Is Underdog available in Missouri? December 2025 Legal Updates

Missouri sports betting continues to be the talk of the town as anticipation for the market launch grows. This article covers what we know about Is Underdog legal in Missouri? and its potential launch in the Show Me state.

Underdog is originally a DFS betting operator known for its exciting pick-em contests, sleek mobile app, and user-friendly gameplay. The people behind it have launched a sportsbook site too and are looking to enjoy similar success with the betting product. Naturally, this is only possible in approved states. So let's look at the legal status of Underdog in Missouri.

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Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. Offer not valid in MD, MI,NY, OH, and PA. Concerned with your play? Call 1-800-GAMBLER or visit www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369)

Is Underdog legal in Missouri?

Underdog was one of the first sportsbooks to apply for a betting license from the Missouri Gaming Commission following the legalization of sports betting in the state. After partnering with the Kansas City Chiefs, it received one of the seven tethered licenses from the Commission and is therefore legal to play in the state.

For clarity, Underdog Fantasy is different from Underdog Sportsbook. The former has been legal and active in Missouri since 2016. The latter was launched just last year and is looking to break into the mainstream, as it currently operates only in North Carolina.

Since Underdog Fantasy is already popular in Missouri, it should be easy for customers to transition to the sportsbook, which provides a similar app interface and user experience. While Missouri betting is legal, the market isn't yet live. You can't start placing Underdog bets until the market is officially online.

When is Underdog available in Missouri? – The upcoming launch of Missouri sports betting

Missouri sports betting is set to go live on December 1, 2025, after being passed into law late last year through a statewide ballot measure. Pre-registration is available prior to the launch day, and on the D-day, you'll be able to start betting on the Kansas City Chiefs, St Louis Blues, and other homegrown teams

Underdog will not be the only betting site that Missouri bettors can rely on. DraftKings is legal in Missouri, as well as a couple of other reliable operators that have also received sports betting licenses from the Missouri Gaming Commission.

How to play at Underdog Missouri when it goes live

For now, you can't bet in Missouri, but you can still sign up with Underdog. The pre-registration period is ongoing from November 17 until December 1st. So you can head over to the site and register a new player account. Here's how:

1. Click through our bonus banners on this page to visit Underdog
2. Once there, create your account and verify your identity
3. Lock in the early welcome bonus offer
4. When the market launches on December 1, you can start placing bets instantly

Underdog is only available as a mobile app, so you must download and install the software on your iOS or Android device to sign up and bet.

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Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. Offer not valid in MD, MI,NY, OH, and PA. Concerned with your play? Call 1-800-GAMBLER or visit www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369)

Bonuses you can claim at Underdog Missouri

There are pre-launch bonuses available as well as full launch offers you can get your hands on on the first day of December. And it's really easy to get them. You simply need to follow our links to unlock them for your account. As a heads up, these are some of the bonus terms you might encounter:

• You must place a minimum deposit of $10 to activate your new player bonus
• 7-day validity period for bonus bets you receive
• You can only claim the bonus offer once

Other terms and conditions will apply, so make sure to go through the bonus document attached to the offers on the betting app.

The accepted age for Underdog Missouri sportsbook betting

Although Missouri sports betting laws allow 18-year-olds to bet, Underdog Sportsbook itself has a 21+ age limit. So to play here, you must be of legal drinking age. And you don't have to reside in the Show Me state to join; you only need to be located within state borders when you create your account and when you place bets.

Rounding off – You can use Underdog in Missouri by December 1, 2025

The question isn't when Underdog will be legal in Missouri. It already is. The question is, when will it go live? And that’s December 1, 2025. You can't use this sportsbook in the Show Me state until the market officially launches. When that day comes, you'll finally be able to bet on all the sports covered on the platform.

Before then, Underdog has a DFS offering. You can try it out if you want to get familiar with the operator before launch day. We also recommend clicking on the banners here to sign up early on the Underdog Sportsbook app and grab your pre-launch offer. That way, when the app is finally online, you can start betting with your bonuses immediately.

Play $5 Get $100 in Bonus Entries

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Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. Offer not valid in MD, MI,NY, OH, and PA. Concerned with your play? Call 1-800-GAMBLER or visit www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369)