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Poly Chance: Scan volume first, then open a category. Prices are implied probabilities — not guarantees. Start with the reading guide if this is new.

Compare platforms

Side-by-side primers — not rankings. Fees, access, and catalogs change; use these as a starting point for your own due diligence.

Best-of hubs

Best prediction markets in the US

Bankrate how-to-choose for U.S. readers — eligibility, rails, soft Kalshi/Novig; Polymarket geo caveats. Not a tipster ranking.

Best for beginners (compare hub)

Side-by-side beginner fit table + links to the full guide, get-started LP, and US hub.

Pairwise

PolymarketvsKalshi

Polymarket vs Kalshi

Crypto-native global book versus CFTC-regulated U.S. dollar event contracts. Live Polymarket odds; Kalshi Not listed until license.

Polymarket · Kalshi

PolymarketvsPredictIt

Polymarket vs PredictIt

On-chain depth and breadth versus PredictIt’s classic U.S. politics markets. Live Polymarket; PredictIt thin/match-dependent.

Polymarket · PredictIt

KalshivsPredictIt

Kalshi vs PredictIt

Two USD-oriented U.S. options with different regulation and catalogs. Soft CTAs; Kalshi odds Not listed.

Kalshi · PredictIt

PolymarketvsNovig

Polymarket vs Novig

Broad crypto event markets (live odds) versus a U.S. sports-first CFTC DCM. Novig 21+; AZ·MI·NV soft-suppress; Novig odds Not listed.

Polymarket · Novig

KalshivsNovig

Kalshi vs Novig

Two CFTC-regulated USD venues — multi-category Kalshi versus sports-first Novig. Soft CTAs only; both odds Not listed.

Kalshi · Novig

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