What is Sportsbook?
American term for a bookmaker — a licensed operator accepting sports bets.
Definition
Sportsbook is the standard US term for a betting operator. Online sportsbooks like DraftKings, FanDuel, BetMGM, Caesars, ESPN BET and Fanatics dominate the post-PASPA US market in the 38+ states with legal sports betting. The product is functionally identical to a European bookmaker — pricing markets, taking wagers, paying winners — but US sportsbooks default to American odds and lean heavily on parlay and same-game-parlay product flows.
Example
DraftKings, FanDuel and BetMGM are the top three sportsbooks by handle in the US legal market.
Related terms
More from this category: Betting Basics
FAQ
What does "Sportsbook" mean in sports betting?
American term for a bookmaker — a licensed operator accepting sports bets.
How is "Sportsbook" used at the FIFA World Cup 2026?
Sportsbook applies to every World Cup 2026 match in the same way as any other regulated sports event. Fan Bet Odds tracks the relevant prices and lines across Bet365, Pinnacle, DraftKings, BetMGM and other licensed bookmakers — see the match prediction and odds pages for live application.
Where can I see "Sportsbook" in action on Fan Bet Odds?
Sportsbook appears throughout our match prediction pages (/odds/predictions/match/[slug]), market deep-dives (/odds/predictions/match/[slug]/[market]) and bookmaker reviews (/bet/bookmakers/[slug]). Use the related terms below to navigate the broader glossary.
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