Lab for Roulette · Lab · How to Do Am · 7 min

How to Read Spin History Wey Dem Publish

Many live operators dey publish full spin histories. Dis na how to read dem, clean dem, and wetin dem fit and no fit tell you.

Short answer

Spin history na list of results with timestamps, many times for each table. Na di raw material for bias analysis if, and only if, e identify one single wheel headequipmentWheel headAnoda name for rotor: di part wey dey spin and carry di numbers.Read di whole tin → over one period wey no get maintenance. Most no dey do am, and most too short.

normal length wey dem publish
500–10,000 spins
wetin you need for test wey get use
10,000+ from one head
di main field wey no dey
which wheel head e be
di best use
to learn how noise dey look

Wetin History Dey Carry

Timestamp, table name, result (0–36), sometimes dealer name and round ID. Na log of wetin di game server record, so e correct. Wetin e no dey carry most times na which physical rotorequipmentRotorDi part of di wheel wey dey spin and carry di pockets.Read di whole tin → head dey dat table for dat time, and na dat tin bias analysis need, becos dem dey rotate heads between bowlsequipmentBowlDi outer part of di wheel wey no dey move: di wooden or composite rim wey hold di ball track and di apron, and di rotor dey spin inside am.Read di whole tin →.

How to Clean Di Data

Check for gaps (maintenance, closures), for round IDs wey repeat, for results wey dey outside 0–36 (00 for American table, test spins), and for changes for dealer rotation wey fit mark head swap. Divide di data into segments for any gap wey long pass few hours; treat di segments as wheels wey fit be different. If di table name na di only identifier, assume sey di head change at least every month.

checkwhywetin to do
gaps > few hoursmaintenance or head swap fit don happendivide into segments
dealer changesnormal; sometimes dem dey happen togeda with swapsnote am, no divide
results wey dey outside 0–36wrong type of table, or test dataremove dem
rounds wey repeatmistake from di exportremove di ones wey repeat
exact 48.65 / 48.65 / 2.70 proportionstoo perfect, e dey suspiciouscheck whether na data wey dem manufacture
spins too few for each segment< 1,000di test no fit run; join dem only if you sure sey na di same head

How to Run Di Tests

For each segment: chi-square over 37 pocketsequipmentPocketOne of di 37 small boxes wey get number for di rotor. Dem also dey call am: slot, cup.Read di whole tin → (df 36), sectorwheelSectorPockets wey follow each oda for one arc of di wheel, no be group for di layout.Read di whole tin → z-scores for di order of di wheel, and binomial test for any pocket wey you suspect before you look. Den shuffle di results inside di segment and run am again: di shuffled statistics na how fairness dey look with dis exact size of sample, and if your real statistics no dey clearly outside di shuffled range, you never find anytin. Di Analyser for Roulette Wheel Bias dey do dis inside di browser.

Wetin Segment of 2,000 Spins Fit Catch (80% Power)pocket hit rate
1/37 (fair)
notin
1/30
≈ 50% of di time
1/25
yes
1/20
e clear
1/35 (di kind wey dey pay)
no
pocket hit rate
01.50e clear
Di bars dey show how you fit catch am for segment of 2,000 spins. Pocket of 1/35 need about 70,000 spins. Di biases wey dey bring profit dey below di resolution of any history wey dem publish.

Di Chi-Square TestDi Roulette Wheel

Wetin You Go Find

Noise. Hot numbersmythHot numberNumber wey don show pass wetin dem expect recently. For fair wheel e no dey predict anytin.Read di whole tin → for 13–15 hits for every 300 spins, sectors for ±1.5 sigma, chi-square around 36 ± 8. Once once, one segment for p < 0.05, and na wetin one segment out of twenty dey do. Take am as reason to look di next segment from di same table, and expect sey e go disappear. Over twelve histories, you go don learn how randomness dey look for sample sizes of few thousand, and na di most useful tin di Lab fit teach.

Wetin Di Histories Good For

To check di announcement of di dealer against di log. To measure speed (spins every hour) for di expected-loss calculation. To learn di birthday problemmathsBirthday problemHow many pipo e go take before two of dem go probably share birthday, or how many spins before one number go probably repeat. For wheel wey get 37 pockets, 8 spins don do for chance wey pass even.Read di whole tin →, streak lengths and di hot-number distribution on real data. To build di sense wey dey save moni: pattern for 500 spins no be pattern. And, for theory, as di first page of bias notebook wey modern maintenance go make useless before e full.

Probability of Streaks for RouletteProblem: Di Birthday Wheel

Questions wey pipo dey ask

I fit get di history for casino-floor wheel?

No too often. Floors dey show 20 numbers and keep di rest inside.

Why operators dey even publish histories?

Transparency, and becos players dey ask. E no cost dem anytin for wheel wey dem maintain.

Which test go first?

Chi-square for di whole segment. If notin special dey, stop.

Small laugh

Di data na real. Di wheel wey e describe fit no dey again.

Di data na real. Di wheel wey e describe fit no dey again.

Sources

  1. Pearson, K. “On the criterion that a given system of deviations from the probable…” Philosophical Magazine 50(302), 1900.
  2. Barnhart, R. T. Beating the Wheel. Lyle Stuart, 1992.
we check am 2026-09-28model: European wheel, single zerohow we work am ↗where we get am ↗