Sign up with the Underdog promo code WTOP to claim a generous bonus offer while also being able to back your favorite NBA and NFL players Thursday night. Use the links below to activate this welcome offer and create your first entry.
The outcome of your opening $5 entry doesn’t matter, as you will receive the $100 bonus regardless. You’ll have (10) $10 bonus entries to use Monday night and over the course of the week.
This bonus can be used for Higher/Lower picks, which can be used to either back or fade any players on the slate tonight. The TNF game is between the Bills and Texans, meaning you will able to place wagers on Josh Allen, James Cook Nick Collins and more.
So, sign up using the Underdog promo code WTOP to claim a $100 bonus. Then, check out the additional promotions and offers for the games, including a fun ladder challenge promotion on the app.
Underdog Promo Code WTOP for $100 NFL TNF Bonus
| Underdog Promo Code | WTOP |
| New User Offer | Play $5, Get $100 Bonus |
| In-App Promotions | 75% Any Sport Profit Boost, 50% Any Sport Profit Boost, Ladders, Streaks, Rescues, etc. |
| Terms and Conditions | 18+ and Present in Participating States |
| Bonus Last Verified On | November 20, 2025 |
| Information Confirmed By | WTOP |
There are a couple different ways to get in on the action with Underdog, but a standard entry is the most common. It results in the largest payouts, but all your legs must be correct. The other option if to flex an entry and still receive some winnings if one leg does not hit. The full payout is not as high if you do win every leg, but there is the safety is receiving some winnings with a partial hit.
On top of this, you can look into the ladders, streaks and rescues promotion offered in the app. The ladders one is especially fun, which allows you to select 3+ players to each hit their ceiling outcome, getting paid out more and more as your selected players climb. We will detail that more in the section below.
Underdog Ladders Promotion
Playing with this promotion allows you to select 3 or more players who you believe to have “ladder” potential, which means has a chance to go significantly above what their props are priced at.
These are riskier, obviously, but with higher payout. There are a total of four marks that each player needs to hit, with the payout increasing each marker. That said, you only get paid out based on the lowest mark hit by each player.
Back your favorite players tonight, such as:
- Nico Collins Receiving Yards
- De’Aaron Fox Points
- James Harden Points
Activating This Underdog Promo Code WTOP
Get bonus entries for NFL and college football picks this weekend by taking these steps to create an account.
- Head to the app and use the Underdog promo code WTOP to sign up.
- Fill in your email address, date of birth and other basic information to confirm your identity.
- Make a deposit using an accepted payment method, like a debit card or PayPal.
- Play $5.
Win or lose, you’ll gain 10X$10 bonus entries. Be sure to use the entire bonus before it expires.
