Bankroll Management: How to Set a Betting Budget and Keep It

What a betting bankroll is (and what it is not)

Your bankroll is the amount of money you set aside for betting, and only for betting. The single rule that defines it: you must be able to lose all of it without anything else in your life changing. Rent, bills, groceries, savings and the money you owe someone stay out of it, whatever happens.

A bankroll is not:

• An investment. Bookmakers build a margin into every price, so over time the average bettor loses money. Our guide to implied probability shows where that margin hides in the odds.
• A target to grow. The point is to cap what betting can cost you, not to turn a small sum into a larger one.
• Elastic. A bankroll that gets “just a little more” when it runs out is not a bankroll, it is a running tab.

Keeping it physically separate helps a lot: only the bankroll sits in your bookmaker accounts, or in a dedicated account or pot that your everyday spending never touches.

How to set your bankroll

Start from your budget, not from betting. Take what comes in each month, remove fixed costs, essentials and what you put aside, and look at what is left for leisure. Your betting budget is a slice of that leisure money, the same way you would budget for going out or a streaming subscription.

There are two common ways to frame it:

• A monthly budget: say $100 a month. Each month starts at $100, whatever happened the month before. Money left over at the end of the month is not a reason to stake more the next one.
• A one-off bankroll for a season or a tournament: say $300 for the whole football season. When it is gone, the season is over for you.

For most people, the monthly version works better because it ties betting to the rest of your spending and resets cleanly. Whatever you choose, write the amount down where you track your bets, so you can compare it with what you actually stake.

How much to bet per bet: units and flat stakes

A unit is a fixed share of your bankroll that you stake on each bet. A common convention is 1 to 2%. With a $500 bankroll, 1% is $5 a bet and 2% is $10 a bet. Staking the same unit on every bet is called flat staking.

Why so small? Because long losing runs are normal, even for bets that look sensible. If you win 45% of your bets, a run of eight losses in a row somewhere in 300 bets is more likely than not (try it with the variance simulator). The unit decides how much of your bankroll such a run takes with it:

With a monthly budget, add one practical check: your unit multiplied by the number of bets you usually place in a month should not exceed the budget. If you place around 25 bets a month on a $100 budget, that means $4 a bet at most.

A unit fixes the stake in advance, whatever the bet. The Kelly criterion sizes it bet by bet instead, from the odds and your own estimate of the chance of winning. Compare the stake it gives with your unit:

Units have a second benefit: they make your results readable whatever the amounts. “Down 12 units this month” means the same thing on a $200 bankroll and on a $2,000 one, and it fits naturally with ROI, which also puts results in proportion to what you staked.

What about the Kelly criterion?

Kelly is a formula that sizes each stake from your “edge”, the gap between the true probability of an outcome and the one the odds imply. It only works if you know that true probability better than the bookmaker does, and almost nobody can measure that. Overestimate your edge and Kelly tells you to stake far too much. For keeping a budget under control, it is the wrong tool. The calculator above shows what it asks for from your own estimate, in full, half and quarter Kelly, and how a few points of overconfidence change the stake. The Kelly calculator also has a page of its own, with the formula explained.

Set your limits before you bet

Limits only work if you decide them with a clear head, before the first bet, rather than in the middle of a match. A simple set:

• A spending limit: the bankroll itself. When it is gone, the month (or the season) is over.
• A loss limit per day or week: for example, stop for the day after losing five units.
• A time limit: no betting after a certain hour, or no live betting at all if that is where your stakes get away from you.

Licensed bookmakers in many countries let you set deposit limits, and often loss or session limits, from your account settings. Use them: a limit set in advance holds better than willpower at 11 p.m.

Chasing losses, and its mirror image

Chasing losses means raising your stakes, or betting more often, to win back money you have lost. It feels logical in the moment (“I’m due a win”), but every bet is independent of the last one. Bigger stakes after a loss only mean bigger losses, faster, and it is the most common way a budget breaks.

The signs are easy to spot in a record, much harder in the moment:

• Your stakes rise after losing days.
• You bet on sports or markets you don’t usually touch, because they are on now.
• Late-night live bets, placed quickly, one after the other.
• A bet placed “to get back to even” rather than because you wanted to bet on that match.

This is where tracking your bets pays off: compare your average stake after a loss with your average stake after a win. BetTrack’s analysis also points it out when your biggest stakes are your worst bets.

After a winning run, keep the same stakes

Winning runs happen by chance too, and raising stakes because you are “playing with the bookmaker’s money” is the mirror image of chasing. That money is yours now. Keep your unit until your planned review, recalculate it from the bankroll you set rather than from a peak, and if you withdraw winnings, record the withdrawal so your numbers stay true.

Progressions and the martingale

Progressions raise the stake after a loss. The best known, the martingale, doubles it each time, hoping one win covers everything. Starting at $5, six losses in a row mean stakes of $5, $10, $20, $40, $80 and $160: $315 lost, and the next bet needs $320 to win back a $5 profit. It is the opposite of bankroll management, and it does not change the bookmaker’s margin either.

One bankroll per strategy

If you bet in very different ways, say pre-match football singles and live tennis, separate bankrolls keep the results of each apart. You see which one costs you more, and a bad run in one does not hide inside the other.

In BetTrack, each bankroll has its own starting amount, deposits, withdrawals and balance chart, and you switch between them in one tap. The free plan includes two bankrolls; BetTrack Pro allows as many as you need.

One rule still applies: added together, your bankrolls must fit inside the budget you set. Splitting $100 into three bankrolls does not make it $300.

Review your bankroll once a month

Once a month, take fifteen minutes with your numbers, from your app or your betting spreadsheet, and go through this list:

1. Total staked against your budget. Did betting cost what you planned, or more?
2. Net result, in money and in units.
3. ROI, to compare this month with previous ones.
4. Max drawdown: the deepest fall of your balance from a high point. It tells you how hard your worst run hit, and whether your unit was sized for it.
5. Your stakes: did they stay flat, or creep up after losses or wins?
6. Your limits: did you keep every one of them?

Then set next month’s bankroll from your budget, not from this month’s result. A good month is not a reason to stake more, and a bad one is not a reason to try to make it back.

When the plan stops working

Bankroll management assumes you can stick to the rules you set. If you keep breaking your limits, topping up the bankroll, hiding how much you bet or betting with money meant for something else, the problem is no longer the plan. That is the moment to take a break, use your bookmaker’s self-exclusion tools, and talk to someone.

Frequently asked questions