ProphetX Review

Quick answer

ProphetX is a sports-first prediction market where you trade event contracts with other users. ProphetX LLC has been a CFTC-designated contract market since June 11, 2026. It is third in our Florida ranking, rated 4.7 out of 5. Offer for new users: Trade $40, Get $40 with code MIAPREDICTS (valid in 49 states plus D.C., not Nevada).

Scope

Sports-first

Model

Peer-to-peer exchange

Welcome offer

Trade $40, Get $40 · code MIAPREDICTS

Florida access

Available (as of October 3, 2026)

Platforms

Web · mobile app

Age

18 (or the local age of majority if higher); we recommend 21+

Our verdict

ProphetX is third in our Florida ranking, rated 4.7 out of 5, and our pick for sports-only traders. It is a sports-native prediction market where you trade contracts with other users, and its offer is Trade $40, Get $40 with code MIAPREDICTS. If you also want politics, economics or culture markets, pair it with Kalshi.

Scorecard

Trust & Regulation 4.5 / 5

Liquidity 4.0 / 5

User Experience 4.7 / 5

Bonus Value 4.5 / 5

FL Availability 5.0 / 5

Welcome offer

Trade $40, Get $40 · code MIAPREDICTS

Sign up via our link, enter promo code MIAPREDICTS and trade $40 in qualifying sports event contracts within 30 days; the $40 is credited as $10 on day 1, $10 on day 8 and $20 on day 15, and each credit must be used within 45 days. New users only; eligibility and terms are set by ProphetX and confirmed at signup. Not available in Nevada. Trading involves risk — you can lose the money you trade.

Code: MIAPREDICTS

ProphetX for Florida traders

• Florida is on the list of states where ProphetX's MIAPREDICTS offer is valid.
• For Florida sports fans: Dolphins, Buccaneers and Jaguars (NFL), Heat and Magic (NBA), Panthers and Lightning (NHL), Marlins and Rays (MLB), plus Florida, Miami and FSU college football.
• Florida's only licensed online sportsbook is Hard Rock Bet, under the Seminole Tribe compact. ProphetX is not a sportsbook, so it sits outside that arrangement; see our Florida legality guide for where the 2026 federal court split leaves Florida.
• Florida has no state income tax, so there's no state tax on winnings; federal tax still applies.

Pros

• Trade $40, Get $40 — the largest welcome offer among the exchanges on this page
• Peer-to-peer exchange: you trade against other users
• NFL, NBA, college and soccer coverage including player markets
• Works on the web and in the mobile app

Cons

• Built around sports — check the app for other markets
• Newer exchange, so niche markets can be thinner than on Kalshi

Key features

• Sports event contracts (check the app for other markets)
• Peer-to-peer exchange pricing — you trade against other users
• Web and mobile app
• Welcome offer valid in 49 states plus D.C. (not Nevada)

What is ProphetX?

ProphetX is a sports-native prediction market. Instead of taking a price from a house, you trade Yes/No event contracts with other users on game and player outcomes. ProphetX LLC has been a CFTC-designated contract market since June 11, 2026; its welcome offer covers 49 states plus D.C. (not Nevada).

Built around sports

This is the key difference from Polymarket and Kalshi: ProphetX is built around sports; it has also certified election contracts with the CFTC (September 2, 2026). NFL, NBA, WNBA, college football and basketball, soccer including the 2026 World Cup, tennis, golf, UFC and boxing. Check the app for other markets; the sports focus keeps the app simple but means it is not a one-app solution.

Peer-to-peer pricing

You are matched against other traders rather than a bookmaker. ProphetX charges 2% of your net winnings per market on straight trades. On long-tail props you may need to leave a resting order and wait for a match.

Welcome offer — Trade $40, Get $40

Sign up through our link, enter MIAPREDICTS at registration, and trade $40 in qualifying sports contracts within 30 days. ProphetX then credits $40 in three parts: $10 on day 1, $10 on day 8 and $20 on day 15. Each credit must be used within 45 days, and winnings can be withdrawn after the trades settle. One offer per person. It is the largest welcome offer among the exchanges on this page.

App and everyday experience

ProphetX works on the web (prophetx.co) and in its mobile app. The lobby leads with the day's games, liquidity is shown on each market, and positions can be closed before settlement. Deposit limits and responsible-trading controls are available in the account settings.

Florida availability

ProphetX's status in Florida is Available (as of October 3, 2026), and Florida is on the list of states where the MIAPREDICTS offer is valid. For Miami traders that means Dolphins, Heat, Panthers, Marlins, Inter Miami and Florida college markets are all in scope, alongside the 2026 World Cup fixtures hosted at Hard Rock Stadium.

Verdict

Third in our Florida ranking and our pick for anyone who only cares about sports. Use ProphetX (code MIAPREDICTS, Trade $40, Get $40) for game-day contracts and pair it with Kalshi, first in our ranking, when you want politics, economics and culture markets as well.

ProphetX fees

Deposits & withdrawals

State availability

ProphetX's MIAPREDICTS offer is valid in 49 states plus D.C. (not Nevada).

View all eligible states

• Alabama
• Alaska
• Arizona
• Arkansas
• California
• Colorado
• Connecticut
• Delaware
• District of Columbia
• Florida
• Georgia
• Hawaii
• Idaho
• Illinois
• Indiana
• Iowa
• Kansas
• Kentucky
• Louisiana
• Maine
• Maryland
• Massachusetts
• Michigan
• Minnesota
• Mississippi
• Missouri
• Montana
• Nebraska
• New Hampshire
• New Jersey
• New Mexico
• New York
• North Carolina
• North Dakota
• Ohio
• Oklahoma
• Oregon
• Pennsylvania
• Rhode Island
• South Carolina
• South Dakota
• Tennessee
• Texas
• Utah
• Vermont
• Virginia
• Washington
• West Virginia
• Wisconsin
• Wyoming

How we tested

Catie opened and funded an account on ProphetX with her own money (about $200), placed real trades and withdrew.

Ready to try ProphetX?

Trade $40, Get $40 · code MIAPREDICTS

Visit ProphetX (opens in a new tab) Compare all apps

Sources & references

1. Commodity Futures Trading Commission: Event Contracts (opens in a new tab), CFTC.gov
2. KalshiEX LLC: DCM Registration (opens in a new tab), CFTC.gov
3. Reuters: Kalshi wins court battle to offer election contracts (opens in a new tab)
4. Wall Street Journal: Prediction markets coverage (opens in a new tab)
5. National Council on Problem Gambling: 1-800-GAMBLER (opens in a new tab), NCPG

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.