Bankroll Management: What Units Actually Mean
Published 28 August 2026 · BetsToday Research
Here is an uncomfortable fact: you can have a genuine, mathematically provable edge and still lose all your money. Not through bad luck alone, but through staking. Bankroll management is the difference between an edge that compounds and an edge that goes bust during a normal losing run.
What a unit is
A unit is a fixed percentage of your total bankroll — the money you have set aside specifically for betting and can afford to lose entirely. Most disciplined bettors use 1% as one unit.
Bankroll €5,000 → 1 unit = €50
This is why tipsters report results in units rather than currency. “+18 units” means the same thing to someone betting €5 a unit and someone betting €500 a unit. It makes results comparable and honest, and it stops anyone hiding a bad record behind big-money screenshots.
Why you must scale to bankroll, not feeling
Staking a fixed percentage means your stake shrinks automatically when you are losing and grows when you are winning. That single property is what protects you from ruin. If you flat-stake €50 regardless of whether your bankroll is €1,000 or €200, you are betting 5% then 25% of your capital — a level at which a normal losing run wipes you out.
How long losing runs really get
This is the part most people underestimate badly. Even with a profitable strategy, extended losing streaks are not just possible, they are statistically expected.
| Strike rate | Typical odds | Losing run to expect in 500 bets |
|---|---|---|
| 55% | 1.90 | 8–9 in a row |
| 40% | 2.80 | 12–13 in a row |
| 30% | 4.00 | 17–19 in a row |
| 20% | 6.00 | 26–29 in a row |
Approximate expected maximum consecutive losses over a 500-bet sample.
A bettor taking value at odds around 4.00 should mentally prepare for eighteen straight losses at some point. At 1 unit per bet that is an 18% drawdown — survivable. At 5 units per bet it is a 90% drawdown, and the account is effectively dead even though the strategy was never wrong.
Flat staking versus the alternatives
Flat staking — the same 1 unit on every bet — is the most robust approach and what we would recommend to anyone starting out. It requires no probability estimate beyond “this is a value bet”, and it is very hard to blow up with.
Confidence-weighted staking varies the stake between roughly 1 and 5 units based on how large the model’s edge is. This is what we use on BetsToday picks — a 5-unit pick means the model found a much bigger gap against the bookmaker’s price than a 1-unit pick. It improves returns but only if your confidence ratings are genuinely calibrated.
The Kelly criterion mathematically maximises long-run growth by staking a fraction based on your edge and the odds:
b = decimal odds − 1
p = your probability of winning
q = 1 − p
Full Kelly is theoretically optimal but brutally volatile, and it assumes your probability estimates are exactly right — which they never are. Overestimate your edge slightly and Kelly overstakes badly. Most serious bettors use quarter or half Kelly for this reason.
Staking systems that destroy accounts
- Martingale (doubling after a loss). Feels logical, guarantees ruin. Ten consecutive losses — which the table above shows is routine — requires a 1,024× stake to recover, far beyond both your bankroll and the bookmaker’s limits.
- Chasing losses. Increasing stakes to “win it back” after a bad day converts a normal drawdown into a permanent one. The bets you place while tilted are also your worst-judged ones.
- Increasing stakes on “certainties”. There are no certainties. The subjective feeling of confidence is uncorrelated with actual probability, which is exactly why models exist.
A simple, workable framework
- Set a bankroll you can genuinely afford to lose, separate from everyday money.
- Define 1 unit as 1% of it. Recalculate monthly, not after every bet.
- Cap any single bet at 5 units regardless of how strong it looks.
- Never increase stakes to recover losses — the plan does not change because you are down.
- Track every bet in units, and judge performance over 300+ bets rather than any single week.
- Set a stop-loss: if you drop 30% of your bankroll, stop and review the strategy instead of pushing.
Every BetsToday pick includes a unit size
We publish the stake size alongside every pick so you can apply it to whatever bankroll you have, and our full record is tracked in units — including the losing runs.
View the track recordThis article is educational content only and is not financial or gambling advice. Betting involves risk and you can lose money. Never stake money you cannot afford to lose. If betting is causing you difficulty, our responsible gambling page lists free confidential support services.