quinella

noun

a form of betting, esp. in horse racing, in which the bettor, to win, must pick the first two finishers, in whichever order they finish

Etymology: AmSp quiniela, orig. a ball game with five players (later a wager or combination of wagers on the scores of the players; hence any wager against the house) < quina, five (on dice) < L quini, five each < quinque, five