Colorado has one of the most mature mobile sports-betting markets in the western US — voters approved sports betting via [Proposition DD](https://leg.colorado.gov/sites/default/files/images/olls/proposition_dd.pdf) in November 2019, the Division of Gaming launched online wagering in May 2020, and the state now hosts more than two dozen licensed sportsbook operators including DraftKings, FanDuel, BetMGM, Caesars, ESPN BET and Fanatics Sportsbook. Annual handle has crossed $6B. Despite that scale, Colorado has not joined the multi-state coalition led by Massachusetts AG Andrea Joy Campbell that sued Kalshi in late 2025. Colorado AG Phil Weiser and the Division of Gaming have remained publicly silent on CFTC-regulated prediction markets through April 2026.
For Colorado residents, the practical effect is that nearly every major CFTC-regulated prediction market platform is available statewide. The only exceptions are DraftKings Predictions, FanDuel Predicts and Fanatics Markets — all three voluntarily geofence Colorado because their parent companies hold CO Division of Gaming sportsbook licenses they need to protect.
Colorado Prediction Market Timeline 2025–2026
- November 2019 — Colorado voters approve Proposition DD, legalizing mobile sports betting. The Division of Gaming becomes the regulator.
- May 2020 — Online sports betting goes live. Initial tax rate set at 10% of operator gross gaming revenue.
- March 2025 — Kalshi launches sports event contracts. CO residents have immediate access. No regulator response.
- September 2025 — Colorado Gaming Association (industry trade group representing licensed sportsbooks) sends a letter to AG Phil Weiser asking him to "examine whether CFTC sports event contracts conflict with Colorado's regulated sports-betting framework." No public response from the AG.
- November 2025 — Massachusetts AG Campbell launches the multi-state coalition suing Kalshi. Colorado declines to join. Sources cite the AG's preference to wait for the Third Circuit's ruling in *Kalshi v. New Jersey*.
- March 2026 — *Blue Lake Rancheria v. Kalshi* in the Eastern District of California is decided in Kalshi's favor. The Third Circuit affirms NJ's loss. Colorado remains on the sidelines.
- April 2026 — All major CFTC-regulated platforms continue to operate in CO. DraftKings Predictions, FanDuel Predicts and Fanatics Markets continue voluntary geofencing.
Why Colorado Has Stayed Out of the Fight
Three structural reasons:
- AG Phil Weiser's analytical posture. Weiser is a former technology law professor (he taught at CU Boulder Law School and ran the Silicon Flatirons Center) and has consistently treated novel internet-era regulatory questions as ones requiring federal-level resolution. His office has signaled it will not bring a state enforcement action while the Third Circuit and CFTC jurisdictional questions remain live.
- Mature, profitable licensed market. Colorado's licensed sportsbooks are profitable and their market position has not been materially eroded by CFTC competition. Without measurable revenue loss, the political pressure to act is lower than in Massachusetts or Connecticut.
- Tribal gaming dynamic is small. Colorado has two federally recognized tribes — the Southern Ute and Ute Mountain Ute — both operating gaming compacts in the southwestern part of the state. Neither tribe has joined any prediction-market litigation. By contrast, California's tribal gaming coalition is the largest in the country and drove the *Blue Lake Rancheria* litigation.
What Colorado Residents Can Trade Right Now
CFTC-regulated platforms operate the standard split-product approach in CO:
- Politics, macro, crypto, climate, entertainment, weather: Fully available on Kalshi, Robinhood, Polymarket US, OG.com, Sleeper, Novig, Chalkboard, Rebet.
- Sports event contracts: Available on Kalshi, Robinhood, Polymarket, OG.com, Novig and Chalkboard. Geofenced by DraftKings Predictions, FanDuel Predicts, Fanatics Markets.
Colorado-specific market depth is strongest on Denver Broncos (NFL), Denver Nuggets (NBA), Colorado Avalanche (NHL), Colorado Rockies (MLB) and CU Buffaloes / CSU Rams (NCAA) contracts. Political market depth is strong around the Colorado gubernatorial race and federal Senate races.
Best Prediction Market Platforms for CO Residents
Kalshi — Full catalog including all sports event contracts. CFTC Designated Contract Market.
Robinhood — Available statewide. Routes orders through Kalshi.
Polymarket US — Strong political and macro depth. USDC-funded.
OG.com — Available with full sports catalog. Lower per-contract fees than Kalshi.
Novig — Peer-to-peer no-vig sports markets. Available in CO.
Chalkboard — Sports prediction markets. Available in CO.
Sleeper — Fantasy-adjacent prediction props. Available in CO.
Rebet — Available in CO.
DraftKings Predictions / FanDuel Predicts / Fanatics Markets — Not available in CO (voluntary geofencing tied to state sportsbook licenses).
Eligibility Checklist for CO Residents
- 18+ on CFTC-regulated platforms (CO state sportsbooks: 21+).
- Government ID + SSN for KYC verification.
- US bank account, debit card, or USDC wallet.
Tax Treatment for CO Residents
- Federal: IRC Section 1256 generally applies (60% long-term / 40% short-term capital gains).
- Colorado state: Flat 4.4% state income tax applies to taxable gains.
- Not gambling income: CO Department of Revenue has not issued prediction-market-specific guidance, but federal CFTC classification controls.
Local Sports Angle: Broncos, Nuggets, Avalanche, Rockies, Buffaloes
Colorado fans can currently trade event contracts on the Denver Broncos, Nuggets, Avalanche, Rockies and CU Buffaloes on Kalshi, Robinhood, Polymarket and OG.com. This includes Super Bowl futures, NBA Finals odds, Stanley Cup futures, World Series odds, and college football championship markets. All available with no in-state geofence as of April 21, 2026.
What Happens Next
- AG Weiser posture: Likely unchanged through 2026 absent a sharp federal court reversal.
- CO Division of Gaming action: A small possibility — the agency could issue formal guidance, but enforcement requires AG backing.
- Tenth Circuit cases: No prediction-market case is currently pending in the Tenth Circuit (which covers CO). If one is filed elsewhere in the circuit, Colorado's posture could shift.
Sources
- The Hill: [Lawmakers ramp up fight against sports betting on prediction markets](https://thehill.com/business/5798917-sports-betting-prediction-markets-cftc/)
- Yahoo Finance: [Online Sports Betting Bills Stymied By Prediction Markets](https://www.yahoo.com/news/articles/online-sports-betting-bills-stymied-140537662.html)
- Holland & Knight: [Federal Appeals Court: CFTC Jurisdiction Over Sports Event Contracts](https://www.hklaw.com/en/insights/publications/2026/04/federal-appeals-court-cftc-jurisdiction-over-sports-event-contracts)
Platform Availability in Colorado
Related on PredictionRanks
Related Markets
Frequently Asked Questions
§ References & Sources
- Commodity Futures Trading Commission (CFTC)— U.S. federal regulator
- CFTC Designated Contract Markets list— CFTC
- 26 U.S. Code § 1256 — Section 1256 contracts marked to market— Cornell Law / U.S. Code
- IRS Form 6781 — Gains and Losses From Section 1256 Contracts— Internal Revenue Service
- National Council on Problem Gambling — 1-800-GAMBLER— NCPG