How it works
You bet in units (say $100 = 1 unit). After every win, you double the bet. After three straight wins — or any loss — you reset to 1 unit. That’s the entire system.
| Step | Bet | If you win | If you lose |
|---|---|---|---|
| 1 | 1 unit | Bet 2 units | Reset to 1 |
| 2 | 2 units | Bet 4 units | Reset to 1 |
| 3 | 4 units | Bank +7 units, reset | Reset to 1 |
The crucial design choice: after step 1 you’re betting winnings, not bankroll. A loss at step 2 or 3 ends the cycle one unit down from where it started — never more.
A worked example
1 unit = $100, betting Banker (commission ignored here for clarity — the math section puts it back):
Complete the run and you bank +7 units. Lose anywhere along the way and the cycle costs exactly −1 unit. That asymmetry — small fixed downside, sevenfold upside — is the whole appeal.
The honest math
On Banker (ties as pushes), each hand wins about 50.7% of the time, so the chance of completing three straight wins is roughly 13% — about one cycle in eight. With the 5% Banker commission, a completed run pays +6.65 units rather than +7.
When to use it
- When you want streak excitement without Martingale-style blowup risk — the worst cycle is one unit.
- On Banker, where the win probability per hand is highest.
- When you can honestly commit to the reset — both after three wins and after every loss.
- In short sessions where you’d rather risk little for a shot at a hot run.
Pros & cons
What the bro likes
- Maximum loss per cycle is a single unit
- You press with the table’s money after step 1
- Dead simple to run at a live table
- Built-in profit-taking: three and out
What to watch
- Only ~13% of cycles complete — most end −1
- Choppy shoes bleed you one unit at a time
- Does not change the 1.06% house edge
- The temptation to ride a fourth win breaks the system
How it compares
| This system | The 1-3-2-6 | The Martingale | |
|---|---|---|---|
| Type | Positive progression | Positive progression | Negative progression |
| Worst case per cycle | −1 unit | −1 unit | Catastrophic — doubles until the cap |
| Best for | Streak chasers | Structured pressers | Nobody, honestly |
| Guide | You’re here | Read → | Read → |
Quick questions
Is the Paroli profitable long-term?
No betting system is — the house edge applies to every bet regardless of sequence. The Paroli’s virtue is damage control: it caps each cycle’s loss at one unit while leaving room for big short-term runs.
Why stop at three wins?
Because the chance of a streak keeps halving while your stake keeps doubling. Three is the sweet spot the system is built around — ride further and one loss wipes a much bigger pile.
Paroli or 1-3-2-6?
They’re cousins. The 1-3-2-6 banks more profit mid-sequence (it drops back at step 3); the Paroli is simpler and more aggressive. Both cap the downside at one unit — pick the one you’ll actually follow.