Chance, odds, and pretend credits

Roulette Odds Lab

Pick a color, odd/even, or a single number. Then spin to see how probability feels in real time. This version uses play credits only and is meant for learning, not gambling.

How It Works

  1. Choose your bet

    Simple bets like red, black, odd, or even win more often. A single-number bet is harder to hit, so the payout is bigger.

  2. Set a stake

    Enter how many Dollarbucks you want to risk. You cannot bet more than you have.

  3. Spin and compare

    The history shows the chance of your bet, the winning number, and your credit after each round.

Single number Pays 35x Chance: 2.70%
Red or black Pays 2x Chance: 48.65%
Odd or even Pays 2x Chance: 48.65%

Play a Round

Choose a quick bet
Or choose one number
?
Selected bet
None yet

Use whole Dollarbucks. Try several rounds and watch the pattern, not just one spin.

Round History

No rounds yet. Choose a bet and spin to begin.