D'Alembert | Betting Strategy Analytics

D'Alembert

Increase one unit after a loss; decrease one unit after a win (minimum one unit).

Negative progressionMedium riskBacktestableRule v1 (dalembert engine v1)

Backtest this strategy Compare

How it works

A linear negative progression — gentler than Martingale but still raises exposure during losing streaks.

Canonical rules

Plain-language summary of the published rule version (same snapshot stored on every backtest).

After a loss, increase stake by 1 unit; after a win, decrease by 1 unit (minimum 1 unit).

Push / void: Push returns the stake and does not change progression; the next stake equals the current stake.

View stored rule JSON

{
  "rule": "After a loss, increase stake by 1 unit; after a win, decrease by 1 unit (minimum 1 unit).",
  "pushRule": "Push returns the stake and does not change progression; the next stake equals the current stake."
}

Default parameters

{
  "unit": 1
}

Risk profile

If you lost 5 bets in a row from a fresh cycle (ignoring caps):

Total staked15

Next stake6

Pros

Gradual stake changes
Easier to cap than doubling systems

Cons

Does not recover full loss in one win
Losing streaks still add risk

Mini-simulator

Enter a W / L / P sequence to see stakes using the same engine code as backtests.

Outcome sequence

Use W (win), L (loss), or P (push), separated by spaces or commas.

Step	Outcome	Stake
1	LOSS	1
2	LOSS	2
3	WIN	3
4	LOSS	2
5	WIN	3
6	WIN	2

Past results don't predict future results. No staking strategy overcomes the bookmaker margin in the long run.