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STAGE 2 BANKROLL MATRIX · GRAND MARTINGALE · 75U / 1-SHOE
Grand Martingale (2x+1) — 75-Unit Bankroll & 1-Shoe (72-Hand) Risk-of-Ruin Matrix
Within capital-bounded horizon M136-0, a 75-unit treasury backing Grand Martingale (2x+1) for 72 hands (1 shoes) faces a 40-unit bet cap that models 24.41% ruin exposure, 38.83% target attainment at +19u, and 36.76% time-limit expiration. Every 8-deck hand remains statistically independent (45.86% Banker, 44.62% Player, 9.52% Tie), meaning progression sizing reshapes session variance without altering the house edge.
- Ruin Rate (-38u Stop)
- 24.41%
- Target Hit (+19u Cap)
- 38.83%
- 72-Hand Expected Hold
- 4.50u
- Table Max (6-Step Depth)
- 40u