Sports Gambling

Underdog Promo Code BROAD: Claim $50 Bonus for March Madness DFS Picks

By Matt Modi

Published: Mar 19th, 2026 · 1:11 PM EDT

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All new DFS users can sign up with the Underdog promo code BROAD to secure a $50 bonus, and start placing entries on March Madness and the NBA today.

Create a new account using this promo code, and place your first entry for $5. That is is all it takes to redeem the $50 in bonus entries, as the result of that initial entry does not matter. There is a ton going on today with the start of the NCAA Tournament, along with a fun NBA slate highlighted by the Spurs vs. Suns and Lakers vs. Heat.

Underdog Promo Code BROAD for NBA, March Madness Bonus

Underdog Promo Code	BROAD
New Underdog User Offer	Play $5, Get $50 Bonus Entries
Terms and Conditions	New players only, 18+, must be a resident of legal state. 21+ in AZ, MA and VA. 19+ in AL and NE.
Date Last Verified	March 19th, 2026

Claiming your welcome bonus for all your NCAA Tournament and NBA entries today is a straightforward process. This exclusive promotion is available specifically to new Underdog customers who meet the minimum age requirements and are currently located in a participating state.

To get started, simply complete your registration, make your first deposit, and play just $5 on your initial entry. The moment that qualifying entry is placed, Underdog will instantly credit your account with $50 in bonus entries, giving you plenty of extra funds to use throughout tonight’s NBA schedule.

NBA Entries Tonight via Underdog

If you are looking to put your Underdog promo to work on tonight’s matchups, targeting player point totals is a great place to start. Here are the five highest point projections on the board for tonight’s slate:

• Luka Dončić (Los Angeles Lakers) vs. Miami Hean: 31.5 Points
• Devin Booker (Phoenix Suns) @ San Antonio Spurs: 27.5 Points
• Victor Wembanyama (San Antonio Spurs) vs. Phoenix Suns: 23.5 Points
• Austin Reaves (Los Angeles Lakers) @ Miami Heat: 21.5 Points
• Jalen Green (Phoenix Suns) @ San Antonio Spurs: 21.5 Points

We put a lot of stock into recent roster dynamics, and the board is understandably topped by Lakers superstar Luka Dončić. Since his blockbuster move to Los Angeles, Dončić has completely transformed the Lakers’ offense. He is currently leading the NBA with 32.9 points per game on the season and enters tonight riding a scorching-hot streak, pushing his production to 37.6 points per game over his last five outings. With LeBron James willingly taking a back seat to focus on defense, the offense now runs through Dončić and emerging star Austin Reaves. Reaves has elevated his on-ball usage significantly, making his 21.5-point projection an intriguing look against a Heat team fighting to avoid the Play-In tournament.

Elsewhere, we are keeping a close eye on the Phoenix Suns and San Antonio Spurs matchup. Devin Booker holds the second-highest projection of the night at 27.5 points, having surged to 35.0 points per game over his last five appearances alongside his dynamic backcourt partner Jalen Green. On the other side of the floor, San Antonio’s Victor Wembanyama sits at 23.5 points. The second-year phenom has been peaking for the Spurs, and has really shown up against the top competition recently.

How to Redeem the Underdog Promo Code BROAD

Getting started before the Los Angeles Lakers and Miami Heat tip off at 8:00 PM ET is a simple process. To unlock your $50 in bonus entries, just follow these quick activation steps:

1. Create Your Account: Download the app or navigate to the site to register your new account using your standard personal information.
2. Enter the Promo Code: Be sure to input the promo code BROAD during the sign-up process to lock in your welcome offer.
3. Make a Deposit: Fund your account by depositing at least $5 using one of the provided secure payment methods.
4. Play Your First Entry: Place a $5 entry on tonight’s Lakers vs. Heat matchup (or any other available market) to instantly activate your $50 in bonus entries.

Note: You must be a new user and meet the minimum age and region requirements in your state to be eligible for this promotion.

Once your account is loaded and you are ready to build your entries for the game, you will have two distinct ways to structure your picks:

• Standard Entry: This format requires a minimum of 2+ picks. Selecting a standard entry will trigger the largest potential payout, but keep in mind that all legs must hit for your entry to be successful.
• Flex Entry: If you want a bit of a safety net, you can choose to flex an entry with 3+ picks. With a flex entry, you can still receive some winnings even if a leg is incorrect.