Register for a new DFS account on Tuesday, April 28 using the Underdog promo code TOPACTION to score $50 in fantasy bonus entries. To secure your bonus now, simply play $5+ in NBA DFS picks at Underdog. Right now represents an excellent time to get started with this sign-up offer with a trio of games in the NBA playoffs tonight: 76ers vs. Celtics at 7 p.m. ET on ESPN, Hawks vs. Knicks at 8 p.m. ET on NBC, and Trail Blazers vs. Suns at 9:30 p.m. ET on ESPN.
Underdog is one of the best DFS apps on the market, and this welcome offer is an outstanding way to get started now. The platform is legal in majority of U.S. states, making it an excellent alternative to online sports betting for the NBA playoffs. Get started now in AL, AK, AR, CA, DC, FL, GA, IL, IN, KS, ME, MS, MN, NE, NM, NC, ND, OK, OR, RI, SC, SD, TX, VT, VA, UT, WI, and WY. Click on the sign-up module below to get started with the Underdog promo code TOPACTION.
Take a look at the chart below for more information about the Underdog sign-up bonus.
| Underdog Promo Offer | DFS States Available | Underdog Promo Code Sign-Up Link |
|---|---|---|
| Play $5, Get $50 in Bonus Entries | AL, AK, AR, CA, 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 ACTION Yields $50 Bonus for NBA DFS Picks on April 28
Sign up now using the Underdog promo code TOPACTION to secure a $50 welcome bonus to use on DFS picks in the NBA playoffs today. Underdog is a top DFS app that works very differently than traditional sports betting. You select Higher or Lower on player projections and combine them into entries. The more picks you add to your entry, the higher your payout multiplier becomes.
There are two different types of entries available to choose between at Underdog. Choose a Standard entry, which requires all of your picks to win to receive a payout. Alternatively, select a Flex entry that yields a payout if you win all of your picks or lose just one. The key difference comes in the payout multiplier, as perfection yields a much greater payout with a Standard due to the difficulty of winning.
Here is a look at an example of a $10 Standard entry I created with NBA DFS picks, which has a 5.8x payout multiplier:
- Jayson Tatum Higher Than 24.5 Points
- Karl-Anthony Towns Higher Than 11.5 Rebounds
- Deni Avdija Higher Than 28.5 Points + Assists
With the Underdog promo code TOPACTION, I receive $50 in fantasy bonus entries regardless of the outcome of this entry. If all picks win, I receive a $58 payout that includes $48 in profit and $10 returned to my account.
Underdog Sign-Up Steps: Tuesday, April 28, 2026
Follow the steps outlined below to claim your $50 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 the NBA playoffs.
Underdog Terms & Conditions
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. Offer not valid in MD, MI, NJ, NY, OH, and PA. Concerned with your play? Call 1-800-MY-RESET or 1-800-GAMBLER or visit www.ncpgambling.org; AZ: 1-800-NEXT-STEP (1-800-639-8783) or text NEXT-STEP to 53342; NY: Call the 24/7 HOPEline at 1-877-8-HOPENY or Text HOPENY (467369).
