When you register for a new DFS account with the Underdog promo code TOPACTION, claim a $1K deposit match bonus. Simply sign up and initiate your first deposit at Underdog Fantasy. Get it matched at a 50% rate for up to $1K in bonus cash. To claim the maximum bonus with the Underdog promo code TOPACTION, you must make an initial deposit of $2K or more. The bonus cash you receive can be utilized to place entries or enter draft contests for any sport, including today's MLB slate.
In Alabama and Minnesota, use the Underdog promo code TOPACTION to claim an alternative sign-up offer. Play $5+ to get $50 in bonus cash. When you register in Georgia and Utah, you receive both the $50 play-through bonus and the $1K deposit match offer.
Underdog Promo Code TOPACTION Details: Tuesday, August 5, 2025
Sign up with the Underdog promo code TOPACTION now to get a $1K deposit match bonus in most states. Check out the chart below for more information about where each offer is available.
| Underdog Fantasy Promo | States Available | Underdog Promo Code & Sign-Up Link |
|---|---|---|
| Get Up to $1K Bonus Cash When You Make Your First Deposit | AK, AR, FL, IL, IN, KS, ME, MS, NE, NM, NY, NC, ND, OK, OR, RI, SC, SD, TX, VT, VA, WI, WY, DC | TOPACTION |
| Deposit Match Up to $1000 + Play $5, Get $50 | GA, UT | TOPACTION |
| Play $5, Get $50 | AL, MN | TOPACTION |
How to Use the Underdog Promo Code TOPACTION
Let's break down how the deposit match works when you register today with the Underdog promo code TOPACTION. With this promo, make your first deposit and get it matched at a 50% rate for up to $1K in bonus cash.
Suppose I make my initial deposit for $1.5K. I receive $750 in bonus cash that is placed into a separate bonus balance from my deposited cash balance. Use your bonus to place entries at Underdog Fantasy or enter into draft contests.
Underdog Fantasy Promo Code TOPACTION: Place MLB Entries Now
Now, let's look at how entries work at Underdog Fantasy so you can use your bonus cash after registering with the Underdog Fantasy promo code TOPACTION. There are two different entry formats to choose from: Standard and Flex. A Standard entry requires you to win each of your picks to receive a payout, while a Flex provides a smaller payout for going perfect and approximately a 1x payout if you lose just one pick.
Here is an example of an entry I created for MLB today:
- Anthony Volpe HIGHER than 0.5 Home Runs
- Nathan Eovaldi HIGHER than 6.5 Strikeouts
- Mike Trout LOWER than 1.5 Hits + Runs + RBI
Say I place this entry as a Standard for $10, which has a 37.5x payout multiplier. If all picks win, I receive a $375 total payout that includes $365 in profit and my $10 entry back. Remember to use the Underdog promo code TOPACTION to secure your offer.
How to Claim Your Underdog Promo
Follow the steps outlined below to claim your welcome offer with the Underdog promo code TOPACTION:
- Step 1: Click this link or any sign-up module on this page to download the Underdog app.
- Step 2: Create a username and password.
- Step 3: Fill in your email, date of birth, and all other required personal information to create a new Underdog account.
- Step 4: Enter the Underdog promo code TOPACTION to get up to $1,000 in bonus cash from the 50% deposit match welcome offer.
- Step 5: Agree to the Underdog Terms of Use and Privacy Policy. Confirm you are at least 18 years old (19+ in Alabama/Nebraska, 21+ in Massachusetts/Arizona).
- Step 6: Click "Sign Up."
- Step 7: Make your first deposit of $10+.
- Step 8: Create your first entry at Underdog.
Must be 18+ (19+ or 21+ depending on state of residence) and within applicable state. Full T&Cs apply.
Must be 18+ and present in Georgia or Utah. Terms apply. See underdogfantasy.com/web/deposit-match-terms and https://assets.underdogfantasy.com/web/play_get.html for details. Concerned with your play? Call 1-800-GAMBLER or visit www.ncpgambling.org.
Must be 18+ (19+ in AL) and present in Minnesota or Alabama. Terms apply. See https://assets.underdogfantasy.com/web/play_get.html for details. Concerned with your play? Call 1-800-GAMBLER or visit www.ncpgambling.org.