Are you any good at athletics? They are physical competitions that test your stamina, fitness level and skill.
I am not very athletic.  I prefer to read.
I'm not either, but they form the bulk of sport activities.
I enjoy watching some sports.  My son played basketball in high school and I really enjoyed watching.
Yeah some are fun to watch, I can't get into basketball though. Athletics really became organized long ago in the late 19th century with the Amateur Athletic Union in the US.