Coin flip experiment

Ten flips. One bankroll. How will you bet?

Start with $100 Heads wins · 80% chance Even-money payout
Your bankroll 0 / 10 flips
$100.00
Starting balance
0 / 10
Make your first bet
Choose an amount, then flip the coin.

Bet whole dollars. Heads wins, tails loses; a $0 bet skips the wager but counts as a flip.

You can change your bet before every flip.

Your flips

Your results will appear here after your first bet.

Each flip is independent: heads has probability 0.8, tails 0.2. The game ends after 10 flips or when your bankroll reaches $0. Reloading the page starts a new game.