Roulette lab · Lab · Measurement · 6 minute

Speed a di roulette rotor

Ow fast di numba dem pass, an why dat matter more dan di ball.

Short ansa

Normal rotor turn at 0.3–0.5 rev/s an lose speed slow. Ova a 15-second ball flight di rotor turn 5–7 time, suh a likkle timin mistake turn into a big pocket mistake.

normal
0.3–0.5 rev/s
pocket a second
11–18
slow dung
slow-slow
time fi one lap
2–3.3 s

Ow fi measure it

Time one full turn a di 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 → pocketgearPocketOne a di 37 compartment wid numba pon di rotor. Nex name: slot, cup.Read di whole ting → pass a fix point like a deflectorgearDeflectorOne a di metal block dem pon di apron weh scatter di ball wen it a drop. Nex name: canoe, diamond, pin.Read di whole ting →; do it tree time an tek di average. Pon a live stream yuh can do it fram di video, but memba seh di stream a replay. RotorgearRotorDi part a di wheel weh spin an carry di pocket dem.Read di whole ting → speed change fram dealer to dealer: some gi it a harder push. Di house set a minimum (suh di wheel neva nearly stop) an di dealer dem gi it a push between roun. Di table below read like a roulette wheel speed calculator: find yuh second fi one lap an read off di speed inna turn an pocket a second.

rotor speedsecond fi one lappocket a secondpocket fi a 0.1 s mistake
0.25 rev/s4.09.30.9
0.33 rev/s3.012.31.2
0.40 rev/s2.514.81.5
0.50 rev/s2.018.51.9
0.60 rev/s1.722.22.2
A faster rotor turn timin mistake into pocket mistake faster.

Ow live roulette work

Why predictor dem care

Any guess bout weh di ballgearBallDi likkle ball weh di dealer fling roun di track di opposite way to di rotor. Modern ball mek outta ivorine or Teflon, 18–21 mm.Read di whole ting → wi drop haffi match up wid weh di rotor wi deh dat same moment. At 15 pocket a second, a 0.1-second mistake inna di drop time a 1.5 pocket; a 0.5-second mistake a bout one fifth a di wheel. Di rotor phase a di easy half a di problem, cause di rotor heavy an slow dung slow; di ball drop time a di hard half.

Slowin dung

A good rotor bearing lose only a few percent a it speed ova a one-minute roun, suh fi di whole ball flight yuh can treat di rotor speed like it nuh change. Ova a whole shift it woulda stop if di dealer neva push it. Predictor dem measure di rotor one time evry roun; di ball nuff time evry roun.

Which way it turn

Inna nuff casino, di dealer dem switch di rotor direction between roun. Dem always launch di ball gainst di rotor. Wen di direction change, di scatter pattern change, cause di ball lick di deflector dem fram di odda side, suh a predictor need two scatter distribution fi evry wheel.

Wah a playa can tek fram dis

Nutten bout di odds. Di rotor a one clock, an fi know it speed tell yuh ow fast di pocket dem pass, an dat only interestin if yuh know too wen di ball wi drop. Fi di Lab bias analysis, di rotor speed nuh matter: bias a bout which pocket come up more ova thousands a spin, nuh bout weh di rotor deh at any one moment.

Ow big di sample size fi be

Question dem

A faster rotor mek di game more random?

It mek timin harder an scatter wider. Di odds still a 1/37 fi each pocket, nuh matter wah.

Why dealer dem push di rotor between roun?

Fi keep it ova di house minimum speed. A slow rotor easier fi time.

Sumting fi laugh

One heavy clock weh slow dung slow, an tick 15 pocket a second.

One heavy clock weh slow dung slow, an tick 15 pocket a second.

Source dem

  1. Small, M. & Tse, C. K. “Predicting the outcome of roulette.” Chaos 22(3), 2012.
  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 ↗