Take advantage of the new Underdog promo code TOPACTION to claim one of two sign-up offers today to use toward entries on Week 6 NCAAF games. The structure of the welcome offer at Underdog is quite unique. New users receive one of two bonuses: $100 in bonus funds outright or $100 in entries (10 $10 entries). You have a 50/50 shot at getting either bonus format. We look at some examples of how each offer available with the Underdog promo code TOPACTION works in the next section. Get started by clicking on the sign-up module below.
The Underdog Fantasy promo code TOPACTION is available to new users in a majority of U.S. states, including many that do have legal online sports betting yet. This makes the welcome offer one of the best alternatives to the top college football betting promos today. Check out the chart for a list of states where you can take advantage of the Underdog promo code TOPACTION today.
| Underdog Promo Offer | DFS States Available | Underdog Promo Code Sign-Up Link |
|---|---|---|
| Play $5, Get $100 in Bonus Funds or Entries | 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, Explained
When new users register with the Underdog promo code TOPACTION, they receive one of two $100 bonuses. Play $5+ at Underdog and get either $100 in bonus funds or $100 in entries. The bonus funds can be utilized to play entries or enter draft contests in any sport. The entries are distributed in 10 equal increments of $10.
Underdog Fantasy Promo Code TOPACTION: Play NCAAF Entries Today
Sign up now with the Underdog promo code TOPACTION now and play $5+ to get a $100 bonus. Play your $5+ initial entry or use your bonus to create entries on Week 6 college football games today.
There are two different ways to play entries at Underdog: Standard and Flex. A Standard entry supplies the largest payout multiplier and requires that you win all of your picks to receive the payout. Alternatively, a Flex entry provides a smaller payout than the Standard if you go perfect and also provides a small payout if you lose just one of your picks.
Here is an example of an entry I created using picks on projections for NCAAF games today:
- Luke Altmyer (Illinois) Higher Than 252.5 Passing Yards
- Nicholas Singleton (Penn State) Higher Than 74.5 Rushing Yards
- Rickie Collins (Syracuse) Lower Than 227.5 Passing Yards
Let's say I play this as a Standard for my $5 initial entry with the Underdog Fantasy promo code TOPACTION. This entry has a 6x payout multiplier:
- If all of my picks win, I receive a $30 total payout ($25 profit + $5 entry back) and $100 in bonus cash.
- If one or more of my picks lose, I receive the $100 in bonus cash only.
Underdog Promo Sign-Up Steps: Saturday, October 4, 2025
Follow the steps outlined below to claim your $100 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 $100 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 Week 6 NCAAF games.
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 operates. Terms apply. 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)" with "Must be 18+ (21+ MA & AZ, 19+ AL, NE) and present in a state where Underdog operates. subject to change. Terms apply."
