Compare
Compare prediction markets for California traders.
Side-by-side comparisons of every major CFTC-regulated prediction market available to Californians. Pick the right platform for your use case: sports, politics, macro, or culture.
Head-to-head breakdowns written for Californians choosing between Kalshi, Polymarket, Sleeper, PrizePicks, and Underdog: covering regulation, fees, market depth, and which fits a state with no legal sportsbook.
ProphetX first if you only trade sports; Kalshi first if you want politics and macro in the same account.
Read the comparisonPolymarket for depth and non-sports markets; ProphetX if you are on Android, desktop, or trade sports only.
Read the comparisonPolymarket first for depth and spreads; Kalshi for breadth and desktop access.
Read the comparisonKalshi for most California traders. Sleeper if your fantasy life already runs through the app.
Read the comparisonChalkboard if you trade player props. Sleeper if you trade games and teams, especially with friends.
Read the comparisonKalshi for dedicated prediction market traders. Crypto.com if you already use it for crypto.
Read the comparisonSleeper if you already use it for fantasy. Rebet if you don't, and want cross-sport social trading.
Read the comparisonNovig for sharp sports trading. Kalshi for broad coverage. Most serious traders use both.
Read the comparisonSleeper today if you want sports. Polymarket as its US politics and culture markets mature.
Read the comparisonSleeper if you want social and fantasy in one app. Novig if you want the sharpest sports pricing.
Read the comparisonKalshi for breadth. Chalkboard for player props. Most serious sports traders stack both.
Read the comparisonKalshi direct for serious traders. Robinhood only if you're already deep in its brokerage app.
Read the comparisonPicking between platforms
Kalshi vs Polymarket: which wins for Californians?
- Kalshi wins on regulation, USD funding, and ease of use. Polymarket wins on market depth and global political coverage, but most Californians start on Kalshi and add Polymarket later for specific markets.
Are Polymarket perpetuals legal in California?
- Yes. Polymarket's 2026 US perpetual-futures product is offered through a CFTC-registered venue and is open to California residents 21+.
What's the best platform for sports prop bets?
- For binary game-outcome markets, Kalshi. For parlay-style player props, Sleeper Picks, PrizePicks, or Underdog Fantasy.