Independent NZ casino desk · New Zealand Gambling Helpline 0800 654 655 · R20
Online Casino Guideonlinecasinoguide.co.nz
HomeOnline Roulette GuideRoulette Strategy Guide
Section

Roulette Strategy Guide

Last updated Checked against NZ rules
Roulette Strategy

There are many different strategies that can be employed when playing roulette. However, it is important to remember that these are betting strategies designed to help you to manage your bankroll effectively and to maximise your playing time.

Joo Casino lobby, first screen
Joo Casino lobby — our own screenshot, 22 September 2026.

Strategies are not intended as means of predicting which numbers will come up next, nor are they systems based strictly on the laws of probability. That is something roulette strategies can not do!

Online roulette for New Zealand players

12 casinos, listed with the welcome terms each one publishes for New Zealand. Checked . How every brand is checked.

  1. 01Cashed CasinoRoulette tablesChecked
    Visit site20+ · T&Cs apply
    Welcome package100% up to NZ$1,000+ 200 free spins
    Min depositNZ$20
    Wagering35x cash / 40x spins
    Online since2024
    Offer terms
    • Offer: Welcome
    • Match: 100%
    • Up to: NZ$1,000
    • Free spins: 200
    • Minimum deposit: NZ$20
    • Wagering: 35x cash / 40x spins
    Why it is on the list
    • Roulette tables
    • Trading since 2024
    • 24 game categories on the NZ account
    • Deposit options include Aktia, Alandsbanken, Apple Pay
    • Balance held in NZD
  2. 02Joo CasinoRoulette tablesChecked
    Visit site20+ · T&Cs apply
    Welcome package200% up to NZ$3,000+ 200 free spins
    Min depositNZ$30
    Wagering50x
    Online since2018
    Offer terms
    • Offer: Welcome
    • Match: 200%
    • Up to: NZ$3,000
    • Free spins: 200
    • Minimum deposit: NZ$30
    • Wagering: 50x
    Why it is on the list
    • Roulette tables
    • Trading since 2018
    • Full game catalogue on the NZ account
    • Deposit options include AstroPay, AstroPay Card, Bank Transfer
    • Balance held in NZD
  3. 03N1Bet CasinoRoulette tablesChecked
    Visit site20+ · T&Cs apply
    Welcome package100% up to NZ$10,000+ 200 free spins
    Min depositNZ$30
    Wagering50x
    Online since2021
    Offer terms
    • Offer: Welcome
    • Match: 100%
    • Up to: NZ$10,000
    • Free spins: 200
    • Minimum deposit: NZ$30
    • Wagering: 50x
    Why it is on the list
    • Roulette tables
    • Trading since 2021
    • Full game catalogue on the NZ account
    • Deposit options include AstroPay, Bank Transfer, Binance Pay
    • Balance held in NZD
  4. 04Bizzo CasinoRoulette tablesChecked
    Visit site20+ · T&Cs apply
    Welcome package125% up to NZ$2,500+ 125 free spins
    Min depositNZ$25
    Wagering40x
    Online since2021
    Offer terms
    • Offer: Welcome
    • Match: 125%
    • Up to: NZ$2,500
    • Free spins: 125
    • Minimum deposit: NZ$25
    • Wagering: 40x
    Why it is on the list
    • Roulette tables
    • Listed by 1 independent review sites we track
    • Trading since 2021
    • 10 game categories on the NZ account
    • Deposit options include AstroPay Card, Bitcoin, CashtoCode
  5. 05Zotabet CasinoRoulette tablesChecked
    Visit site20+ · T&Cs apply
    Welcome package100% up to NZ$2,000+ 300 free spins
    Online since2022
    Offer terms
    • Offer: Welcome
    • Match: 100%
    • Up to: NZ$2,000
    • Free spins: 300
    Why it is on the list
    • Roulette tables
    • Trading since 2022
    • Full game catalogue on the NZ account
    • Deposit options include BLIK, Bank Transfer, Bank Wire Transfer
    • Balance held in NZD
  6. 0620bet CasinoRoulette tablesChecked
    Visit site20+ · T&Cs apply
    Welcome package100% up to NZ$200+ 120 free spins
    Min depositNZ$20
    Wagering40x
    Online since2020
    Offer terms
    • Offer: Welcome
    • Match: 100%
    • Up to: NZ$200
    • Free spins: 120
    • Minimum deposit: NZ$20
    • Wagering: 40x
    Why it is on the list
    • Roulette tables
    • Trading since 2020
    • 12 game categories on the NZ account
    • Deposit options include AstroPay Card, Binance, Bitcoin
    • Balance held in NZD
  7. 07National CasinoRoulette tablesChecked
    Visit site20+ · T&Cs apply
    Welcome package100% up to NZ$500+ 100 free spins
    Wagering40x
    Online since2020
    Offer terms
    • Offer: Welcome
    • Match: 100%
    • Up to: NZ$500
    • Free spins: 100
    • Wagering: 40x
    Why it is on the list
    • Roulette tables
    • Trading since 2020
    • 26 game categories on the NZ account
    • Deposit options include Apple Pay, AstroPay, AstroPay Card
    • Balance held in NZD
  8. 08PowBet CasinoRoulette tablesChecked
    Visit site20+ · T&Cs apply
    Welcome package100% up to NZ$1,000+ 200 free spins
    Min depositNZ$20
    Wagering35x
    Online since2021
    Offer terms
    • Offer: Welcome
    • Match: 100%
    • Up to: NZ$1,000
    • Free spins: 200
    • Minimum deposit: NZ$20
    • Wagering: 35x
    Why it is on the list
    • Roulette tables
    • Trading since 2021
    • 26 game categories on the NZ account
    • Deposit options include Aktia, Alandsbanken, American Express
    • Balance held in NZD
  9. 09All Slots CasinoRoulette tablesChecked
    Visit site20+ · T&Cs apply
    Welcome package100% up to NZ$1,500Read our All Slots Casino review
    Min depositNZ$5
    Wagering35x
    Online since1999
    Offer terms
    • Offer: Welcome
    • Match: 100%
    • Up to: NZ$1,500
    • Minimum deposit: NZ$5
    • Wagering: 35x
    Why it is on the list
    • Roulette tables
    • Listed by 1 independent review sites we track
    • Trading since 1999
    • 29 game categories on the NZ account
    • Deposit options include Abaqoos, Apple Pay, Bank Transfer
  10. 10TonyBet CasinoRoulette tablesChecked
    Visit site20+ · T&Cs apply
    Welcome package100% up to NZ$1,500+ 150 free spins
    Min depositNZ$35
    Wagering30x
    Online since2009
    Offer terms
    • Offer: Welcome
    • Match: 100%
    • Up to: NZ$1,500
    • Free spins: 150
    • Minimum deposit: NZ$35
    • Wagering: 30x
    Why it is on the list
    • Roulette tables
    • Trading since 2009
    • Full game catalogue on the NZ account
    • Deposit options include AstroPay, Bank Transfer, Bitcoin
    • Balance held in NZD
  11. 11Rizk CasinoRoulette tablesChecked
    Visit site20+ · T&Cs apply
    Welcome package100% up to NZ$2,000+ 50 free spinsRead our Rizk Casino review
    Online since2016
    Offer terms
    • Offer: Welcome
    • Match: 100%
    • Up to: NZ$2,000
    • Free spins: 50
    Why it is on the list
    • Roulette tables
    • Trading since 2016
    • 25 game categories on the NZ account
    • Deposit options include A-bon, Aircash, Apple Pay
    • Balance held in NZD
  12. 12Betway CasinoRoulette tablesChecked
    Visit site20+ · T&Cs apply
    Welcome package100% up to NZ$2,000Read our Betway Casino review
    Min depositNZ$20
    Wagering50x
    Online since2006
    Offer terms
    • Offer: Welcome
    • Match: 100%
    • Up to: NZ$2,000
    • Minimum deposit: NZ$20
    • Wagering: 50x
    Why it is on the list
    • Roulette tables
    • Trading since 2006
    • Full game catalogue on the NZ account
    • Deposit options include AstroPay, BLIK, Bank Transfer
    • Balance held in NZD

Order is ours and the operators listed pay us a commission when you open an account; that does not change the figures above, which come from the operator pages and are re-checked on the date shown. Gambling is entertainment, not income: play with money you can lose, 20+ only. Free, confidential help in New Zealand — Gambling Helpline 0800 654 655.

Three of the most enduring roulette strategies are the D’Alembert System, the Fibonacci System, and the Labouchére System, all designed to help players to approach wagering with clear goals.

The d’Alembert System was devised to be used solely on even money bets and is intended to prevent players from suffering sudden heavy losses. The system involves reducing or increasing the size of wagers in response to wins and losses. After a losing spin, the wager size is increased by 1 unit, while after a winning spin it is decreased by 1 unit.

The Labouchére System requires a player to establish a predetermined amount of profit that they are seeking to win. Wagers are then made systematically on even money outside bets so as to try to achieve this sum.

Using the Labouchére System, a player decides that he wants to make 20 units of profit over a session of play. He then writes down a sequence of numbers that total 20 e.g. 1, 2, 2, 3, 3, 4, 5. The first bet would be the sum of the two numbers at either end of the sequence i.e. 1 + 5 = 6 units. If the wager wins, the player crosses these number off of his list. His next bet would be the sum of the two end numbers once more i.e. 2 + 4 = 6 units. Each subsequent winning bet sees two numbers crossed out, while each losing bet means a further number is added. This continues until all the numbers in the sequence have been crossed out or the player’s bankroll has gone.

The Fibonacci System takes as its basis the sequence of numbers of this name, where the next number in the sequence is the sum of the previous two i.e. 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, etc. In this system, this sequence of numbers is used to determine the size of a player’s wagers; a losing bet sees the player’s bet increase in size by moving on to the next number in the sequence, while a winning spin sees his wager decrease as he move back along the sequence by two numbers.

In the Martingale System, a player doubles his bet after a losing spin, and returns to his original size bet after each winning spin. Read more about this Martingale strategy on wikipedia.

The Inside Bet System focuses only on inside bets, not on single numbers, black/red, or odd/even. It uses multiple number bets, meaning that the chances of a winning spin are increased, although of course the odds are correspondingly lower.

Roulette Strategy — illustration 1The Parlay System requires a player to fix a predetermined sum that they are trying to win. It involves re-betting the total sum gained from any win in a sequence of wagers designed to reach the desired profit level in as few spins as possible.

The Adrenotrends System works by attempting to capitalise on runs of the same colour. This system involves a player wagering on the colour that won on the previous spin. Then, after this spin, he takes a turn out to observe which colour wins, and then bets on that on the following spin.

The Cancelling Bet System involves players attempting to win a set number of units in a session by adjusting the size of their bets according to a predetermined sequence of numbers. In the Cancelling Bet System, a player doesn’t have the same flexibility as in the Labouchére System, as all the values in the sequence of numbers are ones.

The Grind System involves a systematic accumulation of profit, one unit at a time. This progressive system is centred around cycles of spins—a cycle ends when 1 unit profit has been won. In this system, bet size is increased after a win and remains the same after a loss, but any increased bet size should not result in a profit of more than 1 unit; if this were to be the case, the bet size should not be raised.

These strategies, while being very different, are all designed to prevent a player from making impulse betting decisions by giving structure to their wagers. None are designed to guarantee profits at the roulette table, but rather they can help you to maintain a bankroll for longer.