the system of scoring is standardized. I realize some of you will argue but it doesn't matter. this is my definition and nothing can change that.