Odds Desk

Responsible gambling

What a negative expected return actually means over time, the warning signs that matter, and where to get help.

This site explains how casino games work. That explanation is incomplete without the part below.

The arithmetic does not have a good ending

Every game described on this site has a negative expected value. Correct strategy reduces the rate of loss; it does not reverse the sign. There is no bet, sequence of bets, staking plan, or bankroll size that makes a negative-expectation game profitable over time. Systems that appear to work — Martingale and its relatives — work by trading many small wins for rare catastrophic losses, and they lose money at exactly the same rate per unit wagered as flat betting.

Concretely: at 1% house edge, betting $25 per hand at 60 hands an hour, the expected cost is $15 an hour. At 5.26% — an American roulette wheel at the same pace — it is $79 an hour. This is the price of the entertainment. If it is worth that to you, it is worth it. If you are betting to recover money, the arithmetic is working against you every hour.

Signs that it has stopped being entertainment

Any one of these is worth taking seriously. Several together is a pattern.

Practical limits that work

Set them before you play, not during. The decision made in advance is a different decision from the one made at the table.

Where to get help

United States — National Council on Problem Gambling: call or text 1-800-GAMBLER, 24/7, free and confidential. ncpgambling.org

United Kingdom — National Gambling Helpline: 0808 8020 133. begambleaware.org

Canada — provincial helplines; the Ontario line is 1-866-531-2600.

Australia — Gambling Help Online: 1800 858 858. gamblinghelponline.org.au

Gamblers Anonymous — international meeting directory at gamblersanonymous.org

Help is free. Nobody legitimate charges a fee to help you stop gambling, and nobody legitimate charges a fee to recover money you have lost.