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Sports Betting · Education

Betting 101

Plain-English guides to how sports betting works. All numbers in examples are made up for illustration. Education and entertainment only — not betting advice.

21+ only. Gamble responsibly. Sports betting is only legal in some states; check the laws where you live. Content is for entertainment and information only, not betting advice. If you or someone you know has a gambling problem, call 1-800-GAMBLER.
A small betting shop storefront in Northern IrelandBetting 101

American, Decimal & Fractional Odds

Three ways to write the same price.

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The race and sportsbook at a Las Vegas casino, with odds boards above rows of seatsBetting 101

Implied Probability

What the price says about the chances.

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Empower Field at Mile High, NFL stadiumBetting 101

Moneylines

Just pick the winner.

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Exterior of Empower Field at Mile HighBetting 101

Point Spreads

Handicapping the favorite.

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Panorama of Coors Field during a Colorado Rockies gameBetting 101

Totals (Over/Under)

Bet on the combined score.

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Printed sports betting tickets showing multiple selectionsBetting 101

Parlays

Bigger payout, much harder to hit.

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A sportsbook built into the ballpark complex at Wrigley Field in ChicagoBetting 101

Prop Bets

Bets on what happens inside the game.

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Panorama of Coors Field during a Colorado Rockies gameBetting 101

Futures

Long-range bets on the season.

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A small betting shop storefront in Northern IrelandBetting 101

The Vig (Juice)

How the house gets paid.

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The race and sportsbook at a Las Vegas casino, with odds boards above rows of seatsBetting 101

Line Shopping

Compare prices before you bet.

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A self-service sports betting kioskBetting 101

How the Major Platforms Compare

A neutral overview — no promos, no affiliate links.

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