Underdog Promo Code TOPACTION: Secure $1,000 in Bonus Funds for NBA Lineup, Any Sports

Underdog Promo Code TOPACTION: Secure $1,000 in Bonus Funds for NBA Lineup, Any Sports article feature image
Credit:

Chris Coduto/Getty Images. Pictured: Kevin Durant

Tuesday’s NBA slate features a packed lineup of games, offering plenty of opportunities to build a winning lineup. Sign up today with the Underdog Fantasy promo code TOPACTION to claim a 50% deposit match bonus of up to $1,000 and start making picks on tonight’s top matchups.

New users who sign up with the Underdog Fantasy promo code TOPACTION receive a 50% deposit match, up to $1,000 in bonus funds. To unlock the full bonus, deposit $2,000, and Underdog Fantasy credits your account with an additional $1,000 in bonus funds. Once the deposit is complete, you can use your bonus funds to enter pick’em contests featuring players from any sport, including the NBA.

Underdog Fantasy is accessible in multiple states, including AL, AK, AZ, AR, CA, DC, DE, GA, IL, KS, KY, MA, MN, MO, NE, NM, NC, ND, OK, OR, RI, SC, SD, TN, TX, UT, VT, VA, WI, WV, and WY.

This deposit match bonus carries a 1x playthrough requirement, meaning you must wager your deposit and bonus amount before withdrawing any winnings. If you deposit $2,000 and receive a $1,000 bonus, you must play through $3,000 within 14 days to meet the requirement.

Use the Underdog Fantasy promo code TOPACTION or click the sign-up module below to claim your bonus and start making NBA picks today.

How to Use Underdog Fantasy Promo Code TOPACTION

After signing up and depositing, head to the Underdog Fantasy pick’em section to explore a wide range of player projections. Available NBA categories include points, assists, rebounds, and combined stats like points + rebounds + assists. Your goal is to choose “Higher” or “Lower” for each player projection in your lineup.

Underdog Fantasy allows users to include up to six picks in a single entry, with a maximum payout of 35x. If your lineup includes at least three picks, you must choose between Standard and Flex play:

  • Standard Entry: If all your picks are correct, win up to 6x your entry amount.
  • Flex Entry: Offers a lower payout but provides a safety net—win 3x if all picks are correct, and still earn a 1x payout if you go 2-for-3.

To showcase how this works, here’s an example of a three-pick lineup built using bonus funds from the Underdog Fantasy promo code TOPACTION for Tuesday’s NBA action:

With this lineup, selecting a Standard entry would result in a 6x payout if all three picks hit. Opting for a Flex entry provides a 3x payout if all picks win and still offers a 1x payout even if one selection falls short.

Underdog Fantasy gives NBA fans an alternative way to engage with Tuesday’s matchups while offering substantial bonus funds for new users. Sign up today with Underdog Fantasy promo code TOPACTION and start making your picks.

Underdog Fantasy Sign-Up Steps

Follow the steps below to claim the Underdog Fantasy promo code TOPACTION and make your first deposit on Tuesday:

  • Step 1: Click this link or any sign-up module on this page to download the Underdog Fantasy 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 Fantasy account.
  • Step 4: Enter the Underdog Fantasy promo code TOPACTION to get up to $1,000 in bonus funds from the 50% deposit match welcome offer.
  • Step 5: Agree to the Underdog Fantasy Terms of Use and Privacy Policy. Confirm you are at least 18 years old (19+ in Alabama/Nebraska, 21+ in Massachusetts/Arizona).
  • Step 6: Click "Sign Up."
  • Step 7: Make your first deposit of $10+. It is matched at a 50% rate, up to $1,000 in bonus funds.
  • Step 8: Create your first entry at Underdog Fantasy with picks from the NBA or any sport.

Must be 18+ (19+ or 21+ depending on state of residence) and within applicable state. Full T&Cs apply.

This site contains commercial content. We may be compensated for the links provided on this page. The content on this page is for informational purposes only. Action Network makes no representation or warranty as to the accuracy of the information given or the outcome of any game or event.