Sign up with the Underdog promo code TOPACTION today to create a new daily fantasy sports account and take advantage of the brand's valuable welcome offer. Play $5+ at Underdog Fantasy today and get $75 in bonus entries regardless of the outcome of your initial entry. Use the bonus you receive with the Underdog promo code TOPACTION to play entries containing picks from across the sports world, including today's NBA slate and this week's college football games.
Underdog is legal in a majority of U.S. states, making this welcome bonus one of the best alternatives to the top NBA betting promos and college football betting promos today. The list of states in the chart below includes many of those that do not have legal online sports betting yet. Get started now with the Underdog Fantasy promo code TOPACTION.
| Underdog Promo Offer | DFS States Available | Underdog Promo Code Sign-Up Link |
|---|---|---|
| Play $5, Get $75 in Bonus Entries | AL, AK, AR, DC, FL, GA, IL, IN, KS, ME, MO, MS, MN, NE, NM, NC, ND, OK, OR, RI, SC, SD, TX, VT, VA, UT, WI, WY | TOPACTION |
Underdog Promo Code TOPACTION: Get $75 in Bonus Entries for NBA, College Football Playoff
Register for a new DFS account now using the Underdog promo code TOPACTION and claim $75 in bonus entries once you play $5+ on the app. These bonus entries do not expire and can be utilized to play entries you create containing picks from any sport, including NBA and the College Football Playoff.
There are two different entry formats available to choose between at Underdog Fantasy: Standard and Flex. A Standard entry requires all of your picks to win to receive a payout, while a Flex entry requires you to win all picks or lose just one. The key difference is that a Flex entry provides a much smaller payout when you win all of your picks, while a Standard entry rewards you much more for the risk you take.
Here is an example of an entry I created for today's games in the NBA plus the CFP this week:
- Luka Doncic Higher Than 33.5 Points
- Cooper Flagg Higher Than 33.5 Points + Rebounds + Assists
- Trinidad Chambliss Lower Than 0.5 Interceptions Thrown
Suppose I place this entry as my $5 initial entry with the Underdog promo code TOPACTION, which has a 6.2x payout multiplier. Here is what I receive based on the outcome of it:
- If all of my picks win, I receive a $31 total payout ($26 profit + $5 entry back) and $75 in bonus entries.
- If one or more of my picks lose, I receive $75 in bonus entries.
Underdog Fantasy Promo Code Sign-Up Steps: Tuesday, January 6, 2026
Follow the steps outlined below to claim your $75 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 $75 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 NBA and college football.
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).
