Roulette lab · Lab · Method · 7 minute

Ow fi read di spin history weh casino publish

Nuff live operator publish full spin history. Yah so a ow fi read dem, clean dem, an wah dem can an cyaan tell yuh.

Short ansa

A spin history a a list a result wid timestamp, often fi each table. It a di raw material fi bias analysis if, an only if, it show one single wheel headgearWheel headNex name fi rotor: di part weh spin an carry di numba dem.Read di whole ting → ova a period widout maintenance. Most a dem nuh do dat, an most a dem too short.

usual length weh dem publish
500–10,000 spin
wah yuh need fi a useful test
10,000+ fram one head
main field weh missin
which wheel head it a
bes use
learn wah noise look like

Wah inna a history

Timestamp, table name, result (0–36), sometime dealer name an round ID. It a log a wah di game server record, suh it accurate. Wah it rarely have a which physical rotorgearRotorDi part a di wheel weh spin an carry di pocket dem.Read di whole ting → head did deh pon dat table at dat time, an dat a di ting a bias analysis need, cause dem rotate head between bowlgearBowlDi outside part a di wheel weh nuh move: di wood or composite rim weh hold di ball track an di apron, an di rotor spin inside a it.Read di whole ting →.

Cleanin di data

Check fi gap (maintenance, closin), fi round ID weh show up two time, fi result outside 0–36 (00 pon a American table, test spin), an fi change inna dealer rotation weh might mark a head swap. Split di data inna segment at any gap longa dan a few hour; treat di segment dem like dem coulda be different wheel. If di table name a di only ting fi identify it, assume seh di head change at least once a month.

wah fi checkwah mekwah fi do
gap > a few hourlikely a maintenance or a head swapsplit inna segment
dealer changenormal; sometime it fall pon di same time as a swapnote it, nuh split
result outside 0–36wrong kinda table, or test datatek it out
round weh show up two timeexport mistaketek out di duplicate
exac 48.65 / 48.65 / 2.70 proportiontoo perfec fi truecheck if di data mek up
too few spin inna a segment< 1,000test cyaan run; only join dem if yuh sure a di same head

Runnin di test dem

Fi each segment: chi-square ova 37 pocketgearPocketOne a di 37 compartment wid numba pon di rotor. Nex name: slot, cup.Read di whole ting → (df 36), 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 → z-score inna wheel order, an a binomial test fi any pocket yuh did suspec bifo yuh look. Den shuffle di result dem inside di segment an run it again: di shuffle statistics a wah fairness look like wid dis exac sample size, an if yuh real statistics nuh clear outside di shuffle range, yuh find nutten. Di Wheel Bias Analyzer do dis inna di browser.

Wah a 2,000-spin segment can catch (80% power)hit rate fi a pocket
1/37 (fair)
nutten
1/30
≈ 50% a di time
1/25
yes
1/20
plain fi see
1/35 (di kind weh pay)
no
hit rate fi a pocket
01.50plain fi see
Di bar dem show ow easy yuh can catch it inna a 2,000-spin segment. A 1/35 pocket need bout 70,000 spin. Di bias dem weh mek profit deh below wah any publish history can show.

Di chi-square testDi roulette wheel

Wah yuh wi find

Noise. Hot numbamyth demHot numbaA numba weh come up more dan expected lately. Pon a fair wheel it nuh predict nutten.Read di whole ting → at 13–15 hit fi evry 300 spin, sector at ±1.5 sigma, a chi-square roun 36 ± 8. Now an den a segment at p < 0.05, an dat a wah one segment outta twenty do. Treat it as a reason fi look pon di nex segment fram di same table, an expec it fi disappear. Afta a dozen history yuh wi learn wah randomness look like at sample size a a few tousand, an dat a di most useful ting di Lab can teach.

Wah di history dem good fah

Fi check wah di dealer announce gainst di log. Fi measure di pace (spin a hour) fi di expected-loss calculation. Fi learn di birthday problemmathsBirthday problemOw much people it tek bifo two a dem probably share a birthday, or ow much spin bifo a numba probably come again. Pon a 37-pocket wheel, 8 spin enough fi a betta-dan-even chance.Read di whole ting →, ow long run las an di hot-numba distribution pon real data. Fi build di feelin weh save money: a pattern inna 500 spin a nuh pattern. An, inna principle, as di fus page a a bias notebook weh modern maintenance wi mek useless bifo it full up.

Probability a run inna rouletteProblem: di birthday wheel

Question dem

Mi can get di history fi a casino-floor wheel?

Rarely. Casino floor show 20 numba an keep di res inside.

Wah mek operator publish history at all?

Fi transparency, an cause playa ask. It nuh cost dem nutten pon a wheel weh get maintain.

Which test fus?

Chi-square fi di whole segment. If nutten nuh stan out, stop.

Sumting fi laugh

Di data real. Di wheel it describe might nuh exist again.

Di data real. Di wheel it describe might nuh exist again.

Source dem

  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.
wi check it 2026-09-28model: European wheel, single zeroow wi work it out ↗source dem ↗