The NFL season is fast approaching—and that means it’s time to get your fantasy football lineup locked in with Underdog. If you haven’t signed up yet, now’s your chance to take advantage of the Underdog Fantasy Football promo and join the action today.

With just days to go before the Hall of Fame Game kicks off the 2025 NFL season, Underdog Fantasy is offering all new users a generous welcome bonus—up to $1,000 in bonus cash—just for signing up with promo code ALARM.

Whether you’re eyeing Best Ball Mania or want to test your luck on daily player picks, this is the perfect way to boost your bankroll before Week 1 even begins.

 Keep reading to find out how to claim the bonus, or click here to sign up now with code ALARM!

 

 

 

Underdog Fantasy Football Promo: 50% Deposit Match Up To $1,000

Want to maximize your football season from day one? Start by claiming Underdog’s newest promotion. Simply make your first deposit (minimum $10, maximum $2,000) and Underdog will instantly match 50% of it in bonus cash—no strings attached.

That means if you deposit $100, you’ll receive $50 extra to play with. Deposit $2,000 and you’re walking away with a cool $1,000 bonus added to your account.

But don’t wait too long—this Underdog Fantasy Football promo code ALARM is especially hot right now with Best Ball Mania contests filling up fast. So click here to sign up now!

 

 

 

Why Join Underdog? Best Ball, Daily Picks & More

There’s a reason why millions of fantasy players have made Underdog their go-to destination for NFL action. From Best Ball Mania—arguably the most exciting format in fantasy football—to daily MLB and NFL player picks, there’s no shortage of ways to use your bonus cash.

In fact, when you sign up right now, you can use that bonus to place picks on discounted MLB lines, like 0.5 strikeouts or 0.5 hits. And once football season hits full stride, Underdog's platform makes it easy to build lineups, enter contests, and compete for serious prizes.

 

 

 

How To Claim The Underdog Fantasy Football Promo Code ALARM

Getting started takes less than five minutes. Here’s how to lock in your bonus and start building your bankroll:

  1. Sign up here for a new Underdog account
  2. Enter promo code ALARM during registration
  3. Make your first deposit ($10–$2,000)
  4. Get 50% of your deposit back in bonus cash (up to $1,000!)

Now you’re ready to take on Best Ball Mania, enter daily drafts, and more—all with some extra help from your bonus.

 

 

 

Where Can You Play Underdog Fantasy?

Underdog Fantasy is legal in most U.S. states, which makes it one of the most accessible fantasy platforms out there. You can enter contests and use your welcome bonus anywhere except:

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

If you’re outside those states, you’re good to go—just make sure to use promo code ALARM when you join!

 

 

 

Popular Fantasy Contests After Claiming Your Bonus

Once your bonus cash is loaded, there’s no shortage of contests to dive into. Some of the most popular formats include:

  • Best Ball Mania
  • The Little Scramble
  • The Dance
  • Daily Drafts
  • Weekly Winners
  • Pick’em Contests

No matter your style, Underdog has something for everyone—whether you’re grinding daily matchups or going big in season-long formats.

So don’t miss your shot. Join now using the Underdog Fantasy Football promo code ALARM and set yourself up with up to $1,000 in bonus cash. The NFL season is nearly here—get in on the action today!

 

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