Roulette bet dem · Even-money bet · impair/pair · 7 minute

Odd / even bet inna roulette

A roulette odd/even bet cover eighteen odd or eighteen even numba. Zero a neida one.

Short ansa

It pay 1:1, probabilitymathsProbabilityDi chance fi a result, fram 0 to 1 or 0% to 100%. One numba: 1/37 = 2.70%.Read di whole ting → 48.65%. Di same odds like red/black.

it cover
18 / 37
probability
48.65%
it pay
1:1
SD fi evry $1
1.00
Pon di table · 18 numba
Pon di wheel
0321519421225173462713361130823105241633120143192218297281235326

Weh fi put it

Di “Even” an “Odd” box inna di outside row, between di dozenbet demDozen1–12, 13–24 or 25–36, pay 2:1.Read di whole ting → an di colour diamond dem; pair an impair pon a French betting layoutgearBetting layoutDi bettin grid weh print pon di table. Nex name: table, felt, cloth.Read di whole ting →. Each one mus meet di table minimum.

Weh di ball go pon odd% a di spin dem
dis bet win
48.65%
anodda numba
48.65%
zero
2.70%
% a di spin dem
024.3248.65%

Di table limit dem inna rouletteFrench roulette

Zero a odd or even inna roulette?

Inna maths zeropon di wheelZeroDi one green pocket weh no even-money, dozen or column bet nuh cover; a weh di house edge come fram. Nex name: single zero, 0.Read di whole ting → even (yuh can divide it by two), but at di roulette table it lose fi both odd an even bet. Di layout settle di question cause it nuh put zero inna neida box. Sometime beginna dem argue bout it; di dealer dem done hear it bifo.

$10 × 100 spinodd
probability fi evry spin48.65%
win yuh expec inna 100 spin48.6
result yuh expec−$27.03
standard deviation$100
p(nuh win inna 100 spin)0.000000%
longest losin run weh normal7 spin
Di same expected loss like evry odda bet. A di spread yuh a choose.

Odd/even gainst red/black

Inna maths dem a di same: 18 numba, 1 to 1, 48.65%. Di two pair a bet only different inna which eighteen numba dem cover, suh a mix like “redbet demRedEven-money bet pon di 18 red numba. Inna French: rouge.Read di whole ting → an even” cover 28 numba wid a double hit pon di eight numba weh both red an even (12, 14, 16, 18, 30, 32, 34, 36). Di Bet Builder can work out any overlap like dat.

Build yuh bet

Di colour a odd an even numba inna roulette

Odd an red a nuh di same eighteen numba. Ten a di odd numba red an eight a blackbet demBlackEven-money bet pon di 18 black numba. Inna French: noir.Read di whole ting →: red 1, 3, 5, 7, 9, 19, 21, 23, 25 an 27; black 11, 13, 15, 17, 29, 31, 33 an 35. Di even numba share out di odda way, eight red an ten black. Suh red plus odd cover 26 numba, ten a dem two time, but red plus even cover 28.

Roulette odd/even payout an wah fi expec

Di fair odds gainst 18 outta 37 a 1.056 to 1; di table pay 1. Ova 37 average spin at $10, a bet pon even win 18 time (+$180), lose to di eighteen odd numba (−$180) an lose to zero one time (−$10): −$10 pon $370 weh yuh stake, 2.70%. Pon a double-zero wheel yuh have two zero fi lose to, an di cost a $20 pon $380, 5.26%.

Pon di wheel

Odd an even mix up roun di rim suh dat nuh piece a di wheel favour neida one. Di numba dem line up inna pair: wen yuh look pon di wheel, two odd numba usually follow by two even one. Like all outside betbet demOutside betA bet pon di box dem roun di grid: dozen, column an even-money bet.Read di whole ting →, it nuh cover nuh sectorpon di wheelSectorA piece a di wheel weh di pocket dem follow one anodda roun di arc, nuh a group pon di betting layout.Read di whole ting →.

French rule dem

Wid la partagerule demLa partageFrench rule: wen zero hit, half a di even-money stake come back. It cut di house edge pon dem bet deh inna half, to 1.35%.Read di whole ting →, half a a odd or even bet come back wen zero spin, an di cost drop to 1.35%. Wid en prisonrule demEn prisonFrench rule: wen zero hit, dem hold a even-money bet fi di nex spin instead a yuh lose it. It cut di house edge pon dem bet deh inna half.Read di whole ting → di bet stay pon di layout fi one more spin: if it win, it come back widout winnins, an if it lose dem tek it, an dat come to bout di same price. Weda zero count as even neva come up, cause di rule treat pair an impair di same way.

En prison: afta a zero, di even-money chip hold pon di line fi one more spin.

One evenin, work out

$5 pon odd fi 100 spin a $500 weh yuh stake, an di expected lossmathsExpected lossExpected value times all di money yuh bet; di average amount yuh lose ova a session or a period (di loss yuh fi expec pon average).Read di whole ting → a $500 ÷ 37 = $13.51. Di usual swing roun dat figure a bout $50, cause di standard deviationmathsStandard deviationDi square root a variance; ow far a result usually deh fram di expected value.Read di whole ting → a 100 even-money betbet demEven-money betRed/black, odd/even, high/low. 18 numba, pay 1:1.Read di whole ting → a $5 a 5 × √100. Bout two evenin outta tree end up between $64 dung an $36 up.

Question dem

La partage count yah suh?

Yes. Odd/even a a even-money bet an it get di half-back pon zero at a French table.

Wah mek yuh would bet odd/even instead a red/black?

Nuh maths reason. Some playa use di two a dem fi spread out dem run exposure, an dat change di pattern a di win dem an nutten bout di total.

Fun wid maths

Try dem yuhself fus. Evry ansa fold up; open it wen yuh ready.

  1. Old betting layoutgearBetting layoutDi bettin grid weh print pon di table. Nex name: table, felt, cloth.Read di whole ting → did have a bet sometime pon “low an even” togedda. It win even money if di numba did both low (1 to 18) an even, lose if it did neida, or zeropon di wheelZeroDi one green pocket weh no even-money, dozen or column bet nuh cover; a weh di house edge come fram. Nex name: single zero, 0.Read di whole ting →, an stay weh it deh if it did one but not di odda. Wah it did cost pon a European wheel?

    Show di ansa

    Ansa 2.70% a spin, but 5.26% a each bet weh really settle.

    Count di pocketgearPocketOne a di 37 compartment wid numba pon di rotor. Nex name: slot, cup.Read di whole ting → dem. Low an even: 2, 4 … 18, nine numba, win. High an odd: 19, 21 … 35, nine numba, plus di zero, ten inna all, lose. Di odda eighteen, low an odd or high an even, lef di bet weh it deh.

    Pon each spin di bet win 9 time outta 37 an lose 10: −1/37, di usual 2.70%. But pon 18 spin outta 37 nutten nuh happen. If yuh count only di spin dem weh settle it, di bet lose 1 unitmoney mattaUnitDi base stake weh a system or a playa work wid. Dem describe progression inna unit suh dem work at any table.Read di whole ting → inna 19, 5.26%, di American price.

    Pon a American wheel, wid 00 mongst di losa dem, it cost 5.26% a spin an 10% pon each bet weh settle. Bollman (2024) give it as a curiosity.

Sumting fi laugh

Zero even. Zero lose pon even.

Zero even. Zero lose pon even.

Source dem

  1. Ethier, S. N. The Doctrine of Chances: Probabilistic Aspects of Gambling. Springer, 2010. Chapta 13, roulette.
wi check it 2026-09-28model: European wheel, single zeroow wi work it out ↗source dem ↗