Marathon Race ;
No, it could not be considered a sport, just like chess, checkers, and a variety of other board games could never be viewed as a sport.
yes it is considered a sport
snooker
swimming
Yes, Bass and Trout could be considered sports fish.
The answer is Darts
Bowling has long been considered a true sport. There are professionals that earn their living by playing the sport. There are local, regional, national and international competitions. There are naysayers that feel that if a sport is not in the Olympics, then it isn't considered a real sport. However there are sports, such as Squash and Cricket not in the Olympics. And there are sports that deal with placement, such as Curling that are in the Olympics.
Yes, water skiing is considered a sport.
Yes, Video games are considered a sport.
Trampolining.
Volleyball is a sport.