Bankroll management is the difference between bettors who last and bettors who blow up. You can pick winners at a good rate and still go broke if your stakes are too big, because losing runs are a mathematical certainty. A bankroll plan does one job: it keeps you in the game long enough for your edge to show up. Everything else in betting is secondary to that.

Your bankroll is money you can afford to lose, kept separate from rent, bills and savings. Decide the total amount first, then never add to it in the middle of a losing run to chase losses. A common starting point is $500 to $1,000 for a recreational bettor, split into units of 1 percent. With a $1,000 bankroll, one unit is $10. Standard bets are one to two units, strong opinions are three units, and nothing is ever five units or more. This structure means a run of ten straight losses costs 10 to 20 percent of your bankroll, not half of it, and you can rebuild from there.

Flat staking means betting the same amount on every bet, usually 1 to 2 percent of your starting bankroll. It is simple and it works. Percentage staking means recalculating your stake as a percentage of your current bankroll, so stakes grow when you win and shrink when you lose. Percentage staking protects you during bad runs but slows recovery, because your stakes are smallest exactly when you need them to be bigger. For most bettors, flat staking with a quarterly review is the best compromise: keep stakes fixed for three months, then adjust the unit size up or down based on the new bankroll. Avoid variable staking systems that increase stakes after losses, because they turn normal losing runs into bankroll-ending disasters.

Take a bettor with a $1,000 bankroll staking 2 percent, or $20, per bet. A run of ten consecutive losses costs $200, leaving $800. The same bettor staking 10 percent, or $100, per bet loses $1,000 and is finished. Now consider a bettor with a genuine 5 percent edge betting at average odds of 2.00. Even with that edge, the chance of a ten-bet losing run over the course of 500 bets is high. The flat-staking bettor survives it and keeps betting into the edge. The aggressive bettor does not. The maths is simple: your edge only pays if you are still betting when it shows up, and staking is what decides whether you are still betting.

Set a weekly loss limit, such as 10 percent of your bankroll, and stop betting when you hit it. Never borrow money to bet, and never bet with money earmarked for something else. Keep a record of every bet: date, market, odds, stake and result. Review the record monthly and be honest about which markets are making money and which are losing it. Separate your betting money from your daily spending by using a dedicated account or e-wallet, so you can see the bankroll clearly and cannot accidentally spend it. If you find yourself increasing stakes to recover losses, stop for the week: that impulse is the single most common cause of blown bankrolls.

How big should my bankroll be? Only money you can afford to lose, and at least 50 times your average stake so normal variance does not wipe you out. Should I use the Kelly Criterion? Kelly is powerful but aggressive; most bettors should use a fraction of full Kelly, such as quarter Kelly, or stick with flat staking. How do I know if my staking is working? After 200 or more bets, compare your actual return with your expected return; if the gap is large, your staking or your selection needs work.