Put the Underdog promo code TOPACTION to work and score a $50 welcome bonus for March Madness. Submit a $5 lineup of college basketball DFS lineups to net $50 in fantasy bonus entries. Tap the module below to create your account and place your first player pick 'em lineup today, Sunday, March 29, 2026.
Tonight's Elite Eight matchups are Tennessee vs. Michigan (2:15 p.m. ET on CBS) and UConn vs. Duke (5:05 p.m. ET on CBS). Verify you're located in an available Underdog state via the table below and tap the link to sign up.
| Underdog Promo Code | Underdog Sign-Up Bonus | Underdog States Available |
|---|---|---|
| Underdog Promo Code TOPACTION | Play $5, Get $50 in Fantasy Bonus Funds | 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 |
Use Underdog Promo Code TOPACTION to Make March Madness DFS Picks
With $50 worth of fantasy bonus entries on the line, why not sign up with the verified Underdog promo code TOPACTION? After all, the only thing better than placing a lineup of March Madness picks is getting rewarded with $50 in fantasy bonus entries.
To make a lineup of Tennessee vs. Michigan and UConn vs. Duke picks in the Elite Eight, I went to the Action Network experts. I read this Elite Eight predictions article to get informed on the most important information, and made this 4-pick DFS entry below:
| Player | Pick |
|---|---|
| Yaxel Lendenborg | Higher Than 15.5 Points |
| Ja'Kobi Gillespe | Higher Than 17.5 Points |
| Alex Karaban | Lower Than 12.5 Points |
| Maliq Brown | Higher Than 3.5 Points |
- Lendenborg has been unstoppable in three of his last four games, with an average of 22.6 points per game. Michigan averaged the second most points per game through the first three rounds of an NCAA Tournament in history, and Lendenborg is a big reason.
- I'm stunned to see Gillespe's scoring projection set so low after his last five outings. The lowest points he scored was 15, and he went for 21+ in three of his last four games. In a game I expect to be a shootout, look for Gillespe to lead the way.
- As good as Karaban has been in his last three games, I expect him to come back down to Earth against Duke. The Blue Devils have a tough and imposing defense, especially in the paint. I don't think Karaban will have answers for Duke's size and athleticism.
- Brown is the epitome of phrases like 'glue guy', 'hustle' and 'dirty work'. Since the Blue Devils are so gifted offensively, Brown isn't called on to score often. But he's put in at least four points in his last four contest, and will see enough minutes to have a chance.
Get in on the action now at Underdog to make NCAA Tournament player picks on Tennessee vs. Michigan and UConn vs. Duke tonight.
How to Register With the Underdog Promo Code TOPACTION
Follow the Action Network verified steps below to make an Underdog account and place college basketball DFS picks:
- Use the following link to visit the Underdog new user landing page.
- Enter the Underdog promo code TOPACTION in the prompted box.
- Insert your personal identifying information, like your name, age, and location.
- Read and agree to the Underdog privacy policy, as well as terms and conditions.
- Make a $10+ deposit into your Underdog account with any banking method.
- Place a $5+ lineup of Elite Eight DFS picks to unlock $50 in fantasy bonus entries.
What Are the Underdog Daily Promotions?
The Underdog promo code TOPACTION unlocks a $50 new player promotion, but that isn't all there is to their deals. Returning customers get access to a flock of promotions every day. Here are the the available promotions on March 29.
- 40% Any Sport Boost
- 30% MLB Boost
- Earn a $5 Bonus Entry
Must be 18 years or older and have a legal, U.S. residential address within the applicable state, D.C., or U.S. territories. Not available in AZ, IL, MA, MD, MI, MT, NJ, and OH.
