Czech Regulator Blocks Polymarket via ISPs in Prediction Market First

What Happened

Czech regulators have moved against Polymarket, the prediction market platform, by adding it to the country's list of unauthorised internet games and ordering ISPs to block access at the network level. It's a meaningful step beyond a simple cease-and-desist: forcing ISPs to act puts the enforcement burden on infrastructure rather than relying on users or the platform to comply voluntarily.

Jan Řehola, Director of the Institute for Gambling Regulation, made the regulator's reasoning explicit — player protection obligations don't bend to how a platform chooses to describe its own product. Whether a service calls itself a "prediction market," a "forecasting tool," or anything else, Czech authorities are applying gambling regulation to the activity if it fits that profile.

Why the Framing Matters

The Řehola comment is the sharpest signal here. Regulators across the EU have been watching prediction markets grow — partly because the category has tried to position itself outside traditional gambling frameworks by leaning on "information markets" or "forecasting" language. The Czech action suggests that framing won't hold up under scrutiny if the underlying mechanism involves staking money on uncertain outcomes. That's a live question for operators and investors who've treated prediction markets as a regulatory grey zone with room to manoeuvre.

Enforcement Mechanism Sets a Template

ISP-level blocking is significant because it mirrors the tool set already used against unlicensed sportsbook and casino operators in the Czech Republic and elsewhere in Europe. By applying the same mechanism to a prediction market, Czech authorities are effectively classifying the product category under the same enforcement regime — not creating a new one, but extending an existing one. That's a faster path to enforcement than drafting bespoke regulation.

Operator Takeaway

For licensed operators watching from the sidelines, a few things are worth tracking:

• Any platform offering prediction-style products into Czech or broader EU markets without local authorisation is now on notice that ISP blocking is on the table, not just future-tense speculation.
• The "we're not gambling" argument has been explicitly rejected at director level by at least one EU regulator.
• Licensed operators building or acquiring prediction market features should assume regulators will apply existing gambling frameworks first and ask questions later.

The compliance question isn't whether prediction markets will face regulation — it's how quickly the rest of the EU follows the Czech template.