Superfecta Box\n\n You play four horses. They must finish first, second, third, and fourth in ANY order. Since this has multiple wagers in combination, it is aR$1 minimum wager at most tracks and some even go as low as 10 cents for the minimum!
The best 4-bet bluffing hands are suited Ax and Kx hands that can not profitably call the 3-bet. They have the best blockers to our opponent's continuing range.