Google Blocks Prediction Market Ads in Ohio
Google has updated its advertising policy to block prediction market ads in Ohio, affecting operators such as Kalshi and Polymarket.

Google has updated its advertising policies to prohibit prediction market advertisements from appearing in Ohio, adding another obstacle for operators as regulatory scrutiny of the industry continues to grow.
The change affects platforms such as Kalshi and Polymarket, both of which have expanded their marketing efforts in recent months as prediction markets become increasingly visible to mainstream audiences. According to reports, Google will no longer allow prediction market ads to be served to users in Ohio following legal and regulatory developments surrounding the sector.
The move comes as prediction market operators continue arguing that their products are federally regulated event contracts overseen by the Commodity Futures Trading Commission (CFTC). State regulators, gaming authorities, and attorneys general in several jurisdictions have challenged that position, particularly when sports-related contracts are involved.
Ohio Remains a Key Battleground
Ohio has emerged as one of the most closely watched states in the prediction market debate.
Earlier this year, a federal judge ruled that Kalshi's event contracts constituted gambling activity under Ohio law, siding with the Ohio Casino Control Commission rather than the CFTC. Kalshi has since indicated it intends to appeal the decision, maintaining that prediction markets fall under federal oversight.
Google's decision does not prohibit prediction market platforms from operating in Ohio, nor does it represent a direct regulatory action. Instead, it limits how operators can promote their products through one of the largest digital advertising networks in the world. For companies seeking to attract new users, the restriction could reduce visibility in a state that remains at the center of the industry's legal battles.
Pressure Continues to Build Around Prediction Markets
The advertising restriction arrives during a period of heightened scrutiny for prediction market operators.
Several states have pursued legal action against platforms offering event contracts, while lawmakers and regulators continue debating whether prediction markets should be treated as financial products, gambling products, or a combination of both. Recent disputes involving Minnesota, Nevada, Wisconsin, and New Mexico have further highlighted the growing divide between state regulators and operators that claim federal protection through the CFTC.
Questions surrounding consumer protection have also become more prominent. Last week, lawmakers introduced legislation seeking a federal study into gambling disorder and the broader impact of modern wagering products, including emerging forms of event-based markets. While the proposal is not aimed specifically at prediction markets, it reflects increasing interest from policymakers as the sector continues to expand.
Read Also: New Mexico Challenges Kalshi Over Sports Event Contracts
Advertising Becomes the Latest Flashpoint
For now, Google's policy change applies specifically to Ohio, but the decision underscores how prediction market operators are facing challenges beyond the courtroom.
The industry's largest companies continue to fight regulatory battles across multiple states while simultaneously trying to grow their user bases. As legal disputes continue and more jurisdictions examine the sector, advertising policies may become another area where prediction market operators encounter resistance alongside ongoing regulatory and legislative challenges.
Stay tuned to UMG Gaming for more updates on prediction markets, legal developments, and the evolving U.S. regulatory landscape.
About the author
CJ
Christian Joseph āCJā Zambale is a journalist and content specialist who covers the iGaming and esports industries.