Trifecta Key Box Example:\n\n aR$1 Trifecta Key Box: 1,3/5,7 would costR$12 and is made up of two trifecta bets that include a box; of 1 with 5,7 and 3 with 5,7 (the 1 AND 3 are "KEYS" and one of them must finish in 1^st, 2^nd, or 3rd to have any chance of winning, and the 5 and 7 must finish in the other 2 Trifecta spots.)

The only real weakness on the roulette wheel layout is the fact that all numbers pay the same odds. This is because they are all supposed to be equally likely, but they really aren't. The trick is to figure out a few which are less likely, and evenly bet all the others.