Sign up with the Underdog promo code TOPACTION to secure a $50 play-through bonus offer. Underdog Fantasy is one of the top DFS apps to register at today and represents one of the best alternatives to online sports betting. Simply create a new account using the Underdog promo code TOPACTION and play $5+ to get $50 in bonus cash. Use the bonus to create entries containing picks from any sport, including NCAAF and NFL games this week.
This sign-up offer available with the Underdog Fantasy promo code TOPACTION is exclusively available to new users. The app is legal in a majority of U.S. states, including many of those that do not have legal online sports betting yet. Claim one of the best alternatives to the top college football betting promos and NFL betting promos now. Check out the chart below for more information about the Underdog promo code TOPACTION, including a list of states where the promo is available to claim.
| Underdog Fantasy Promo | States Available | Underdog Promo Code Sign-Up Link |
|---|---|---|
| Play $5, Get $50 | AL, AK, AR, DC, FL, GA, IL, IN, KS, ME, MS, MN, NE, NM, NC, ND, OK, OR, RI, SC, SD, TX, VT, VA, UT, WI, WY | TOPACTION |
Underdog Promo Code TOPACTION: Play NCAAF & NFL Entries Today
When you register for a new account today with the Underdog promo code TOPACTION, play a $5+ entry to get $50 in bonus cash. This bonus cash is added to your account regardless of the outcome of your initial entry. The entry can contain picks from any sport, including Week 3 NCAAF and NFL games.
At Underdog Fantasy, there are two different entry formats you can choose from. A Standard entry provides the most significant payout multiplier and requires that you win all of your picks to get paid. Alternatively, a Flex entry provides a smaller payout multiplier if you go perfect, while also yielding an even smaller payout if you lose one of your picks. Because a Standard entry is much more difficult to win, the payout is much higher.
Here is an example of an entry I created combining picks from the NCAAF and NFL this weekend:
- Michigan to Win vs. Nebraska
- James Cook LOWER than 62.5 Rushing Yards
- Tua Tagovailoa LOWER than 235.5 Passing Yards
Say I place the entry above as my first with the Underdog Fantasy promo code ACTION for $5. This entry has a 5x payout multiplier.
- If all picks win, I receive a $25 total payout ($20 profit + $5 entry returned) and $50 in bonus cash.
- If one or more picks lose, I receive $50 in bonus cash only.
How to Claim Your Underdog Fantasy Promo: Tuesday, September 15, 2025
Use the steps outlined below to claim your $50 play-through bonus with the Underdog Fantasy promo code TOPACTION today:
- 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 and play a $5+ entry to get $50 in bonus cash.
- Step 5: Agree to the Underdog Terms of Use and Privacy Policy.
- Step 6: Click "Sign Up."
- Step 7: Make your first deposit of $10+.
- Step 8: Create your first entry at Underdog with picks from any sporting event, including NCAAF and NFL.
Must be 18+ (19+ in AL, NE; 19+ in CO for some games; 21+ in AZ, MA, and VA) and present in a state where Underdog Fantasy operates. Terms apply. See assets.underdogfantasy.com/web/PlayandGetTerms_DFS_.html for details. Offer not valid in MD, MI, NY, OH, and PA. Concerned with your play? Call 1-800-GAMBLER or visit www.ncpgambling.org; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369)
