This is the 601st most frequent Serbian word.
спортских
The Serbian word "спортских" means "sports" (as an adjective, plural genitive or locative form).
Here, 'спортских' is used as an adjective describing the type of cars, specifically 'sports cars', thus modifying the noun 'аутомобила' (cars).
Одлазимо на сајам спортских аутомобила.
We are going to the sports car fair.
In this sentence, 'спортских' qualifies the type of shoes, referring to 'sports shoes', and it matches the noun 'ципела' (shoes) in gender, number, and case.
Купио је пар спортских ципела.
He bought a pair of sports shoes.
Here, 'спортских' describes the type of events, 'спорских догађаја' (sporting events), and is used in the genitive plural to agree grammatically with 'догађаја' (events).