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Hollandish Betting System: Everything you Should Know About the Roulette Strategy

Last updated: 05.04.2024 by Andrew Shepard

As one of the most popular roulette betting strategies, the Hollandish has gained great attention during the last few years. The reason is simple; Hollandish is one of the easiest tactics to implement. Just like the Fibonacci system, this strategy is based on outside bets like Red/Black, High/Low, or Odd/Even.

The main difference between the two methods is the amount of bets in between the bet size alteration. So, unlike Fibonacci, your bet is not dependent only on the outcome of the previous bet. In other words, the Hollandish betting system is based on altering the bet size after three bets.

Let’s start by having a deeper look at how this betting system works.

Hollandish Betting System: How Does It Work?

For the process to be easier to understand, let’s analyse how you can use this method via an example. Say you are starting with an initial wager amount of £1. After three bets, you’re required to change your bet size depending on the outcome. The stake sequence of Hollandash betting system, in this case, will be: £1, £3, £5, £7, £9, and so on.

The formula used for this stake sequence is: a0, a0+a0*2, a1+a0*2, a2+a0*2, and so on. Subsequently, if you started with an initial amount of £2, the sequence would be: £2, £6 (2+2*2), £10 (6+2*2), £14 (10+2*2), £18 (14+2*2), etc.

Now that we have analysed the formula used for the wagering amounts let’s have a deeper look at the actual process. The Hollandish betting system is based on one main principle:

If you start with a wager amount of £1, you should stick to this wager for three subsequent rounds. If after these spins, the outcome is negative (net loss), you increase the stake amount according to the formula, in this case, to £3. On the other hand, if your three spins produce a positive outcome (net profit), you have to go back to the initial stage of the sequence (£1).

This system helps you take advantage of your winning spins by returning to the start of the progression. Let’s explain this process with an example:

Hollandash System

You set £1 as the initial wager amount and decide to bet on red. The Hollandish betting system requires you to repeat this action for three spins.

  • Spins 1, 2, and 3

    In this scenario, let’s say that you win two rounds and lose one. What this means is that you won’t increase the wager amount for the next spins.

  • Spins 4, 5 and 6

    You keep the same wager amount of £1. After these next three rounds, you lose two rounds and win one.

  • Spins 7, 8, and 9

    According to the Hollandish system, now is the time to increase your wager amount according to the formula we examined above. So, for the spins 7, 8, and 9, you increase your amount to £3.

  • Spins 10, 11, and 12

    If the outcome of the previous three spins was negative once again, your wager for the next three spins should be increased to £5. On the flip side, if you win two or all three spins, you go back to your initial £1 wager amount.

It becomes evident that the Hollandish betting system isn’t very hard to understand and implement. But, how does it perform? Let’s have a look at the effectiveness of this strategy in the long run.

Testing the Hollandish System: The Strategy’s Effectiveness

As with any roulette betting system, the Hollandish system can be tested. And this is exactly what our team of specialists did. The method used for our test included the random number generator provided by Google Sheets and the Javascript programming language.

In this scenario, we used three roulette players to test how the strategy performs. All three players followed the Hollandish system’s basic rules and formula. Also, we allocated a £1000 initial bankroll for each player. The process was repeated for 501 spins for each player, as this number is a multiple of 3.

The only difference between the players was the initial wager amount. Player A started with £1, player B with £2, and player C with £3. This allowed us to create a graph that depicts the randomly generated outcomes of the Hollandish system for each player.

Hollandish System

Results for player A: Wager amount of £1

As you can see above, after 501 spins, the final bankroll for player A was £1021. The maximum amount was reached in the 385th round and was £17. For the second player, the random Google Sheets number generator proved to be more harsh.

Hollandish System

Results for player B: Wager amount of £2

Player B was also following the Hollandish strategy for 501 spins. After this process, the player ended up with a bankroll of £994 and, therefore, a total loss of £6. Finally, let’s have a look at how the Hollandish strategy performed for player C.

Hollandish System

Results for player C: Wager amount of £3

With a starting sequence amount of £3, player C was the only one that achieved a noticeable net gain after the 501 rounds. Due to this fortunate outcome, the maximum wager didn’t exceed £45. After these spins, player C ended up with £1327.

By examining the results of our experiment, we concluded that the Hollandish system doesn’t have significant risks when it comes to the bankroll. At least for these 3 players, that started with a significant bankroll of £1000.

On the flip side, the Hollandish system progression proved to be negative. This was quite evident according to the progression rates of player B, and less noticeable with player A. Finally, since the graph of player C didn’t witness a significant loss streak for multiple rounds, this negative progression wasn’t evident. After all, this is what led player C to a significant net gain.

The Hollandish System: Drawbacks and Pitfalls

As mentioned above, the Hollandish system will rarely annihilate a player’s bankroll as long as the starting wager amount is small enough compared to the bankroll (e.g., £2 to £1000). The same is true for going beyond a table’s limits. But that doesn’t mean there’s no risk of going beyond the initial bankroll amount.

At the same time, the system allows you to decrease the bets only after a winning streak. What that means is that a losing streak could result in heavy losses. On the other hand, as a progressive system, the Hollandish strategy is noticeably slow.

Wrap Up

Our testing of the Hollandish betting system hid valuable results. First of all, the experiment showcased that the progression isn’t very noticeable and the pace of this strategy is quite slow. Chances are that you won’t see a great loss or gain, even after you’ve played for several rounds.

This is particularly true for low bets. Take as an example player A. Since the initial wager was only £1, the peaks and valleys of the graph were almost invisible. On the flip side, if you opt for a high wage base (e.g. £3) the risk of a loss streak becomes higher.

Subsequently, we can safely say that the Hollandish betting system, as a strategy that is based on even-money bets, has quite low volatility. The final choice comes down to your personal playing style and preferences. In any case, you can expect a moderate net gain from this system as long as you have a noticeable bankroll (£200 or more).

In other words, this strategy is tailored to patient players who want to minimise the risk of losing their bankroll.

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