It’s a craft that only a small layer of professionals can do, which we try to develop as much as we can with our cycles of articles about the craft. But in this review it’s more of an amateur betting theme. Assembling multi-folds, especially large ones, is clearly not a method in the arsenal of professionals. Nevertheless, there are plenty of express bets that players do. It is often the case that just one or two minus outcomes lead to a losing bet. This is a shame. As a result of such strikes, some players start to look towards betting systems. The reason is that they give some manoeuvre, an opportunity to make a profit, or stay with their own, even with a certain number of losses among the components of the system. In this article we will compare expresses and systems, pointing out their advantages and disadvantages relative to each other and to single betting. We are sure that our verdict will help you decide whether to get involved with these directions, or go for other vectors of development in betting.

**Parlay and Parlay systems**

So, a Parlay bet involves combining two or more events from different matches into one complex. The odds are multiplied as a result of such a combination. However, as soon as one of the components loses, the whole structure loses. Obviously, we are dealing here with both high risks and the prospect of making a big profit from a relatively small amount of money played. The task is to determine the degree of these risks and compare them with the situation in systems and single betting. Of course, even with the same total odds, expresses can be different in complexity, and the risks can and should be worked with and lowered. However, these are topics for other publications.

A betting system involves some dimension. The simplest system is “two out of three”. That is, three outcomes are chosen and combined. In fact, these three outcomes are combined into three doubles. That is, the quotes are multiplied in pairs. If all three components win, then all three components of the parlay go in. If one outcome loses, it destroys two of the three, but the third comes in, making up for some of the losses, and at some odds will make a profit. There are systems with different dimensions. We’ll start with the simplest one and then move on to more complex ones.

**Examples of express bets**

Let’s take three outcomes with the odds 1.73-1.74 for our example. We’ll take 1.74. You will see later why that value was chosen.

A triplet express of these events will give a total:

- 1.74 * 1.74 * 1.74 = 5.27

Let’s say we bet $300:

- 300 * 5.27 = 1 581

If from the same three events to collect a system with the size “2-3”, then on each double will be distributed on $100 Get at winning of all three components following profit:

- 3 * (1.74 * 1.74 * 100) = 908

The difference is essential. If we take the profit of the Parlay as 100%, the system brings 42.6% less profit with absolutely the same betting result.

In case one of the three bets loses, the parlay completely goes bust. One of the three doubles plays out of the system:

- 100 * 1.74 * 1.74 = 303

So we stay with our bets and do not lose anything. That is, for the “2-3” dimension, it is the quotation around 1.73-1.74 that is the break-even line. As can be easily guessed, any other system of different dimensions also has such a mark. If you are going to delve into this subject in earnest, you should calculate these bars. Naturally, all odds higher than 1.74 will already bring profit, even if only two of the three are played. If you use lower odds for this dimension, only a fraction of the betting amount will be recouped.

For example, three events with odds of 2.45. If even two of them play, we double up:

- 100 * 2.45 * 2.45 = 600

If we take 1.22-1.23, then 2 out of 3 will return to the player half of the stake.

- 100 * 1.22 * 1.23 = 150

In case of losing two bets out of three, or three out of three, both the system and the parlay will obviously lose to zero.

The intermediate conclusions are quite obvious. Systems give some insurance. If the size and odds are picked correctly, you can stay on your own or make a small profit, even after losing one bet. If you choose big dimensions then there are variants of getting some profit in case of “2-3” and more losses.

The price for such insurance becomes the specified drawdown of profit. We will know if it is worth it after making calculations. For now let us dive a little more into the world of systems.