DFS vs Prediction Markets in California: What's Legal and What's Not
PrizePicks, Underdog and Sleeper live in a legal gray area in California — while Kalshi and Polymarket are federally regulated. Here's the difference in plain English.
- Kalshi and Polymarket are CFTC-regulated Designated Contract Markets — federally legal in CA.
- PrizePicks, Underdog and Sleeper pick'em products are the target of a July 2023 CA AG opinion.
- Salary-cap DFS (DraftKings/FanDuel) has coexisted with CA law for a decade — no state license, no enforcement.
- There are no legal state-licensed online sportsbooks in California (Props 26 and 27 failed in 2022).
- If you want the safest legal footing in CA, Kalshi and Polymarket are the correct choice today.
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Quick answer
CFTC-regulated prediction markets like Kalshi and Polymarket are federally legal in California — they operate as Designated Contract Markets under the Commodity Exchange Act. DFS pick'em products (PrizePicks, Underdog, Sleeper) are in a legal gray area: in July 2023 the California Attorney General issued a formal opinion that pick'em-style DFS constitutes illegal sports wagering under state law. The operators are still active in the state, but the enforcement risk is theirs to absorb. [source: CA AG Opinion No. 23-1201]
The three legal buckets
| Product type | Regulator | CA status | Example |
|---|---|---|---|
| CFTC event contracts | CFTC (federal) | Legal, federally preempted | Kalshi, Polymarket |
| Salary-cap DFS | None specific | Tolerated / gray | DraftKings DFS, FanDuel DFS |
| Pick'em DFS | None; CA AG opinion says unlawful | Contested gray | PrizePicks, Underdog, Sleeper |
| Online sportsbooks | State (would need license) | Illegal — Props 26/27 failed 2022 | None available in CA |
Why Kalshi and Polymarket are the clean answer
Event contracts trade on federally-regulated Designated Contract Markets. The CFTC's exclusive jurisdiction was affirmed by the Third Circuit in the KalshiEX litigation, and Kalshi has since won state-level challenges in New Jersey and Nevada. No state gambling regulator has successfully blocked a CFTC-listed event contract. That's why we recommend Kalshi as the default for California residents.
Why pick'em DFS is different
- •The CA AG's July 2023 opinion said pick'em contests are 'wagers on the outcome of sporting events' — which requires a state gambling license California has never issued for online sports betting.
- •PrizePicks and Underdog have restructured their California products (peer-to-peer 'Arena' contests) to try to fit the fantasy carveout.
- •The Bureau of Gambling Control has issued cease-and-desist letters; the operators have sued in state and federal court.
- •No California resident has been criminally prosecuted for playing DFS, but the operators face potential civil enforcement.
What about traditional salary-cap DFS?
DraftKings and FanDuel's classic salary-cap DFS has operated in California since 2013 without a state license, under the industry's argument that salary-cap DFS is a 'game of skill' outside California's gambling code. The AG's 2023 opinion focused specifically on pick'em; classic DFS remains in the same gray zone it has occupied for a decade.
The bottom line for a California trader
- 1.For the cleanest legal footing: use Kalshi or Polymarket — federally regulated, no state gambling law question.
- 2.For classic DFS: DraftKings and FanDuel are still active in CA, at their own regulatory risk.
- 3.For pick'em DFS: PrizePicks, Underdog and Sleeper are contested; play with money you can afford to see frozen if enforcement escalates.
- 4.For online sportsbooks: there are none legally available in California. Ignore the offshore sites — those are unlicensed and unregulated.
How this could change
- •The CA AG could bring an enforcement action against a pick'em operator — most likely trigger
- •A federal court could rule on the DFS-vs-sports-betting question — pending in the 9th Circuit
- •A 2026 or 2028 ballot initiative could relegalize online sports betting (unlikely; would need tribal buy-in)
Last reviewed by Catie Di Stefano on August 7, 2026. We re-verify market prices, polling, and citations on every update.
Frequently Asked Questions
Related guides
Pillar pages
Sources & references
- 1.Commodity Futures Trading Commission — Event Contracts — CFTC.gov
- 2.CFTC Final Rule on Event Contracts — CFTC.gov
- 3.California Bureau of Gambling Control — California Department of Justice
- 4.California Penal Code §§330–337z — Gambling — California Legislative Information
- 5.CalMatters — Nonpartisan California news — CalMatters
External links open in a new tab. We cite primary regulatory and major news sources where possible. Citations to trusted regulators (CFTC, SEC, IRS, NOAA, .gov, .edu) are dofollow; commercial outbound links are not endorsements.
Catie Di Stefano has spent 15 years working with online gambling across some of the most regulated and competitive gambling markets in the world.
Starting at Betsson Group in Malta in 2011, she has in recent years worked her way through VIP management, CRM, gamification and marketing leadership across European and North American operations. Catie was a licensed consultancy for Hard Rock Casino in New Jersey, where she held a DGE vendor license and owned the execution of the online CRM program from launch day in 2018.