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STAGE 2 STRESS TEST · GRAND MARTINGALE VS FLAT BETTING
Grand Martingale (2x+1) vs. Flat 1-Unit Baseline — Single-Alternating Chop under 5% Banker Commission (72-Hand Stress Test)
Benchmark S115-0 tabulates the eight-deck absorption-curve between Grand Martingale and Flat Betting over 72 hands of 5% Comm Chop: with 60 units, a 50-unit cap, and 1.0579% house edge, ruin settles at 31.65% vs 5.84% while commission-adjusted decay-rate reaches -26u. 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
- 31.65%
- Flat Betting Ruin Rate
- 5.84%
- Peak Trough (2-Run)
- -26u
- 5% Comm Chop House Edge
- 1.0579%