The full guide
Things people get wrong.
Start wherever you like. Each page explains one idea.
Thinking winning means you made a good decision.
You can make a terrible bet and win, or a well-reasoned bet and lose. Judge the decision using what you knew before the result.
02Ignoring the price.
“Who will win?” and “Is this a good bet?” are different questions.
03Not understanding expected value.
How often a bet wins only tells you part of the story. What it pays when it wins matters too.
04Underestimating the house edge.
A small average disadvantage matters more when the same money gets wagered again and again.
05Thinking parlays are a shortcut to making money.
The large payout comes with more things that all have to happen.
06Confusing a streak with skill.
A run of winning bets is real. The explanation for it may still be uncertain.
07Believing you’re due.
Losing five bets doesn’t make the sixth more likely to win.
08Seeing patterns in randomness.
A convincing explanation after a result isn’t the same as a prediction that worked beforehand.
09Chasing losses.
“I need to win $100 back” is information about you, not about whether the next bet is any good.
10Increasing stakes because you’re winning.
A winning streak can make a larger bet feel safer without making it safer.
11Thinking enough research eliminates risk.
More information can improve a prediction. It can’t make an uncertain outcome certain.
12Confusing entertainment with investment.
A balance, a price chart, and detailed analysis don’t make an activity a reliable way to build wealth.
13Ignoring what else the money could do.
Money spent gambling is money you can’t spend on something else.
14Betting money you need for something else.
Being able to place a bet is different from being able to afford the loss.
15Thinking limits are only for people with gambling problems.
A limit is most useful when you set it before you’re caught up in playing.
16Borrowing to gamble.
The bet might lose. The repayment still exists.
17Trying to make gambling a source of income.
Needing to win doesn’t make a win more likely.
18Thinking the company needs you to lose every bet.
Gambling businesses can pay out winners and still make money overall.
19Assuming promotions are free money.
The headline amount doesn’t tell you what you can actually withdraw, or what you have to risk first.
20Forgetting that frequency matters.
A small stake can turn into a lot of wagering when there’s another bet every few seconds.
21Treating winnings as money that doesn’t count.
Money you can withdraw is money you can keep. Losing it is a real cost.
22Thinking small bets mean small total spending.
The first deposit doesn’t tell you what the session cost.
23Calling yourself profitable without a complete record.
A good week, one winning account, and a memorable payout don’t establish an overall profit.
24Betting because you want something to bet on.
The games you follow are over. Now you’re looking through table tennis fixtures you know nothing about.
25Judging your gambling only by what you usually do.
Months of small bets can include one night with much larger losses. That night belongs in the picture too.
26Assuming the only cost is money.
A $5 bet can take the whole evening.
27Using another bet to change how a loss feels.
Sometimes continuing is about keeping open the possibility of a different ending.
28Thinking knowing the odds protects you from losing control.
Understanding gambling and finding it easy to stop are different things.