Brand new to sports betting here, and am wondering if there is a technical difference between:

  • The oddsmaker; and
  • The betmaker; and
  • The sportsbook

These terms seem interchangeable on some sites/documents, yet seem to be slightly different concepts on others. I'm talking about legal betting organizations here, not backroom bookies, etc.

  • 2
    Interchangeability is likely to happen when one agent or agency or section has a combined rule, say by both determining odds and taking bets. As for definition, n answer yet. – Nij Oct 20 '17 at 5:44
  • Ah thanks @Nij (+1) so it sounds like the sportsbook is the "agent", the oddsmakers is the odds/stats expert that sets the odds, and the betmaker is an employee of the sportsbook that actually accepts the bet perhaps? Thanks again! – smeeb Oct 20 '17 at 9:30
  • 1
    I might have presumed something similar based on the names and a general understanding of the system for at least one major betting agency, but I do not know for sure, and would not consider that presumption to be an effective answer until I find evidence to support it. Also note a typo in first comment: combined role \rule. – Nij Oct 20 '17 at 10:08


These terms can mean almost the same thing. Here are the simple definitions for the three terms.

An oddsmaker is a person who calculates or predicts the outcome of a contest, as in sports or politics, and sets betting odds.

A betmaker popularly known as bookmaker or bookie, or turf accountant is an organization or a person that accepts and pays off bets on sporting and other events at agreed-upon odds.

A sportsbook is company that accepts bets on sporting events from individual sports bettors.

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