Most bettors who go broke don't go broke because they pick badly. They go broke because they stake badly.
That sounds like a slogan, so let's prove it. We simulated a bettor who is genuinely good — better than almost anyone actually is — and showed that even this bettor destroys their bankroll if they stake too much per bet. Then we'll explain, in plain terms, why 1% is the number that keeps you in the game.
The setup
Imagine a bettor with the following profile:
- Win rate: 55% at odds of 2.00 (even money). That means for every 100 bets, they win 55 and lose 45. At these odds, that's a solid, sustainable edge — the kind of hit rate most professional bettors would be proud of, and far better than the average recreational bettor achieves.
- They place 1,000 bets. Enough for the long run to actually show up.
- They always stake the same percentage of their current bankroll — 1%, 2%, 3%, 5%, 10%, or 20%.
We then simulated this bettor's journey 20,000 times for each stake size. Same skill, same odds, same number of bets. The only thing that changes between the rows in the table below is how much of the bankroll goes on each bet.
If stake size didn't matter, all six rows would look roughly the same. They do not.
The results
| Stake per bet | Risk of ruin (<10% of start) | Chance of losing half | Chance of ending in loss | Median final bankroll | Typical worst drawdown |
|---|---|---|---|---|---|
| 1% | 0.0% | 0.0% | 0.2% | 2.6x | 16% |
| 2% | 0.0% | 0.2% | 0.2% | 6.1x | 29% |
| 3% | 0.0% | 1.8% | 0.3% | 12.8x | 42% |
| 5% | 0.1% | 11.7% | 0.9% | 42.6x | 61% |
| 10% | 8.9% | 47.0% | 6.3% | 149.7x | 89% |
| 20% | 70.9% | 90.2% | 51.3% | 0.87x | 99.9% |
20,000 simulations per row. 55% win rate, odds 2.00, 1,000 bets, stake recalculated as a fixed percentage of the current bankroll.
Reading the table, column by column
Risk of ruin. The share of the 20,000 simulated bettors whose bankroll fell below 10% of its starting value at some point. Once you're down 90%, you are, for all practical purposes, finished — recovering requires multiplying what's left by ten just to get back to where you started. At 1–3% staking, this essentially never happens. At 10%, it happens to roughly 1 in 11 bettors. At 20%, it happens to 7 out of 10 — again, to bettors who are winning 55% of their bets.
Chance of losing half the bankroll. Ruin is the extreme case; this column measures the more common disaster. Dropping below half your bankroll is the point where most people abandon their strategy, chase losses, or quit. At 1%, it happened to zero bettors in 20,000 simulations. At 10%, nearly half of all bettors passed through it. At 20%, nine out of ten did.
Chance of ending in loss. After 1,000 bets, what share of bettors finished with less money than they started with? This is the most counterintuitive column in the table. At 1% and 2%, ending in loss is nearly impossible — the edge wins, as it should. But look at the bottom row: at 20% staking, more than half of all bettors finished in loss. Same skill. Same edge. Same 55% of bets won. The stake size alone turned a winning bettor into a losing one.
Median final bankroll. The middle outcome — half of bettors did better, half did worse. Notice the trap: the median grows as stakes rise, all the way up to 150x at 10%. Bigger stakes look better on this column alone. Then it collapses at 20% to 0.87x — below the starting point. This is the column aggressive bettors quote and the reason so many of them go broke: they see the upside and never look left or right at the columns showing what they'll have to survive to reach it.
Typical worst drawdown. The median bettor's largest peak-to-trough fall along the way. This is the column that decides whether you can actually live the strategy. At 1%, the typical worst stretch costs you 16% of your peak — uncomfortable, survivable. At 10%, the typical bettor watches 89% of their peak bankroll evaporate at some point during the 1,000 bets. Almost nobody sits through that. They panic, change strategy, chase, or quit — which means the theoretical returns in the median column are never collected in real life.
Why 1% is the right number — the simple explanation
Strip away the simulation and the logic comes down to four facts.
1. Losing streaks are not bad luck. They are guaranteed. Even winning 55% of your bets, you lose 45% of them — and losses cluster. Over 1,000 bets, a run of seven or eight consecutive losses is close to inevitable, and longer streaks are entirely realistic. At 1% per bet, an eight-loss streak costs you roughly 8% of your bankroll: annoying, forgettable. At 10% per bet, the same streak wipes out more than half of it. At 20%, it takes over 80%. The streak is identical in every case. Only the stake size decides whether it's a rough week or the end of your betting career.
2. Your edge needs time, and big stakes steal your time. A 55% win rate doesn't show up in 10 bets or 50 bets. Over short stretches, randomness dominates completely — a winning bettor can easily go 20–25 in their next 45. Your edge only becomes visible across hundreds of bets. Small stakes guarantee you survive long enough for the math to work in your favor. Big stakes mean one bad — and statistically normal — stretch removes you from the game before your edge ever gets the chance to pay you.
3. Losses are asymmetric: what you lose is harder to win back. Lose 16% of your bankroll and you need a 19% gain to recover. Lose 50% and you need +100%. Lose 89% and you need +809%. This asymmetry is why the table punishes large stakes so viciously: deep drawdowns don't just hurt, they compound against you. Staking 1% keeps every drawdown in the shallow zone where recovery is a matter of routine, not of miracle.
4. The best strategy is the one you'll actually follow. This is the least mathematical point and the most important one. A staking plan only works if you execute it through the losing stretches — and nobody executes calmly while watching 60, 80, 90% of their money disappear. At 1%, no single bet matters and no losing week feels like a crisis, which means you keep making decisions with a clear head. Discipline isn't a personality trait. It's a consequence of a stake size small enough that your emotions never get invited into the process.
The takeaway
The table above describes a bettor most people will never be: 55% at even odds, sustained over 1,000 bets. And even for that bettor, staking 20% per bet produced a losing result more often than a winning one, and staking 10% forced them through a near-90% collapse on the way to their returns.
If aggressive staking can ruin a genuinely excellent bettor, consider what it does to an average one.
That's the entire case for 1%. It doesn't produce the flashiest number in any column — it produces something better: a bettor who is still there after 1,000 bets, whose worst stretch was survivable, whose head stayed clear, and whose edge — if they have one — was given the time it needs to show up.
Stake small. Stay in the game. Everything else in betting depends on that.
Betting involves risk. Nothing here guarantees profit — a 55% win rate at odds of 2.00 is an assumption most bettors never achieve. If betting stops feeling like entertainment, stop, and seek support.