Can You Use Underdog in Missouri? Legal Status Update for 2025

Legal sports betting will shortly go live in the Show-Me State, but which sportsbooks are opening their doors? Is Underdog legal in Missouri? The answer’s yes and, in this guide, we’ll take you through all of the important details.

The Underdog sportsbook will officially go live on December 1st, and this is the first date players will be able to make sports bets. However, as of 17th November, you can pre-register and fund an Underdog account. While no definite new player bonus has been announced, we’ve had indications that a sign up bonus will be on the cards.

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Is Underdog available in Missouri?

At the time of writing, it’s not possible to place bets at Underdog in Missouri. However, players can pre-register for an account and make a deposit, ready for when sports betting officially goes live.

In order to offer legal sports betting in the Show-Me State, Underdog has partnered with two Missouri-based sports teams — the Kansas City Royals and the St. Louis Blues.

Is sports betting legal in Missouri?

Sports betting in Missouri was legalized with the passage of Amendment 2 in November 2024. The new legislation in place allows for a maximum of 14 online sportsbooks and 19 retail brands.

When will Underdog be legal in Missouri?

Underdog is one of the dozen or so sportsbooks that have, so far, been granted licenses by the Missouri Gaming Commission to offer sports betting. A temporary license was granted to Underdog on October 22nd, along with other providers, to allow them to prepare for launch.

Is there an Underdog Missouri bonus for new players?

At the moment, Underdog hasn’t released firm details on a new player deal. However, we can assume that it will follow the same pattern as promotions in other states where Underdog has offered sports betting. Currency, Underdog has only offered legal sports betting, temporarily, in North Carolina, although it offers fantasy picks in many regions. See our complete guide to ‘what states allow Underdog?’ for the full rundown.

If the Missouri launch does follow this pattern, new Underdog customers may be able to claim a 100% deposit match up to $100. This provides $100 in fantasy bonus entries, which you can use to make picks across sports markets. Football and hockey are especially popular in Missouri, and there are several key games coming up in December that you’ll be able to bet on.

Who can join Underdog Missouri?

To be able to pre-register at Underdog, you must be over the age of 21 and physically present in the State.

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What other sportsbooks are launching in Missouri?

We’ve got full guides on the other sportsbooks joining the Show-Me State, including a look at whether Fanatics is legal in Missouri. Check out our pages for more details and promotions.

How can you use Underdog in Missouri? Pre-register for your bonus now

Once you’re clear you meet the eligibility requirements to join Underdog Missouri, you can pre-register from November 17th, by following these steps:

• Click on our links to go to the Underdog site.
• Download the iOS or Android app or stay on the desktop site.
• Hit the ‘Sign Up’ tab and fill in the registration form with your personal details, including name, date of birth, Social Security Number, address and email.
• Agree to the terms and conditions.
• Verify your account by uploading a copy of your ID and any other requested details.
• Once your account is verified, you can make an initial deposit.

Important terms and conditions

It’s important to be aware that the Underdog Missouri bonus comes with specific terms and conditions:

• Your initial deposit will have to meet a minimum limit, typically $10.
• Underdog uses geolocation software technology to confirm your location. VPNs can interfere with this, so it’s best to turn them off.
• You may have to use a promo code to activate this bonus, but that will be clearly highlighted on the new player page at Underdog.
• Underdog new player bonuses usually have a 1x playthrough requirement.
• You’ll have to meet the wagering requirements within a set time limit, usually 14 days. After this point, any winnings will disappear from your account.

Conclusion - Join Underdog now for the December 1st launch!

Underdog is legal in Missouri and will go live on December 1st for sports bets. Although we don’t know the specifics of the welcome bonus, we do know that Underdog is a great sportsbook with lots of plus points. We also know that Underdog has partnered with two of the best-loved sports teams in the State, so we can expect special NHL and MLB promotions in the future. This could include ‘bet and get’ deals as well as safety net bets.

Find out more about Underdog Missouri by clicking on the links in our banners to go straight to the Underdog site. We’ll keep you posted as the December 1st deadline draws near and we hear more about new player offers.

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