Risk: Medium
Percentage bankroll
A fixed share of the current bankroll is staked, so bets grow after wins and shrink automatically after losses.
How it works
The percentage never changes — the money does, because the bankroll moves.
Losing runs automatically de-risk: each loss makes the next stake smaller.
Mathematically the bankroll can never reach zero from percentage staking alone.
Formula
stake = current_bankroll × stake_pct
- current_bankroll — This strategy's own live bankroll
- stake_pct — Share of it risked per bet, e.g. 2%
Worked example from a €10 base stake
- Bankroll €1,000 at 1%: stake €10.
- After a €11 win the bankroll is €1,011, so the next stake is €10.11.
- After a €10 loss the bankroll is €1,001, so the next stake is €10.01.
If the bet wins: Wins raise the bankroll, so the next stake rises proportionally — profit compounds.
If the bet loses: Losses lower the bankroll, so the next stake falls. The bankroll cannot mathematically reach zero.
Reset conditions: No reset: the percentage is constant, only the bankroll it applies to moves.
Historical robot performance
Settled bets
2
Won / lost
1 / 1
Strike rate
50.0%
Average odds
2.95
Total staked
€20.00
Net P/L
€14.50
ROI
72.5%
Max drawdown
€10.00
Sample size: 2 settled bets. This is far too small a sample to draw conclusions from. Figures are published for transparency, not as evidence that any strategy is profitable.
Simulated bankroll: €1014.50 from a €1000.00 start. Paper mode — no real money is staked.
Advantages
- Compounds during winning runs
- Self-protecting during losing runs
Disadvantages and risk
- Slower recovery after a drawdown
- Stake changes make bet-by-bet comparison harder
Overall risk rating: Medium.
When this strategy suits
- Long sequences where compounding matters
- Bettors who want automatic de-risking during losing runs
- Comparing growth against a flat-stake baseline