Our Underdog promo code ALARM guarantees all new users $50 in bonus cash with just a $5 entry, win or lose.

Believe it or not, Selection Sunday is officially upon us, which means that the greatness of March Madness 2026 is also just about upon us! Filling out brackets is a tradition like no other, but by joining Underdog today, you can add to those in a big way.

That’s thanks to not only their always valuable fantasy contests, but also courtesy of today’s Underdog promo code bonus. Right now, all new members are able to score a GUARANTEED 10x boost to their account, which is just one way to help also take advantage of their DAILY Gimme Picks!

Don’t worry - we’ve got you covered with all the info below. However, you can also just 🎯 sign up here 🎯 with our exclusive Underdog promo code ALARM to get started now!

Underdog Promo CodeALARM
Underdog Welcome OfferPlay $5, Get $50 in Bonuses 🔥
No-Deposit BonusGimme Pick Sign-Up Bonus
Underdog Bonus Last VerifiedDate of article publication (March 15th, 2026)
Claim OfferClick Here to Join Underdog


 

💲 Our Underdog Promo Code ALARM & Just $5 Guarantees 10x Welcome Bonus!

While today may be Selection Sunday, putting plenty of focus on the NCAA Tournament, we’ve got plenty to enjoy watching the bracket populate. So, we’ll first point out that you can capitalize on your Underdog promo code bonus as soon as today since you can join contests focused on ANY sporting event.

All it takes is your first submission into any contest. Submit that initial entry for at least $5, and then, just kick back and relax! You can do so, as you’ll receive $50 worth of bonus cash even if it doesn’t win! As you can see, that’s a 10x boost to your account with no questions asked by activating our Underdog promo code ALARM through this link 🔗!
 

 

 

🔓 Does Underdog Require A Promo Code? How To Use Our Underdog Promo Code ALARM

You’ll be able to use that GUARANTEED boost to your account on March Madness games by having it as soon as today when you use these steps to get started:

  1. Join here 👈🏼 for a new Underdog account
  2. Enter our Underdog promo code ALARM
  3. Submit your first contest entry for $5 or more

And just like that, $50 worth of bonus cash will be added to your account, not to mention any winnings if that entry hits!

🏅 What Are Underdog’s Best Features?

We already mentioned our favorite Underdog feature - DAILY Gimme Picks. These are player cards with a 0.0 stat projection, so they’re even better than FREE picks! Beyond those, enjoy even more of Underdog’s best features:

  • Lucrative contest types (home of Best Ball Mania)
  • Quick and easy payouts
  • Wide variety of sports to target
  • Live news feed to stay informed
  • Sleek mobile app for easy navigation

Could we even see Underdog getting into the prediction market game? Regardless, make the most of each and every feature by creating a new account today ☀️ with our Underdog promo code ALARM!

 

 

 

❓ Where Is Underdog Legal?

Actually, let’s expand on creating an account by discussing who can even do so - it’s almost the entire nation! That’s right - even many of the states without legal sports betting get to claim today’s Underdog promo code bonus, which is perhaps the best news that we’ve shared yet. You can see who is eligible below with the list of where Underdog is legal:

  • AL, AK, AZ, AR, CA, CO, FL, GA, IL, IN, KS, KY, MD, MA, MI, MN, MS, MO, NE, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WV, WI and WY

🎯 Target Games Before March Madness Tips Off After Using Our Underdog Promo Code ALARM

We said that you could have your bonus cash before March Madness even tips off, so here are several sporting events to target:

Whatever it is you love most or just want to test out since your 10x boost is GUARANTEED, just get things underway by ✍🏼 becoming a new member ✍🏼 with our exclusive Underdog promo code ALARM!