Other systems like the Caro System also talk about single-number bets (but you won´t actually play them!). If your number drops in before 35 spins have passed, you are in profit. There is a strategy called the Pivot Roulette System where you bet one number- also know as the Makarov System (flat betting) or a selection of numbers, and hope that they drop in within 35 spins (kind of like playing the lottery on a roulette wheel this one). This most famous of the inside roulette bets – betting on one number and hoping for it to come in – is a pretty risky strategy, so most people try and cover more of the table with low bets on multiple numbers. Thay are not as quick to play of course, which is fine on a virtual wheel, but if you are playing a live game, you might feel the time pressure when placing your bets. The Straight Up is the best roulette bet if you want to fully customise your table coverage.
The table above show straight-up bets on 8, 15, 17 and 22.