Step-by-step: one evenin wid $100 pon red
One hundred dolla, five-dolla chip, red evry spin, an a rule fi stop. Spin by spin.

A simulate evenin at a live table: up to 60 spin a $5 pon red fram a $100 budget, wid a $50 stop-loss an a $50 stop-win. Di stop-loss end it at spin 36. Di session show wah variance look like as it a happen, an why di stop rule a di only decision weh did matter.
Di plan
Wah a di bes roulette strategy wid $100? Nuh one weh bring down di average cost. Dat budget a money wi can lose; wah wi choose a di stake an di stop rule dem. Stake $5, 5% a di budget, an dat gi wi bout twenty losin bet inna wi hand. Stop-lossstrategy demStop-lossA amount a loss weh yuh set fram bifo, an wen yuh reach it yuh end di session (di loss weh mek yuh stop).Read di whole ting → at −$50 an stop-winstrategy demStop-winA profit target weh yuh set fram bifo, an wen yuh reach it yuh end di session (di win weh mek yuh stop).Read di whole ting → at +$50, an wi decide dem now. 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 → ova 60 spin a 60 × $5 / 37 = $8.11. Wi expec fi leave wid bout $92, an fi deh anywhere between $20 an $170 wid reasonable probabilitymathsProbabilityDi chance fi a result, fram 0 to 1 or 0% to 100%. One numba: 1/37 = 2.70%.Read di whole ting →.
Spin 1–20
R B B R R 0 B R R B R B B B R R B R B R. Ten redbet demRedEven-money bet pon di 18 red numba. Inna French: rouge.Read di whole ting →, nine blackbet demBlackEven-money bet pon di 18 black numba. Inna French: noir.Read di whole ting →, one 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 →: +$50 − $45 − $5 = $0. Balance $100. Di zero at spin 6 cost a chipmoney mattaChipA token weh stand fi a fix amount, weh yuh put pon di betting layout fi mek a bet. Nex name: check.Read di whole ting → an, at 1/37, it come likkle early. Nutten yah strange. Wi level afta twenty spin.
Spin 21–36
B B B B B R B B R B B R B B B B. Five black fi start, thirteen inna all: tree red, thirteen black, +$15 − $65 = −$50. Balance $50. Dis a di stretch weh mek people change dem bet, double up or switch colour. Di probability fi get 13 or more black inna 16 spin unda 1%; it did haffi happen to smaddy tonight. Wi down $50 fram di start, di stop-loss kick in at spin 36, an wi get up.

Spin 37–60, widout wi
R B R B, den R R B R 0 R B R R B R R B B R R B R B R. Fourteen red, nine black, one zero: if wi did stay, +$70 − $45 − $5 = +$20 an a balance a $70 at spin 60. Thirty-six spin at a live table a bout 45 minute. Wi leave wid $50, down $50, gainst a expected −$4.86 fi 36 spin. Thirteen red, twenty-two black, one zero.
- p10 −$100
- p25 −$100
- median −$100
- p75 +$0
- p90 +$70
Wah happen
Wi pay bout $5 fi 45 minute a roulette, plus $45 a bad luck. Thirteen red inna 36 spin deh way below di 17.5 wi did expec, an nine red short a di black dem a −$45 bifo di zero. VariancemathsVarianceA measure a ow wide di result dem spread roun di expected value. High fi straight up, low fi even-money bet.Read di whole ting → decide di evenin; di stake an di spin dem decide di price; di stop-loss decide wen it done. If wi did stay, wi woulda get back $20 by spin 60, an dat nuh a reason fi stay: di comeback a did variance too, an suh di black run weh come bifo it.
Wah wi neva do
Change di stake afta a loss (dat a a progressionstrategy demProgressionAny rule weh change di stake based pon di result dem weh pass. Negative progression raise it afta loss, positive progression afta win.Read di whole ting →, an it push up turnovermoney mattaTurnoverAll di money yuh bet ova a session or a period, countin di winnins yuh bet again (all di money yuh bet, roun afta roun). Nex name: handle, action.Read di whole ting →). Switch colour afta di black run (di odds same way). Stay pass 60 spin cause wi did “nearly even” (dat a di stop-loss a get renegotiate). Bet di dozenbet demDozen1–12, 13–24 or 25–36, pay 2:1.Read di whole ting → weh “neva come up” (same edge, different shape). Evry one a dem woulda change di shape a di evenin an none woulda change di expected cost.
Question dem
Twenty chip inna yuh hand instead a ten. Di evenin las longer; di cost fi each spin cut inna half.
Expected loss $4.05 instead a $8.11. Yes.
A nutten. Thirteen black inna sixteen spin happen bout one evenin outta 125.
Sumting fi laugh

Di stake an di spin dem set di price. Di wheel set di mood.
Source dem
- Ethier, S. N. The Doctrine of Chances: Probabilistic Aspects of Gambling.