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Legal US Sportsbooks — Live Odds Compared

Every regulated US sportsbook, plus the two big CFTC-regulated event-contract exchanges (Kalshi and Polymarket), in one place. Live odds refresh continuously. Compare any pair of books or any book vs Kalshi / Polymarket below.

Regulated US Sportsbooks

DraftKingsBroad
Live in 25+ states
Edge: Industry-leading SGP (same-game parlay) market, deepest player-prop tree in MLB and NBA.
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FanDuelBroad
Live in 25+ states
Edge: #1 US market share by revenue. Strong NFL/NBA totals & spreads. Best-in-class UX.
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BetMGMBroad
Live in 28 states
Edge: Strong NCAAF/NCAAB lines. MGM rewards tie-in (comps + Vegas perks).
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Caesars SportsbookBroad
Live in 25+ states
Edge: Caesars Rewards integration with the casino loyalty program is the best comps tie-in in betting.
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BetRiversMedium
Live in 16 states
Edge: iRush Rewards is the most generous loyalty program in regulated US betting.
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Fanatics SportsbookMedium
Live in 24 states (rapid expansion)
Edge: FanCash rewards convert directly to Fanatics retail credit — unique to apparel buyers.
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Circa SportsNiche
Nevada (kiosk + app); Colorado, Iowa, Illinois, Kentucky retail
Edge: Highest limits in the regulated US market. Sharp-friendly. Hosts the $14M+ Million contest.
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Event-Contract Exchanges

KalshiExchange
All 50 states (CFTC-regulated event contracts)
Edge: CFTC-regulated event-contracts exchange — sports markets as event contracts, not 'bets'. No vig in the traditional sense; spread is bid/ask.
vs DraftKingsvs FanDuelvs BetMGMvs Caesars Sportsbookvs BetRiversvs Fanatics Sportsbookvs Circa Sports
PolymarketExchange
Operates US after legal reentry mid-2025
Edge: Largest crypto-rails prediction market by volume. Sports verticals growing fast post-relaunch.
vs DraftKingsvs FanDuelvs BetMGMvs Caesars Sportsbookvs BetRiversvs Fanatics Sportsbookvs Circa Sports

Head-to-Head Comparisons

Every pair of regulated US sportsbooks compared on live odds.

DraftKings vs FanDuel →DraftKings vs BetMGM →DraftKings vs Caesars Sportsbook →DraftKings vs BetRivers →DraftKings vs Fanatics Sportsbook →DraftKings vs Circa Sports →FanDuel vs BetMGM →FanDuel vs Caesars Sportsbook →FanDuel vs BetRivers →FanDuel vs Fanatics Sportsbook →FanDuel vs Circa Sports →BetMGM vs Caesars Sportsbook →BetMGM vs BetRivers →BetMGM vs Fanatics Sportsbook →BetMGM vs Circa Sports →Caesars Sportsbook vs BetRivers →Caesars Sportsbook vs Fanatics Sportsbook →Caesars Sportsbook vs Circa Sports →BetRivers vs Fanatics Sportsbook →BetRivers vs Circa Sports →Fanatics Sportsbook vs Circa Sports →

FAQ

Which legal US sportsbook has the best odds?
No single book leads on every market. On major-league game lines (MLB, NBA, NFL, NHL) DraftKings and FanDuel typically lead market depth; BetMGM and Caesars often lead promo-adjusted EV; Circa leads sharp-friendly limits in Nevada. SportsBookISH live-compares all of them on every event so you can pick per-bet rather than committing to one book.
How does Kalshi compare to traditional sportsbooks?
Kalshi is a CFTC-regulated event-contracts exchange — sports markets trade as YES/NO contracts at user-set prices, not at house-set vigged odds. On major-league moneylines Kalshi mid-prices typically beat the sportsbook no-vig fair line by 2-8 percentage points; the gap widens on futures and player props.
Is Polymarket legal in the US?
Polymarket relaunched US operations in mid-2025 as a CFTC-regulated event-contracts platform. Sports markets are growing fast. Liquidity is concentrated on major events; SportsBookISH overlays Polymarket pricing on every event where it's available.
Why do you only show 7 sportsbooks?
SportsBookISH only names regulated US sportsbooks operating under state gaming licenses. Offshore brands (Bovada, BetOnline, MyBookie, etc.) contribute to the consensus median anonymously as 'Other' but are never named — their use in the US is unregulated and we don't promote them.