BetMGM Colorado: Legit? Cripple Creek Casino Backs It

BetMGM Colorado: Legal Since 2020, Backed by Cripple Creek

BetMGM Colorado has operated as a licensed online sportsbook since May 1, 2020, the same launch day FanDuel and most of the rest of the first wave went live under Proposition DD. What makes BetMGM's Colorado entry distinct is the casino standing behind it: a market-access deal with a small Cripple Creek property, not the Black Hawk partners most rival books use, plus a sponsorship with the Denver Broncos that arrived two months later.

Legal status in Colorado

Colorado voters authorized sports wagering through Proposition DD in November 2019, by a narrow roughly 51-to-49 margin, and the Colorado Limited Gaming Control Commission licenses it as an extension of the state's existing limited-stakes casino industry — there is no standalone online-only license. BetMGM entered on launch day, May 1, 2020, through ROAR Digital (the MGM Resorts/GVC joint venture that predates the BetMGM corporate name) signing an exclusive primary-skin agreement with Midnight Rose Hotel and Casino in Cripple Creek, a property owned by Triple Crown Casinos. That is a different mountain town than the Black Hawk casinos several competing books partner with, but the legal mechanism is identical: a commercial online brand riding a small retail casino's license. HB25-1311, signed in May 2025, is separately phasing out the tax deduction operators take on promotional free bets — down to 1% of handle for the first half of 2026 and gone entirely as of July 1, 2026 — which raises BetMGM's Colorado tax bill without changing what a bettor is offered.

State gambling authority: Colorado Division of Gaming, operating under the Colorado Limited Gaming Control Commission within the Department of Revenue.

BetMGM Colorado has run as a licensed online sportsbook since May 1, 2020 — opening day for the state's entire sports betting market. Six years later the sportsbook is unremarkable in the sense that matters most: it is licensed, audited, and geolocation-checked like every other book here. What is less obvious is which casino makes that possible, and it is not the one most rival books lean on.

Is BetMGM Legal in Colorado?

Yes, under Proposition DD, the November 2019 ballot measure that legalized sports wagering by a margin of roughly 51% to 49% — one of the closest votes of the entire state-by-state legalization wave. The measure didn't create a standalone online license; it attached mobile and retail sports betting to Colorado's existing limited-stakes casino framework, confined to three old mining towns: Black Hawk, Central City, and Cripple Creek. A commercial online brand needs a licensed casino partner in one of those towns to operate at all.

BetMGM's Colorado license: market access through Midnight Rose Hotel and Casino in Cripple Creek, a Triple Crown Casinos property, signed by ROAR Digital (BetMGM's predecessor company) on launch day, May 1, 2020. Regulator: Colorado Division of Gaming, under the Limited Gaming Control Commission. Retail counter: none that BetMGM operates directly.

A Different Mountain Town Than Most Rivals

Most of Colorado's online-only sportsbooks route their license through a Black Hawk casino partner. BetMGM didn't — its exclusive primary-skin agreement runs through Cripple Creek instead, a smaller gaming town about two hours from Denver. The practical effect for a bettor is zero; the app works the same regardless of which mountain town backs it. But it is a genuine structural difference worth knowing if you're comparing why different sportsbooks name different casino partners in their license filings.

Is BetMGM Legit in Colorado?

Yes. BetMGM is the 50/50 joint venture between MGM Resorts International, a Nasdaq-listed casino operator, and Entain, the London-listed group behind Ladbrokes and Coral. Colorado also got a visible piece of BetMGM's marketing push early: in July 2020, two months after launch, BetMGM signed a multi-year deal making it the Denver Broncos' official sports betting partner. That sponsorship doesn't substitute for the Cripple Creek license — it sits on top of it — but it is a real, checkable relationship, not a marketing claim with nothing behind it.

How Safe Is BetMGM in Colorado?

The Colorado Division of Gaming, operating under the Limited Gaming Control Commission, licenses and audits BetMGM the same way it licenses every retail casino floor in Black Hawk, Central City, and Cripple Creek. Geolocation enforces the state line before any wager clears. That is a real regulatory backstop — distinct from an offshore book with no state license at all — though it says nothing about whether betting is a good financial decision. The house edge doesn't move because a casino in Cripple Creek vouches for the license.

The Free-Bet Tax Fight Doesn't Touch the Player Side

Colorado taxes sports betting revenue at 10%, with proceeds earmarked for the Colorado Water Plan — the detail that helped Prop DD squeak through in 2019. Operators including BetMGM used to shrink their taxable number by deducting the value of promotional free bets. HB25 -1311, signed in May 2025, is phasing that out: the deduction cap fell to 1% of handle for the first half of 2026 and disappeared entirely on July 1, 2026. None of that changes what a Colorado bettor is offered at sign-up — BetMGM's bonus-bet structure is set nationally — it just means BetMGM keeps less of its own promotional spend as a tax write-off here going forward.

No BetMGM Casino Here

Proposition DD only ever authorized sports wagering — Colorado has no legal online casino market at all, for any operator. BetMGM Casino exists nationally in just four states: Michigan, New Jersey, Pennsylvania, and West Virginia. That gap in Colorado isn't a BetMGM-specific shortfall; it is a limit baked into the state law itself.

Who It Fits

Adults 21+ in Colorado get a sportsbook with six years of track record, a named and licensed casino partner, and a visible local sponsorship tie to the Denver Broncos — real signals, not marketing fluff. The tax fight over free-bet deductions is a state-revenue story worth knowing, not a reason to doubt the book. Treat every wager as entertainment spending, not income. Problem with gambling? Call or text 1-800-GAMBLER.

BetMGM Colorado — Frequently Asked Questions

Is BetMGM legal in Colorado?

Yes. BetMGM has held a Colorado sports betting license since May 1, 2020, licensed through the Colorado Limited Gaming Control Commission under the authority voters granted with Proposition DD in November 2019. It operates via a market-access agreement rather than a license of its own storefront, the same structure every online-only Colorado sportsbook uses.

Is BetMGM safe to use in Colorado?

Yes. The Colorado Division of Gaming oversees BetMGM the same way it oversees every retail casino floor in Black Hawk, Central City, and Cripple Creek, and geolocation confirms a bettor is physically inside Colorado before a wager is accepted. BetMGM's Colorado operation is tied to a named, licensed casino partner, not an anonymous offshore app.

Why does BetMGM operate through a Cripple Creek casino instead of its own license?

Proposition DD never created a standalone online sportsbook license — it bolted mobile wagering onto Colorado's existing limited-stakes casino framework, confined to Black Hawk, Central City, and Cripple Creek. BetMGM's predecessor company, ROAR Digital, struck an exclusive primary-skin deal with Midnight Rose Hotel and Casino in Cripple Creek (a Triple Crown Casinos property) to get online rights statewide. Most competing books instead partner with Black Hawk casinos, so BetMGM's legal path runs through a different mountain town.

Is BetMGM legit?

Yes. It is the 50/50 joint venture between MGM Resorts International and Entain, running the same licensed, regulator-audited infrastructure across 23 states plus D.C. In Colorado specifically, BetMGM signed on as the Denver Broncos' official sports betting partner in July 2020, a sponsorship deal layered on top of the Cripple Creek license rather than a substitute for it.

Does BetMGM have an online casino in Colorado?

No. Proposition DD authorized sports betting only, so Colorado has no legal online casino market for any brand. BetMGM Casino nationally runs in just four states — Michigan, New Jersey, Pennsylvania, West Virginia — and Colorado was never part of that footprint regardless of the sportsbook's track record here.

Is BetMGM's Colorado tax treatment changing in 2026?

The player-facing product is not changing, but the tax math behind it is. Under HB25-1311, signed May 2025, the deduction Colorado sportsbooks take on promotional free bets dropped to 1% of handle for the first half of 2026 and disappeared completely on July 1, 2026, raising BetMGM's effective state tax bill without altering the sign-up offer a Colorado bettor actually sees.