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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
Engine-Verified Scoreboard · 18 Hands

Read the Board at Table Speed

Open this shoe in /calculator
Big Road P P B B B P P B B P P B B P B P
Big Eye Boy = = ≠ = ≠ ≠ = = = = = = ≠ =
Small Road ≠ ≠ ≠ ≠ ≠ ≠ = = = = ≠ ≠
Cockroach Pig ≠ = = ≠ ≠ ≠ ≠ = = ≠ ≠

Reference 8-deck shoe for Matrix Cell M140 (Grand Martingale (2x+1), 100u bankroll, 360 hands). Big Road and Bead Plate show Banker (red) and Player (blue); derived roads record structural symmetry.

Big Road B is Banker, P is Player Roads under it Red (=): repeating Blue (≠): breaking
Step-by-Step Mark Proofs (Rule 1 & Rule 2)
Big Eye Boy Mark #2

Column 2 has 2 beads. Column 1 has 2 beads. Same depth → red (=).

  1. Column 3 starts, so use Rule 1: compare Column 2 with Column 1, 1 column further back.
  2. Column 2 has 2 beads. Column 1 has 2 beads. Same depth → red (=).

Common table reading watchout: Comparing the wrong columns. Compare Column 2, the one that just finished, with Column 1.

Small Road Mark #2

Column 4 has 1 bead. Column 2 has 2 beads. Different depth → blue (≠).

  1. Column 5 starts, so use Rule 1: compare Column 4 with Column 2, 2 columns further back.
  2. Column 4 has 1 bead. Column 2 has 2 beads. Different depth → blue (≠).

Common table reading watchout: Comparing the wrong columns. Compare Column 4, the one that just finished, with Column 2.

Cockroach Pig Mark #2

This bead is at Row 2. Column 2 has a bead at Row 2 too → red (=).

  1. Column 5 goes down to Row 2, so use Rule 2: look 3 columns back, at Column 2.
  2. Column 2 has a bead at Row 2 too → red (=).

Common table reading watchout: Thinking "no bead at this row" means blue. It is blue only when Column 2 stopped exactly one row above this bead.

Verified Reference Data

Key Facts & Table Specifications

Session Bankroll & Horizon
100u / 5 Shoes (360 Hands)

Matrix cell M140 tests Grand Martingale (2x+1) with a $50 base unit and -50u/+25u absorbing boundaries.

Stop-Loss Ruin Probability
93.02%

Probability of hitting the -50u drawdown barrier before completing 360 hands or reaching +25u.

Stop-Win Target Completion
21.26%

Share of 360-hand trajectories reaching the +25u session ceiling, with 0.50% ending between barriers.

Table Limit Survival Depth
7 Steps (80u Cap)

A 80-unit house limit and 100-unit stack cap Grand Martingale escalation after 7 adverse coups.

Expected Session House Hold
27.83u ($1392)

Derived from 1566u total action (4.35x average wager) multiplied by the 1.0579% 8-deck Banker edge.

MATRIX CELL M140 · STOP-LOSS & STOP-WIN GEOMETRY

Grand Martingale 100u table-capped absorption-curve Across 360 Hands (M140)

In finite-shoe benchmark M140-1, running Grand Martingale across 360 deals with 100 units and a 80-unit maximum wager charts 1566u of total handle, 27.83u in commission-weighted drift, and a 93.02% probability of exhausting the 50-unit drawdown buffer.

Case M140-2 profiles the session-bounded 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 charts an average stake volatility-band of 4.35x and 27.83u ($1392) in theoretical house-edge toll.

M140 ParameterGrand Martingale (100u)5-Shoe absorption-curve
Grand Martingale Ladder1-3-7-15-31-63-127 (7 steps)Peak 127u multiplier on M140
100u Stack Window360 hands (5 shoes)Barriers -50u / +25u
80u Ceiling & Ruin93.02% ruin vs 21.26% winDepth 7 steps (40 cap hits)
1566u Handle & Hold27.83u ($1392)Multiplier 4.35x (table-capped drift)
STEP ESCALATION & TURNOVER AUDIT

80u Ceiling Collisions & Grand Martingale Turnover (5 Shoes)

In variance-scaled benchmark M140-3, running Grand Martingale across 360 deals with 100 units and a 80-unit maximum wager calibrates 1566u of total handle, 27.83u in commission-weighted drift, and a 93.02% probability of exhausting the 50-unit drawdown buffer.

Case M140-4 dissects the step-indexed 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 documents an average stake survival-window of 4.35x and 27.83u ($1392) in theoretical house-edge toll.

  • Cell M140 rule: lock the -50u stop on your 100u Grand Martingale stack across 360 hands.
  • Matrix M140 tabulates 27.83u ($1392) in house hold over 1566u of Grand Martingale action.
  • Scoreboard check M140: Big Eye Boy, Small Road, and Cockroach Pig use red for repeating symmetry (table-capped absorption-curve) and blue for pattern breaks—never for Banker or Player.
Table Reality Check

Myth vs. Truth

MythBringing 100 units to a 5-shoe session lets Grand Martingale (2x+1) overcome the 1.058% Banker house edge.
TruthNo bankroll size alters per-hand expectation: over 360 hands, Grand Martingale generates 1566u in action, 27.83u in expected loss, and a 93.02% stop-loss ruin rate.
MythDerived road colors on the scoreboard tell Grand Martingale bettors whether Banker (red) or Player (blue) is due during a 360-hand run.
TruthOn Big Eye Boy, Small Road, and Cockroach Pig, red indicates repeating column structure and blue indicates breaking structure; neither color represents Banker or Player.
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  • Structured step-by-step track across Foundations, Big Eye Boy, Small Road, and Cockroach Pig
  • 74 interactive lesson scoreboards and 94 inline quiz checks with plain-English mark feedback
  • Cloud Shoe Log and cross-device progress on web, iOS, and Android