When you register for a new DFS account today with the Underdog promo code TOPACTION, get a 50% match on your first deposit for up to $1K in bonus cash. This offer is only available to new users of the platform. Once you secure your bonus cash with the Underdog promo code TOPACTION, place entries containing players from any sport, including MLB games today, July 27.
Underdog Fantasy is one of the top DFS operators in the industry and represents an excellent alternative if online sports betting is not legal in your state yet. This is primarily due to Underdog Fantasy being legal in a majority of U.S. states. Use the Underdog promo code TOPACTION now to claim this top alternative to the best MLB betting promos.
In other states, there are two other sign-up bonuses available with the Underdog Fantasy promo code TOPACTION. In Alabama and Minnesota, claim a $50 play-through bonus when you place a $5+ initial entry. In Georgia and Utah, you receive the $50 play-through offer along with the $1K deposit match bonus.
Underdog Promo Code TOPACTION Details: Sunday, July 27, 2025
Sign up with the Underdog promo code TOPACTION now for up to 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 |
Underdog Promo Code TOPACTION, Explained
Sign up now with the Underdog promo code TOPACTION for a 50% deposit match of up to $1K in bonus cash. For example, suppose I make an initial deposit of $2K. This deposit is matched at a 50% rate, which provides the maximum bonus in this scenario of $1K. This $1K in bonus cash is placed into a separate balance from my deposited cash balance.
Place Your MLB Entry With Underdog Fantasy Promo Code TOPACTION
Let's discuss how entries work when you sign up with the Underdog promo code TOPACTION. At Underdog Fantasy, there are two different ways to place entries: Standard or Flex. A Standard entry requires all of your picks to win to receive a payout, while a Flex entry yields a smaller payout if you go perfect or lose just one pick.
Here is an example of an entry I created using MLB picks on Sunday, July 27, 2025:
- Ronald Acuña Jr. HIGHER than 1.5 Hits + Runs + RBI
- Julio Rodriguez LOWER than 1.5 Hits + Runs + RBI
- Mike Trout HIGHER than 1.5 Hits + Runs + RBI
Say I place this entry as a Standard for $10, which has a 5.5x payout multiplier. If all picks win, I receive a $55 total payout that includes $45 in profit and my $10 entry back. Remember to use the Underdog promo code TOPACTION to secure your offer.
Steps to Claim Your Underdog Promo
Use 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.