So according to your logic, darts and pool are sports. And dancing's not. BUT there are so many dance competitions. Gymnastics is very similar to dance and its an olympic sport. You can come 1st, 2nd, or 3rd in a dance competition. You can improve your personal best of the judge's score. Even line dancing has competitions which you can win. On the other side of the coin, if you're just basing it on winning, is pie eating then a sport?