Making a vertical bet on a horse race means you are attempting to predict multiple placings – not just the horse who is going to win – in a single race. That can be an exacta, which requires picking the top two finishers; the trifecta, picking the top three finishers; the superfecta, picking the top four finishers, or the Super-Hi 5, picking the top five finishers.
You must predict the finish in the correct order, so many players will use “box” bets that automatically cover various possible outcomes. In other words, a $1 trifecta using the 3, 7 and 9 horses costs $1, but they have to finish in that exact order. A $1 trifecta box using those same three horses costs $6, but as long as they finish in the top three, you will collect on your ticket no matter the order they finish.