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PROGRESSION SURVIVAL AUDIT · GMRS50
Grand Martingale (1-3-7-15-31) — 50-Hand Sprint (20u Bankroll) Survival & Ruin Proof
[GMRS50] Doubles the prior wager plus 1 extra unit after every loss (1, 3, 7, 15, 31) and resets to 1u on a win. Across 50-Hand Sprint (20u Bankroll) (Fast 45-minute mini-baccarat or two-thirds shoe sprint with a compact 20-unit buy-in), staking Grand Martingale on Player (1.2351% house edge) generates 221.0 units of cumulative action, an expected mathematical cost of −2.73 units, ±29.73 units of standard deviation, and a 55.5% session survival rate (44.5% bankroll ruin risk).
- GMRS50 Action
- 221.0u
- GMRS50 Expected EV
- -2.73u
- GMRS50 Session SD
- ±29.73u
- GMRS50 Survival
- 55.5%