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STAGE 2 BANKROLL MATRIX · GRAND MARTINGALE · 40U / 3-SHOE
Grand Martingale (2x+1) — 40-Unit Bankroll & 3-Shoe (216-Hand) Risk-of-Ruin Matrix
For a 40-unit roll spanning 216 hands (3 shoes), Grand Martingale (2x+1) (1-3-7-15-31-63-127) tracks a stochastic escalation under matrix M132-0, where the 60-unit table roof and -20u/+10u barriers yield 94.80% ruin versus 19.53% upside completion. 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 (-20u Stop)
- 94.80%
- Target Hit (+10u Cap)
- 19.53%
- 216-Hand Expected Hold
- 8.98u
- Table Max (6-Step Depth)
- 60u