Create a new daily fantasy sports account today at Underdog promo code TOPACTION and take advantage of a $50 play-through bonus. Simply sign up and play $5+ at Underdog Fantasy and get $50 in bonus cash. This bonus cash can be used to create entries and play draft contests for any sporting event, including Vikings vs. Bears on Monday Night Football at 8:15 p.m. ET. Use the Underdog promo code TOPACTION to register now.
Underdog Fantasy is one of the leading DFS platforms in the industry right now. The app is legal in a majority of U.S. states, including many of those that do not have legal online sports betting yet. Claim one of the top alternatives to the best NFL betting promos today with the Underdog Fantasy promo code TOPACTION. Check out the chart below for information on where you can claim this sign-up offer.
| 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 |
Underdog Promo Code TOPACTION: Play Vikings vs. Bears MNF Entries Now
Register today for a new DFS account with the Underdog promo code TOPACTION and play a $5+ initial entry to get $50 in bonus cash. Let's discuss how entries work at Underdog Fantasy so you can play your first one with the sign-up offer on Vikings vs. Bears tonight.
At Underdog Fantasy, there are two different entry formats to choose between: Standard and Flex. A Standard entry provides a much larger payout than a Flex if you go perfect, but the appeal of a Flex entry is that you receive a small payout even if you lose one of your player projection picks.
Here is an example of an entry I created for tonight's Monday Night Football matchup between the Minnesota Vikings and the Chicago Bears:
- Justin Jefferson HIGHER than 79.5 Receiving Yards
- Caleb Williams HIGHER than 219.5 Passing Yards
- Colston Loveland LOWER than 28.5 Receiving Yards
As a Standard, this entry has a 6.3x payout multiplier. Here is how it works in the context of the welcome offer available with the Underdog promo code TOPACTION:
- If all picks win, I receive a $31.50 total payout ($26.50 profit + $5 entry returned) and $50 in bonus cash.
- If one or more picks lose, I receive $50 in bonus cash only.
Remember to use the Underdog promo code TOPACTION to claim your bonus today.
How to Claim Your Underdog Fantasy Promo: Monday, September 8, 2025
Follow the steps outlined below to claim your $50 play-through 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 $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 sporting event, including Vikings vs. Bears on Monday Night 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, 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)