Senate bill targets sports prediction markets

TLDR

US senators have introduced a bill that would ban sports contracts on federally regulated prediction markets, directly targeting platforms like Kalshi and Polymarket.

1. The bill would stop CFTC-regulated venues from listing sports prediction contracts and push oversight toward state gambling regulators.
2. Sports is a large share of volume on key venues, so a ban could sharply shrink their business and affect on-chain prediction activity.
3. Crypto users should watch how Congress scopes the ban and whether it expands to other event types such as politics, macro or crypto prices.

Deep Dive

1. What The Bill Actually Does

A bipartisan group of US senators led by Adam Schiff and John Curtis has proposed legislation that would bar federally regulated prediction markets from offering contracts tied to sports events and shift control away from the Commodity Futures Trading Commission (CFTC) toward state gambling regulators. One report describes it as a move to shut a "backdoor" that lets event contracts compete with state-licensed sportsbooks like DraftKings and FanDuel under derivatives rules instead of gambling laws. The bill explicitly targets CFTC-supervised platforms such as Kalshi and Polymarket that currently treat many event markets as commodity derivatives, not wagers. A related proposal dubbed the "Prediction Markets are Gambling Act" would similarly classify sports prediction contracts as gambling products and prohibit them at the federal level.

2. Impact On Kalshi, Polymarket And Crypto

Coverage suggests sports accounts for roughly 70 to 85 percent of volume on Kalshi and about 35 to 40 percent on Polymarket, so removing sports contracts would be a major revenue hit for both platforms. Polymarket runs on the Polygon blockchain and is often integrated into broader crypto workflows, while Kalshi is a regulated but crypto-adjacent venue that influences how policymakers view on-chain markets. Other developments, such as Gate integrating a built-in prediction market feature and BitGo offering institutional OTC access to event contracts using crypto collateral, show that prediction markets are becoming more intertwined with digital assets. A sports-only ban would not automatically remove political or financial markets, including those on crypto prices, but it raises the risk that Congress could later expand restrictions to other categories.

3. What To Watch Next

First, the legislative path: committee hearings, amendments, and whether this bill is bundled with other prediction market measures like efforts to ban markets on war, terrorism or assassinations. Second, the regulatory reaction: the CFTC has just launched an Innovation Task Force that explicitly includes prediction markets and crypto, and it may fight to keep federal jurisdiction even if Congress narrows what can be listed. Third, platform responses: Kalshi and Polymarket have already tightened insider-trading and integrity rules and may further restrict sensitive markets to show they can self-police.

Conclusion

The Senate bill is part of a broader struggle over whether prediction markets are financial infrastructure or just another form of sports betting. If sports contracts are pushed firmly into the gambling bucket, regulated and on-chain platforms that depend heavily on sports volume may need to rebalance toward other event types or limit US access. For crypto traders and builders, the opportunity lies in categories that regulators still tolerate, while the main risk is that this sports-focused push becomes a template for a wider clampdown on event markets more generally.