Bankroll Management

Bankroll management is the least interesting subject in betting and the one that decides most outcomes. A bettor with mediocre opinions and disciplined staking survives; a bettor with excellent opinions and erratic staking usually does not.

Defining The Bankroll

A bankroll is money set aside exclusively for betting, which you can lose entirely without any effect on your life. Not money you expect to lose — money you could lose.

It should be a fixed sum, decided in advance, held separately from everything else. It should not be topped up from other funds during a losing run, because a bankroll you refill on demand is not a bankroll; it is your general finances with extra steps.

Everything else in staking is a percentage of this number, which is why getting it right first matters. If 1% of your bankroll feels too small to be interesting, the correct conclusion is that the bankroll is too small, not that the percentage should rise.

The Standard: One To Two Percent

One unit equals 1 to 2% of the bankroll, and a normal play gets one unit. Conservative bettors use 1%; aggressive ones use up to 3% and accept much larger swings.

The reason these numbers are small is arithmetic rather than caution. At 5% per bet, a run of ten losses — which a 55% bettor will experience — costs half the bankroll. At 1%, the same run costs a tenth of it and leaves the edge intact to work with.

Surviving The Runs That Will Happen

A 55% bettor placing 500 bets a season should expect, purely from chance, a losing streak of seven or eight and at least one stretch of thirty bets that finishes below break-even.

That is not bad luck, it is the arithmetic of a small edge. Any staking plan that cannot absorb it will fail during a period where nothing has actually gone wrong.

Detail on the shape of these swings is in variance and drawdowns.

What Not To Do

Never chase. Increasing stakes to recover losses is the most reliable path to ruin in betting. See chasing losses and tilt.

No martingale. Doubling after each loss requires an infinite bankroll and books have limits. It converts many small wins into one total loss.

No "lock" sizing. The bets people feel most confident about do not win more often. Certainty is not information.

No borrowed money. Betting with money you need is not a staking error, it is a category error.

Do not skip records. Without tracking you cannot tell whether a bad month was variance or a real decline. See record keeping.

Adjusting The Unit Over Time

Recalculate the unit periodically rather than continuously. Monthly or quarterly is standard: set the unit from the bankroll at the start of the period and leave it alone until the next review.

Recalculating after every bet is technically closer to optimal but psychologically difficult and administratively tedious, and it makes losing runs feel worse as the unit shrinks bet by bet.

The one exception is a serious drawdown. If the bankroll falls 25% or more, recalculating immediately is prudent — a smaller bankroll genuinely warrants a smaller unit, and continuing at the old size after a large loss is chasing by another name. See unit sizing and flat betting versus percentage.

Frequently Asked Questions