Claim a $75 bonus for the two NBA Cup Quarterfinal games tonight between the Suns-Thunder and Spurs-Lakers with the Underdog promo code WTOP. All new users who sign up today are able to claim a $75 bonus for the NBA tonight, or NFL TNF tomorrow.
Create a new account using this promo code and place a $5 entry on the NBA tonight, NFL tomorrow or any other sport, which will be enough to redeem this $75 bonus. The outcome of the initial entry does not matter, making this bonus guaranteed.
So, you can place your favorite entry for the NBA games tonight and play the higher than option backing superstars such as Devin Booker, Shai Gilgeous-Alexander, De’Aaron Fox, Luka Doncic and LeBron James.
Redeem the Underdog promo code WTOP to receive a $75 bonus guaranteed.
Underdog Promo Code WTOP for $75 NBA, NFL Bonus
| Underdog Promo Code | WTOP |
| New User Offer | Play $5, Get $75 Bonus (10X$10 Bonus Entries) |
| In-App Promotions | 50% NBA Profit Boost, 30% Soccer Profit Boost, 30% Tennis Profit Boost, Ladders, Streaks, Rescues, Etc… |
| Terms and Conditions | 18+ and Present in Participating States |
| Bonus Last Verified On | December 10, 2025 |
| Information Confirmed By | WTOP |
There are two types of entries that users can play on Underdog, a standard entry or a flex entry.
- Standard entry: Place a 2+ leg entry, and every pick must be correct to receive winnings. The more legs in the entry, the higher the payout.
- Flex entry: Place a 3+ pick entry and still receive some winnings of only one leg loses. That said, the payout is lower if all of the legs hit.
After these types of entries, you can play promotional types of entries on any sport by playing ladders, streaks and rescues.
How to Sign Up with the Underdog Promo Code
New customers can take these steps to grab a bonus for the NBA tonight. Take advantage of the guide on this DFS app to learn about the special features and boosts.
- Head to the app and apply the Underdog promo code WTOP.
- Enter your date of birth and other account info to verify your identity.
- Use online banking or PayPal to make a deposit.
- Play $5.
The outcome of your opening $5 contest doesn’t matter, so you are guaranteed to receive a $75 bonus.
50% NBA Profit Boost Tonight
- Shai Gilgeous-Alexander higher than 28.5 points
- Chet Holmgren higher than 17.5 points
- Luka Doncic higher than 32.5 points
- Boosted from 3.96x to 5.44x payout
You can also use the ladders promotion to back 3+ players that you think of hitting a ceiling outcome and going significantly above what their props are priced at for a high payout.
Play all this and more by signing up with the Underdog promo code WTOP.
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).
