n. — Games
a bet that selects the first and second horses to finish in a race.
Type: 1. Origin — The national institution supervising horse betting defines exactor as 'a type of bet on a race to select, in the correct order, the first two horses in the official result' (see Justice Laws Canada reference). An exactor bet is one of many choices, alongside other types of bets such as win, place, show or triactor (see the 2005 quotation). Exactor is listed as a variant of the North American term exacta (see AHD-5 and OED-3, s.v. exacta) and the US term "exacta" (see COD-2, s.v. "exacta"). See also COD-2, s.v. "exactor", which is marked as "Cdn".