Betting Strategies for Roulette · Even-money play · 7 min

Red / Black Strategy for Roulette

Most systems dey build on red/black becos na di closest tin to coin flip for di table.

Short answer

Red dey win 48.65% of spins, no be 50%. Any roulette red/black strategy wey dey count on balance between di two colours dey jam di 2.70% gap every spin.

p(red)
48.65%
p(10 reds)
0.074%
edge
2.70%
with la partage
1.35%

To follow streaks and to go against dem

To bet di colour wey just win (“ride di streak”) or di colour wey just lose (“im time don reach”) get di same expected valuemathsExpected valueDi average result for each bet for di long run. −1/37 of di stake for every standard European bet.Read di whole tin →: −2.70% of di stake. Di wheel no sabi wetin e just do. For long session, person wey dey follow streak and person wey dey go against streak go get different sequences of wins and losses and di same average result, becos every bet wey any of dem put get 18/37 chance to win.

Probability of run of k reds wey start now%
1 wey follow each oda
48.65%
2 wey follow each oda
23.67%
3 wey follow each oda
11.51%
4 wey follow each oda
5.60%
5 wey follow each oda
2.72%
6 wey follow each oda
1.33%
7 wey follow each oda
0.645%
8 wey follow each oda
0.314%
9 wey follow each oda
0.153%
10 wey follow each oda
0.074%
%
024.3248.65%
(18/37)ᵏ for one single run wey start now. For long session, di chance sey run like dat go show somewhere high far pass.
One player dey follow di streak, di oda one dey bet against am; di same wheel dey charge both of dem di same.

Myth: Some Numbers Don Due

Wetin 200-spin session dey carry

Run of five or more of one colour dey show somewhere for 200-spin session about 95% of di time; run of eight or more about 40% of di time; ten or more about 12%. Players wey dey bet against streaks dey meet dis runs every night and dem dey remember di ones wey break dem. Players wey dey bet with streaks dey remember di ones wey pay. Both of dem dey describe di same wheel.

di longest run of one colour for 200 spinsprobability sey e go show
5 or more≈ 95%
6 or more≈ 75%
7 or more≈ 55%
8 or more≈ 40%
10 or more≈ 12%
12 or more≈ 3%
Approximate, from simulation for fair wheel. Long runs na normal tin for random sequences, no be evidence of anytin.

Roulette colour strategy: progressions and rules to switch

Everytin for di Strategy section fit run on redbetRedEven-money bet on di 18 red numbers. For French: rouge.Read di whole tin →/blackbetBlackEven-money bet for di 18 black numbers. For French: noir.Read di whole tin →: MartingalestrategyMartingaleProgression wey dey double di bet afta every loss. Check di Strategy section to see wetin e dey do and wetin e no dey do.Read di whole tin →, FibonaccistrategyFibonacciProgression wey dey follow di sequence 1, 1, 2, 3, 5, 8, 13…: one step forward afta you lose, two steps back afta you win.Read di whole tin →, D’Alembert, LabouchèrestrategyLabouchèreCancellation system: write one line of numbers, bet di total of di two ends, cancel dem afta you win, add di stake wey you lose afta you lose.Read di whole tin →, ParolistrategyParoliPositive progression: double afta you win, start again afta you lose or afta three wins one afta di oda. Dem also dey call am: reverse Martingale.Read di whole tin →. Some systems dey add rules wey concern colour, like to switch colour afta two losses or to bet di colour wey show less for di last twenty spins. Di additions no dey harm and dem no dey help; di progressionstrategyProgressionAny rule wey dey change di stake based on di results wey don pass. Negative progressions dey raise am afta losses, positive ones afta wins.Read di whole tin → wey dey under dey decide di shape of di session, and di edge dey decide im mean.

Fibonacci Strategy for RouletteLabouchère Strategy for Roulette

Where to play am

If you wan play even-money betsbetEven-money betRed/black, odd/even, high/low. 18 numbers, e dey pay 1:1.Read di whole tin →, la partageruleLa partageFrench rule: when zero come out, dem go return half of even-money stake. E dey cut di house edge for dose bets into half, to 1.35%.Read di whole tin → or en prisonruleEn prisonFrench rule: when zero come out, dem go hold even-money bet for di next spin instead make e lose. E dey cut di house edge for dose bets into half.Read di whole tin → table dey cut your expected lossmathsExpected lossExpected value times di total moni wey you bet; di average amount wey you go lose for one session or one period.Read di whole tin → into half, from 2.70% to 1.35% of turnovermoniTurnoverDi total moni wey you bet for one session or one period, including winnings wey you bet again. Dem also dey call am: handle, action.Read di whole tin →. Na di only “strategy” for dis page wey dey change number. For $10 × 100 spin session, na di difference between expected −$27 and −$13.50.

Expected loss for $10 bets on red, 100 spins$
French table (wey get la partage)
$13.51
European table
$27.03
American table
$52.63
$
026.32$52.63

En Prison Rule for Roulette

Red/black and di Monte Carlo fallacy

Di 26 blacks of 1913 na di story wey popular, wey we tell for di gambler fallacy page. Di useful part of di story no be sey di run happen, wey must happen somewhere at last, but sey di casino make plenty moni from players wey dey sure sey e no fit continue. To dey sure about di next spin na di one tin wey di wheel no dey ever sell.

Roulette for Monte Carlo

Simulator · Flat bet

2,000 sessions of even-money bets from $1,000 bankroll.

Base bet $10 · table limit $500 · 100 spins for each session

How di session results spreadloss ← | → profit
−$440$0+$280
put mouse on top bar · red bars na sessions wey lose, green na di ones wey win, di pale bar dey cross $0
sessions wey get profit
34.5%
di median result
−$20
di mean result
−$30.12
lose everytin
0.0%
5th percentile
−$200
median of di biggest drop
−$120

Questions wey pipo dey ask

Red or black better?

Dem be di same. 18 numbers each.

Make I switch colours?

E no dey change anytin. Pick one for di evening if e go help you follow di results.

To bet both red and black dey lose only for zero?

Yes, and e no dey win anytin oda time. Na bet wey dey lose 2.70% of di time and e no dey ever win: EV −2.70% of di total, like everytin else, with no upside at all.

Small laugh

To follow streak or to go against am: di same wheel, di same 2.70%.

To follow streak or to go against am: di same wheel, di same 2.70%.

Sources

  1. RouletteDoc. Short look at all di roulette strategies. https://roulettedoc.com/strategy
  2. Roulette77. Short look at all di roulette strategies. https://roulette77.us/strategies
  3. Ethier, S. N. The Doctrine of Chances: Probabilistic Aspects of Gambling. Springer, 2010. Chapter 13, wey tok about roulette.
  4. Feller, W. An Introduction to Probability Theory and Its Applications, Vol. 1. Wiley, 3rd ed., 1968. Gambler ruin, chapter XIV.
we check am 2026-09-28model: European wheel, single zerohow we work am ↗where we get am ↗