How does gambling work?

Where the margin comes from

In a casino it is written into the rules of the game. Thirty five to one on a thirty six to one shot, over and over, at whatever pace the game runs.

In a sportsbook it is added to the prices. Both sides of a market are shaded so the implied probabilities total more than a hundred percent, and the excess is the book's cut whichever way the game goes.

In poker the house takes a rake from the pot and does not care who wins at all.

What happens after you tap

For a slot: the app requests an outcome from a certified random number generator on the operator's servers, gets a result, then animates reels that were never spinning. The animation is theatre for a decision already made.

For a sports bet: the slip is sent, the price is checked, and you get an accept or a bounce. Live markets reprice several times a second, which is why in-play slips get rejected far more often than pre-match ones.

For a live table: a physical card is read by camera and settled across every seat at once.

The money side

Deposits are instant, because a deposit costs the operator nothing. Withdrawals go through a review queue, a payment processor and often an identity check.

Across the operators we track, the typical wait to a bank account is measured in hours and the spread across the board is enormous. That gap is the most useful thing to know about any gambling company and it is the only thing our cashout board is about.