Underdog Promo Code ALARM: Register in November 2025 and Claim Your $100 Sign-Up Bonus

When it comes to daily fantasy sports, one of the most popular and respected sites that also offers a wide variety of contests is Underdog Fantasy. 

We’ve got a full Underdog Fantasy breakdown for you below, but you can also get started now with a $100 guaranteed sign-up bonus, plus a special discounted player that all but guarantees your first pick will be a winner. Sign up now and claim it instantly with our exclusive Underdog Fantasy promo code ALARM.

Underdog Fantasy Promo Code ALARM Scores $100 Sign-Up Boost

Underdog Fantasy provides such a great platform that it shouldn't be a surprise that their sign-up bonus is one of the best in the DFS industry. It's a two-parter featuring up to $100 in bonus cash, plus daily Gimme Picks!

The first part of the Underdog new-user promo: all new customers can snag a guaranteed welcome boost courtesy of a play-and-get bonus. All that's needed on your end is to sign up using Underdog Fantasy promo code ALARM, then make a first-time deposit of at least $5. That way, you can submit your first fantasy entry for at least that amount.

After you do so, just sit back and watch Underdog immediately add $100 worth of bonus cash to your account! You'll instantly have a 20x boost to your account, which only makes Gimme Picks even more valuable. We'll share more about features coming up, but these Gimme Picks have projections of 0.0, or no projection at all!

Both the ‘play $5, get $100’ boost as well as daily Gimme Picks are part of the sign-up promotion that your new account will automatically be enrolled in when you sign up now and enter Underdog promo code ALARM when registering. It's THE best promo code for Underdog Fantasy.

How To Sign Up With Underdog Promo Code ALARM

You'll need to use Underdog Fantasy promo code ALARM, but don't let that slow you down. Here's how to grab your Underdog sign-up bonus in just a few steps:

1. Use this link and create a new Underdog account
2. When asked, enter Underdog promo code ALARM
3. Submit your first entry for at least $5
4. Receive $100 in bonus cash, even if it doesn't win!

Having DAILY Gimme Picks will give you a great chance to win even more on top of that - and all on your first visit!

Underdog Sign-Up Bonus Overview

What Is Underdog Fantasy?

Underdog Fantasy is a premier daily fantasy sports (DFS) platform that has become best known for its user-friendly mobile app and massive Best Ball Fantasy Football Tournaments.

The company was founded in March of 2020 and quickly joined DraftKings and FanDuel as DFS leaders nationwide. They’ve even received support from huge names in the sports industry like Dallas Mavericks owner Mark Cuban and NBA superstar Kevin Durant.

Underdog Fantasy Contests & Game Types

While Underdog may be most famously known for its best ball contests, they offer far more game types just that one, single, season-long variety. 

Underdog Fantasy's pick ‘em DFS has overtaken salary capped daily fantasy games in popularity. Here, fans can predict higher or lower for a player’s projection for a specific stat, such as points or passing yards. If you pick 2 or more correctly, you can win cash prizes. This pick ’em format is available for Underdog NFL, Underdog NBA, Underdog MLB and a growing number of leagues and sporting events worldwide.

Underdog also has a happy medium between the two contest formats with daily or nightly drafts. Members can take part in drafts to create teams that will be used just for one, single slate of games for a given day. These are popular among fans who want to do more than just make a single player prediction, but also don’t want to have a team to monitor throughout an entire season.

With so much variety, you're bound to find your new favorite fantasy game at Underdog. Try it now and kickstart your contests by creating your account with Underdog Fantasy promo code ALARM.

Underdog Fantasy App

Underdog Fantasy has an excellent mobile app. It's available for both iOS and Android devices and has a 4.8 rating in the Apple App Store.

The app has tabs that let you easily browse player pick ‘ems, daily drafts and a breaking news feed. You can manage your account, check recent results, monitor your live entries or enter more. Deposits are easy and withdrawals are fast.

No matter what you need to get done, the Underdog Fantasy app has you covered. 

Underdog Promos For Existing Users

Underdog promo code ALARM is for the best new-user sign-up bonus. It can't be redeemed if you already have an Underdog account.

That said, Underdog Fantasy is well-known for providing frequent promotions for new and existing members alike. These often come in the form of discounted pick 'em plays, such as Gimme Picks.

For example, on a Sunday during the NFL season, we may see a Patrick Mahomes square with his passing yards projection set at just 0.0 rush + pass yards rather than something north of 300!

Promos are just another way in which Underdog Fantasy takes care of their customers - from the bonus you'll receive when you sign up and beyond.

Underdog Pros & Cons

The Underdog promo code bonus benefits are unmatched, but for a proper Underdog Fantasy review, a fair list of both pros and cons is an order. 

Pros

• Generous Underdog Fantasy promo code offer for new customers
• Sleek, easy-to-user interface
• Top-tier mobile experience via the app
• Daily boosts and promotions that focus on premier events
• News feed to stay up to date on stats and scores
• Huge variety of sports offered, from the NFL and NBA to lacrosse and esports

Cons

• In-game pick 'em stats aren't live for some sports 
• Not available in all states

Eligible States For Underdog Fantasy

We want everyone possible to take full advantage of the sign-up bonus unlocked by Underdog Fantasy promo code ALARM, and thankfully, that is the majority of the country. In fact, Underdog is legal in every state other than the ones listed here:

• CT, DE, HI, ID, IA, LA, MI, MT and NV

That means that there are 41 states in which sports fans can enjoy all the benefits we’ve taken you through in this Underdog Fantasy review. Because one way or another, you're going to need to try Underdog to see for yourself.

Try it now and score your instant & guaranteed $100 sign-up boost by using bonus code ALARM.

Underdog Fantasy FAQs

What payment methods does Underdog offer?

Underdog offers PayPal, credit/debit card and online banking as methods of payment for deposits and withdrawals.

What is the Underdog Fantasy promo code?

The Underdog Fantasy promo code ALARM unlocks the $100 bonus cash offer for all new customers AND daily Gimme Picks as a two-part sign-up bonus.

Does Underdog have a referral program?

Yes! Underdog members can invite their friends to get in on the action, and both parties can benefit. After referring a friend, they only need to join Underdog and place an entry of $10+ for both you and your friend to receive a $10 bonus. 

How can I contact Underdog Fantasy?

There are several ways to contact Underdog Fantasy customer service, including live chat, email (support@underdogfantasy.com) and phone (917-267-2182) 

Score Your Underdog Sign-Up Bonus Now

What's left to say? Underdog should be in every fantasy players rotation. If you're on the fence, consider this a firm shove to give it a shot.

The current Underdog Fantasy sign-up bonus makes it all the more simple. Claim $100 in guaranteed bonus cash with just $5 and then play a Gimme Pick in your first pick 'em entry. Your first experience will be full of fantasy freebies from start to finish.

Click here to get started by signing up with Underdog Fantasy promo code ALARM.