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Colorado Moves to Ban Prop Bets and Online Lottery

Legislation in Colorado would ban prop bets, set deposit limits, and curb advertising, while another bill would halt an online lottery
Bills in Colorado would place limits on sports betting and outlaw an online lottery.
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Ian St. Clair Avatar
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State of Play’s TL;DR

  • Colorado lawmakers have advanced measures that would ban certain player prop bets and curtail the state’s online lottery.
  • These proposed changes could change what markets and deposit options are available to bettors, and signal renewed focus on advertising limits and player protections.

Colorado’s Legislature has moved to tighten gambling rules after recent committee and Senate action.

Two bills under debate target fast-growing segments of the market: Senate Bill 131 (SB 131) would impose limits on sports betting advertising, introduce deposit limits, and ban player prop bets, citing concerns about harassment of athletes and harms to vulnerable bettors.

Senator Matt Ball warned that gambling addiction is unique because “those affected believe that doing it more is the cure,” using that line to justify limits. The measure drew pushback from major operators, including DraftKings, which argued that excessive regulation could push players to offshore sites.

Meanwhile, Senate Bill 117 (SB 117) seeks to halt Colorado’s online lottery over worries that digital lottery games resemble gambling and allow credit card funding. Sponsor Sen. Jeff Bridges likened the proliferation to being “akin to fentanyl,” noting heavier participation among lower-income players.

Bill could actually push more players to offshore platforms

If enacted, these bills would have immediate, practical effects for players and operators.

For bettors, it would mean:

  • Fewer market options: A ban on player prop bets would remove many popular markets (player stats and micro-events), changing daily fantasy and live-betting strategies.
  • Stricter spending controls: Deposit limits could help reduce loss-chasing but may frustrate recreational players used to larger bankroll flexibility.
  • Less advertising: TV ad limits could reduce promotional visibility and new-user acquisition.

For operators, passage would mean:

  • Revenue pressure and product reconfiguration: Popular prop markets and online lottery channels generate material handle and margin; removing them lowers revenue and may require product pivots.
  • Compliance and migration risks: Tighter rules increase compliance costs and create incentives for some players to seek offshore or unregulated alternatives, a concern operators raised during committee hearings.

Overall, the measures reflect a national trend toward balancing growth with player protection, but they could also fragment the regulated market and shift customer behavior.

Both measures have advanced through Senate committee stages and face additional legislative steps before becoming law, including potential floor votes, concurrence by the other chamber, and the governor’s signature.

Based on reporting by Fiona Simmons for Gambling News.

About the Author
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Ian St. Clair

Content Lead

Ian St. Clair is a lover of words, vocal or written. Naturally, that makes Ian a great communicator and leader. Ian is curious and driven, always looking to improve, and always welcomes a challenge. Ian is authentic, possesses high-level emotional intelligence, and knows just when to crack a joke. A University of Northern Colorado graduate, Ian is now an expert in the US online gambling field, where he's been for over 5 years. Ian also has over a decade of journalism experience covering college and professional athletics, as well as the symphony and theater. Ian's a lover of history, news, and bacon. Oh, and tacos.

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