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STAGE 2 STRESS TEST · GRAND MARTINGALE VS FLAT BETTING
Grand Martingale (2x+1) vs. Flat 1-Unit Baseline — Four-Shoe Alternating Sawtooth under 5% Banker Commission (288-Hand Stress Test)
In head-to-head trial S127-0 across 288 deals (4-Shoe Chop, 1.0579% edge), Grand Martingale records a -32u peak trajectory and 47.62% ruin probability on a 160-unit stack, whereas Flat Betting logs a -11u trough and 9.92% ruin under the 100-unit limit. Because every 8-deck coup is statistically independent under 5% Banker Commission (0.95:1) (1.0579% edge), progression rules alter drawdown speed and table-cap collisions without changing per-hand expectation.
- Grand Martingale Ruin Rate
- 47.62%
- Flat Betting Ruin Rate
- 9.92%
- Peak Trough (3-Run)
- -32u
- 4-Shoe Chop House Edge
- 1.0579%