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Underdog Promo Code SOUTH: Get $50 Bonus for NCAA Tournament Sweet 16 Picks

Alex Payton

By Alex Payton

Published:

The Sweet 16 is finally here, and there is nothing better than turning tonight’s elite matchups into a nice payday. It’s time to step up our game and chase some real value. By using the Underdog promo code SOUTH, new users can sign up and play just $5 to instantly get $50 in bonus entries.

We can use this welcome offer to build some higher-paying entries for today’s college basketball slate. Remember, this specific opportunity to boost your bankroll is for new users only, giving us the perfect ammunition to confidently explore the board ahead of the next college basketball game.

Underdog Promo Code SOUTH for the NCAA Tournament

Underdog Promo CodeSOUTH
New User OfferPlay $5, Get $50 Bonus Entries
Terms and ConditionsNew players only, 18+, must be a resident of legal state. 21+ in AZ, MA and VA. 19+ in AL and NE.
Date Last VerifiedMarch 26, 2026

I am always looking for edges when I’m handicapping the board, and the current Underdog promo code provides exactly that. By jumping on this exclusive welcome offer, you can sign up and play $5 to instantly get $50 in bonus entries. It’s a fast, straightforward way to build our initial bankroll. Instead of grinding out basic, single-action plays, we can use these bonus entries to construct more sophisticated slips for tonight’s biggest college basketball matchups without digging deeper into our own pockets.

To successfully claim this offer, you must be a new Underdog customer creating an account on the platform for the first time. You also need to meet the specific age requirements and be physically present in a participating state where the daily fantasy platform legally operates. Once your eligibility is locked in and your initial $5 entry is placed, those bonus entries will hit your account instantly.

NCAAB Totals and Projections for the Sweet 16

When we start building our slips, we want to look for high-usage players who dictate the pace of the game. Here are the five players with the highest consensus point over/under totals on tonight’s board:

Darius Acuff Jr. (Arkansas Razorbacks) vs. Arizona Wildcats

  • Line: 23.5 Points

Trey Kaufman-Renn (Purdue Boilermakers) vs. Texas Longhorns

  • Line: 19.5 Points

Bennett Stirtz (Iowa Hawkeyes) vs. Nebraska Cornhuskers

  • Line: 19.5 Points

Brayden Burries (Arizona Wildcats) vs. Arkansas Razorbacks

  • Line: 17.5 Points

Pryce Sandfort (Nebraska Cornhuskers) vs. Iowa Hawkeyes

  • Line: 16.5 Points

Taking Your Bonus Entries Beyond the Hardwood

The best part about this welcome offer is its versatility. We aren’t just limited to college basketball. Once your $50 in bonus entries are unlocked, you can cross-pollinate your slips with action from the NBA, NHL, or MLB. I often like to key a confident college hoops pick with a reliable NHL shots-on-goal prop or an MLB strikeout total.

Whether you’re handicapping an NBA superstar’s points or an MLB pitcher’s strikeout total, these bonus entries give you the freedom to build exotic, multi-sport combinations that have a real chance at a massive payout.

Collect $50 Bonus with the Underdog Promo Code

To claim your bonus, you must be a new user and meet the minimum age and region requirements for your state. Click here and follow these simple steps to get started:

  1. Sign Up: Create and register a new account using your standard personal information. Be sure to enter the Underdog promo code SOUTH during the registration process to lock in your eligibility.
  2. Make a Deposit: Fund your account by depositing at least $5 using one of the available secure payment methods.
  3. Place Your Entry: Play a $5 entry on any of tonight’s matchups to successfully activate your $50 in bonus entries.

Once we have our funds, Underdog gives us two strategic ways to construct our entries. If you want to chase the largest payout, the Standard Entry requires 2+ picks—think of this like a traditional parlay where all legs must hit for your entry to win. If you prefer a safety net, I highly recommend the Flex Entry. Available for slips with 3+ picks, this allows us to still receive some winnings even if one leg of the entry is incorrect.

Alex Payton

Resident of Kentucky, Alex is a graduate from the University of Louisville and avid Cardinals fan. He also follows the New York Yankees, Indianapolis Colts, and has multiple years of experience in the online gambling industry.

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