Roulette strategy simulator
Compare flat betting, Martingale and Paroli across reproducible practice sessions with finite bankrolls and table limits.
One set of spins. Three staking rules.
Compare flat betting, Martingale and Paroli with the same wheel, pocket sequences and starting chips.
Choose your chip budget, then run the comparison.
Model assumptions
Reproducible pseudorandom model using Park-Miller seed updates and rejection sampling. One finite session is illustrative, not a forecast. Expected-loss exposure is a mathematical comparison for the amounts wagered, not a guaranteed session result. Up to 1,000 sessions per rule and 10,000 spins each, with at most 1,000,000 scheduled spins across all three rules. Session seeds are deterministically mixed from the chosen seed. Percentiles use sorted sample positions rounded down; an even-count median averages the two middle results. These finite samples are not confidence intervals. This site does not save your inputs.
Each system bets red. Reuse the same wheel, seed and spin limit to compare the same underlying pocket sequence. The run stops before an unaffordable or over-limit stake. Paroli doubles after wins and resets after three wins or any loss.
Read the method
Use our simulation methodology for model boundaries, house-edge calculations for expectation, and bet payouts for settlement rules.
Sources and scope
- Rules of Play for Table Games, Roulette. British Columbia Lottery Corporation. Double-zero standard payout table and placement. European pocket count is independently verified from native Wheel.
Publication date: not stated. Checked 2026-11-07.
- Roulette probability derivation. Amenti Labs LLC. Fair independent pockets, fixed payouts, full outside loss on zero. Formula and all supported bets regression tested.
Publication date: 2026-11-07. Checked 2026-11-07.
A table to come back to
See Roulette for iPhone and iPad, with European and American tables, strategy tools and session insights. The native app is in development.
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