horse race noun
plural ∼ races [count] 1 : an event in which horses race and people bet on which horse will win 2 chiefly US : a close contest
▪ The election is sure to become a horse race by early summer.
▪ The election is sure to become a horse race by early summer.
— horse·rac·ing /ˈhoɚsˌreɪsɪŋ/ noun [noncount]
▪ He lost a lot of money betting on horseracing.
▪ He lost a lot of money betting on horseracing.
