Three working tools that turn the math on this site into actionable numbers. All calculations run locally in your browser - nothing leaves the page.
Computes the full negative progression for a 2:1 column bet given a base unit, sequence depth, and your casino's table maximum. The sequence always returns +1 unit of target profit on any winning step.
Returns the exact stake required to recover all accumulated losses and post your chosen target profit on the next winning selection at the given decimal odds.
Choose a wheel and bet type to see the true hit probability, the payout ratio, the per-spin expected value at your stake, and the house edge.
Stand-alone documentation for the Column Bet Martingale tool above.
Read 02 · ReferenceCurated table of outside-bet maximums by jurisdiction and operator.
Read 03 · GlossaryFrom "bankroll" to "true odds" - every term used on this site, defined.
Read 04 · SafetySession limits, loss caps, and the right time to walk away.
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