race meeting vs sports meeting

race meeting and sports meeting both are nouns.

Word	Noun	Adjective	Verb	Adverb
race meeting	Yes	No	No	No
sports meeting	Yes	No	No	No

As nouns, sports meeting is a hypernym of race meeting; that is, sports meeting is a word with a broader meaning than race meeting:

race meeting: a regular occasion on which a number of horse races are held on the same track
sports meeting: a meeting at which a number of athletic contests are held

Other hypernyms of race meeting include meet.

race meeting (noun)	sports meeting (noun)
a regular occasion on which a number of horse races are held on the same track	a meeting at which a number of athletic contests are held