Register now with the Underdog promo code TOPACTION and unlock $75 in fantasy bonus entries today. Submit a $5 lineup using picks from any game or sporting event. No matter your lineup outcome, you get $75 in fantasy bonus entries to use on future contests.
With the Underdog promo code TOPACTION, you can start building your lineup with NBA picks right away. And with the Super Bowl coming up this Sunday, Seahawks vs. Patriots at 6:30 p.m. ET on NBC, you can use your fantasy bonus entries for NFL action too.
Today is perfect for submitting an NBA DFS lineup, with 10 games on the schedule. Looking ahead, you can save your fantasy bonus entries for NFL lineups this weekend.
Take advantage of the Underdog promo code TOPACTION and claim the $75 sign-up offer in these states: AL, AK, AR, CA, DC, FL, GA, IL, IN, KS, ME, MS, MN, NE, NM, NC, ND, OK, OR, RI, SC, SD, TX, VT, VA, UT, WI, and WY.
Underdog Promo Code TOPACTION: Submit $5 NBA Lineup, Get $75 Bonus for Super Bowl LX
Use the Underdog promo code TOPACTION and submit your $5 NBA DFS lineup today to unlock $75 in fantasy bonus entries. With this bonus, you can create a lineup featuring picks from Super Bowl LX, including the Seahawks vs. Patriots matchup.
Right now, you can place your NBA lineup by choosing “Higher” or “Lower” on a player projection. The more picks you add to your lineup, the bigger your potential payout. Here’s an example of a lineup for tonight’s NBA slate:
| Player | Team | Pick |
|---|---|---|
| Luka Doncic | Los Angeles Lakers | Higher Than 7.5 Rebounds |
| Cooper Flagg | Dallas Mavericks | Higher Than 20.5 Points |
| Dillon Brooks | Phoenix Suns | Lower Than 28.5 Points + Rebounds + Assists |
The best part? It doesn’t matter if your lineup wins or loses. Underdog provides the $75 bonus no matter the outcome. That means you can immediately submit an NFL DFS lineup for the Seahawks vs. Patriots game. Just make sure you use the Underdog promo code TOPACTION to claim the welcome offer.
Need another reason to jump in? Here’s what DFS expert Daniel Preciado has to say about Underdog:
“Underdog makes DFS simple and exciting, even for beginners. Their bonus offers give you a real chance to submit new lineups without the risk.”
How to Sign Up for Underdog on Tuesday, February 3, 2026
Follow the steps below to claim the Underdog promo code TOPACTION and make your first deposit and lineup on Tuesday:
- Step 1: Use the Underdog promo code TOPACTION 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 for a play $5, get $75 in fantasy bonus entries 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 with picks from the NBA, NFL, or any other sport.
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, NJ, 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).
