Sign up with the new Underdog promo code TOPACTION to get a $50 play-through bonus offer. Simply register for a new DFS account and play a $5+ entry containing picks from any sport. Use the Underdog promo code TOPACTION today to play your $5+ entry on the NFL preseason games today, Saturday, August 16.
Underdog Fantasy is one of the premier destinations for daily fantasy sports right now and this offer represents one of the best alternatives to the top NFL betting promos. Instead of placing bets, you create entries at Underdog that contain picks on player projections. With every pick you add into your entry, your payout multiplier increases. Get started now with the Underdog promo code TOPACTION by clicking on the sign-up module below.
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 |
Use New Underdog Fantasy Promo Code TOPACTION for NFL Preseason Entries Now
When you register for a new DFS account today with the Underdog Fantasy promo code TOPACTION, play a $5+ entry to get $50 in bonus cash. This bonus is added to your account regardless of the outcome of your initial entry. This entry can contain picks from any sporting event, including players from any of today's NFL preseason games.
Let's take a look at how entries work at Underdog Fantasy. There are two different formats available to choose from: Standard and Flex. A Standard entry requires that you win all of your picks to receive a larger payout, while a Flex entry yields a smaller payout if you go perfect. The key difference is that with a Flex, you receive a relatively small payout if you lose just one pick in the entry.
Here is an example of an entry I created with the Underdog Fantasy promo code TOPACTION:
- Bryce Young HIGHER than 68.5 Passing Yards
- Ashton Jeanty HIGHER than 0.5 Rushing + Receiving Touchdowns
- Emeka Egbuka HIGHER than 0.5 Rushing + Receiving Touchdowns
Say I place the entry above as my $5 initial entry with the Underdog promo code TOPACTION as a Standard. This entry has a 7x payout multiplier.
- If all picks win, I receive a $35 total payout ($30 profit + $5 entry returned to my account) and $50 in bonus cash.
- If one or more picks lose, I receive $50 in bonus cash only.
Steps to Claim Your Underdog Fantasy Promo: Saturday, August 16, 2025
Follow the steps outlined below to claim your $50 play-through bonus with the Underdog 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 sport, including 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)