boat race; hydroplane racing; kyōtei
Refers specifically to the Japanese professional hydroplane racing sport, which is also a popular form of public gambling. Often translated as 'boat race' but distinct from general boat racing.
I went to the kyōtei stadium on the weekend and watched the races.
Kyōtei is one of the public gambling sports.
My father goes to the boat races every weekend.
He claims he made a fortune betting on boat races.
My friend bets a lot of money on the boat races every time.