Fibonacci betting applies the famous Fibonacci number sequence to bet staking. The sequence — 1, 1, 2, 3, 5, 8, 13, 21, 34, 55... — governs how stakes change after wins and losses. After a loss, you advance one step in the sequence (increasing the stake). After a win, you go back two steps (decreasing the stake). A win always recovers the previous two losses.
The progression: start at step 1 (stake = 1 unit). If you lose, move to step 2 (stake = 1 unit — same as step 1). Lose again, move to step 3 (stake = 2 units). Continue losing and you move through: 1, 1, 2, 3, 5, 8, 13, 21... A win at any step recovers the previous two-step loss through the two-step regression.
Compared to Martingale (which doubles after every loss), Fibonacci is slower to escalate but still grows exponentially over a long losing streak. After 10 consecutive losses, Fibonacci requires a stake of 55 units; Martingale would require 512 units. Both systems eventually become practically unworkable against prolonged losing sequences.
Theoretical basis: Fibonacci betting is mathematically sounder than Martingale for near-even-money propositions — a single win recovers the last two losses rather than one. However, it still cannot produce a long-run profit from negative EV bets. The system is popular among recreational bettors on football draws markets (near-even money), where it provides a structured progression.
Example
You apply Fibonacci to even-money bets. Stakes (in units): Bet 1 = 1 (lose), Bet 2 = 1 (lose), Bet 3 = 2 (lose), Bet 4 = 3 (win). Win at step 4 (3 units). Go back two steps to step 2 (1 unit). Your win of 3 units covers your previous losses at steps 2 and 3 (1+2=3). Return to near the starting position.