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REGULATION 60-second read

Polymarket & Underdog sue Ohio’s regulator over sports contracts

Published: 1 min read
An empty state regulatory hearing room with rows of vacant chairs facing a raised bench.

Three firms remain undecided while Polymarket & Underdog Predict sue the regulator.

The hit

Robinhood, Gemini, Moomoo Financial & Plus500US have complied, joining Coinbase, the Ohio Casino Control Commission says. That brings compliance to 5 of 10 firms targeted after the regulator’s cease-&-desist letters.

Why it matters

The OCCC treats sports event contracts as illegal gambling under state law, not federally regulated derivatives. For bettors, that means fewer places in Ohio to trade these markets as firms exit rather than fight. For the holdouts, GamblingNews says the OCCC is likely to gain the upper hand in any legal battle.

The record

Firms targeted by Ohio’s regulator 10
Kalshi court ruling Sixth Circuit Court of Appeals ruled against Kalshi, late September
Firms suing the OCCC Arguing federal rules apply

What happens next

Watch for rulings in the lawsuits, plus whether Novig, ProphetX or Webull Financial follow the firms that have already complied.

Sources: Sports Event Contracts on Their Way Out in Ohio

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