Every player starts with the bankroll, bets $10 on red and doubles the bet after each loss; after a win the bet goes back to $10. A bet is cut to the money left or to the table maximum. "4 losses" means the bankroll pays for 4 losses in a row: $10 + $20 + $40 + $80 = $150.

Money in hand, 100 of the 10,000 players
ends ahead ends behind goes broke starting bankroll
Share of all 10,000 players after each spin
ahead behind, broke included broke

AI-generated interactive demo.