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STAGE 2 BANKROLL MATRIX · GRAND MARTINGALE · 100U / 5-SHOE
Grand Martingale (2x+1) — 100-Unit Bankroll & 5-Shoe (360-Hand) Risk-of-Ruin Matrix
Case M140-0 quantifies the multi-coup Grand Martingale (2x+1) (1-3-7-15-31-63-127) across a 100-unit bankroll and a 360-hand (5-shoe) window, where a 80-unit table ceiling and 50-unit stop-loss produce a 93.02% ruin rate while maps an average stake drawdown-slope of 4.35x and 27.83u ($1392) in theoretical house-edge toll. 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 (-50u Stop)
- 93.02%
- Target Hit (+25u Cap)
- 21.26%
- 360-Hand Expected Hold
- 27.83u
- Table Max (7-Step Depth)
- 80u