Is billiards a sport? chess?

Personally, to me Billiards is a form of sport. Not so much chess, which is more of a mind game. Billiards is an activity that requires physical movements much like other sports for example, tennis; however, the energy used to do billiards is far less than of tennis. Billiards to me is a very exciting sport that requires both skill, and mind. For a few months in my junior year, I literally go to “Ace,” a pool bar across a McDonald gas station in Garapan, Saipan, every weekend with my friends. I nearly perfected my accuracy to always striking the appropriate ball, occasionally mistakes do occur. I am a person that play’s both billiards and chess, which is why I believe I should at least have in say between the connection the two and why billiards is considered a sport.
Why say it’s a sport? Because, the competitors treat it like it is. All over the world, people bet on billiards, whether money if involved or not, it is still considered by most people a sport. Also, people sweat while playing it. In my opinion, whenever the host of players sweat, it is most likely to be a sport, unless the area is hot. For example, playing chess in a room without air conditioning, that is just wrong.
The reason why chess in my definition is not a sport, and should not be considered in the same category in billiards is it’s simple. The category of strategy games includes chess with other board games turn into video or computer games. Sports itself have its own category, I’ve noticed that billiards (pool) is placed into the category of sports, but that is just how I remembered, I could be wrong. I’ve never really paid much attention to the category of billiards, I play the sport but I don’t play the video game version. However, chess on the other hand, I play both the real thing and the computer game.
From time to time, I still go back to play billiards. Every once in a while, when my friends and I gather for special events, such as a birthday or some events, we almost always go to play billiards and every time we play, the feeling of nervousness grabs hold, simply because we bet on dumb things when the opponent loses. The seriousness of the game is what interests me the most.
When I was young, I’ve never thought I would play such a boring sport, it wasn’t until later that I found out it was one of my favorite hobbies. I think what motivated me to play the sport in the first place has something to do with my grandmother. Before I knew the sport, she watched this pool tournament show in Taiwan, whenever it was that time, she would change the cartoons we were watching, we didn’t like it but we had to because, in any Asian tradition, respecting the elders is the most important. Plus, she was my grandmother.
My sister and I would always be upset, but as I remember, she always laughed when watching it. I used to think that it was boring, even till this day I don’t know why she had so much fun watching it. I heard from my father that my grandmother used to know absolutely nothing about pool, but as she watched she learned. I always feel that my interest in billiards has some connection with her. I don’t think there is anything funny about it, but it could be that the host speaker of the show was just funny whenever a player makes a mistake.