busting the myth of sports = athletics.
I wouldn't say it's a myth, but it's definitely a misunderstanding of the literal definition. Gambling can be considered a sport, and a gambler can be considered a sport also(the two uses of the word sport here have different meanings).
Chess is DEFINITELY a sport, by definition, and by fact.
It's not "DEFINITELY" a sport. It's also not a fact. It's simply your opinion.
Yes. Definitelly not a sport in usual.

Is that the definition of athletics or sport ?