Underdog Promo Code COVERS: Play $5, Get $50 Bonus for St John's vs. Duke, NCAA Tournament on Friday

Luc LeBlanc - Betting Editor at Covers.com
Luc LeBlanc • Content Editor 3+ years betting experience
Updated: Mar 27, 2026 , 02:30 PM ET • 3 min read

Use Underdog promo code COVERS for $50 bonus entries on St. John's vs Duke. Claim your fantasy sports bonus for Friday's big game.

Photo By - Use Underdog promo code COVERS to play $5, Get $50.

The Underdog promo code COVERS delivers $50 in bonus entries when you place your first $5 entry, making it perfect timing for Friday's St. John's vs. Duke showdown. This East Regional semifinal features Naismith Award favorite Cameron Boozer leading top-seeded Duke against Rick Pitino's resurgent Red Storm squad.

The current welcome offer available as of Friday, March 27 provides excellent value for fantasy sports enthusiasts looking to get involved with one of the best prediction market apps available today.

Play $5, Get $50
Code: COVERS

Underdog Promo Code COVERS Delivers $50 Bonus

The Underdog promo code COVERS unlocks a generous welcome bonus that rewards new users with $50 in fantasy bonus entries after placing an initial $5 entry. This promotion applies perfectly to Friday's St. John's vs. Duke matchup, where you could build lineups featuring Cameron Boozer's double-double potential or Zuby Ejiofor's Big East Player of the Year production. The bonus entries arrive in your account within 72 hours and come with straightforward terms: a 1x wagering requirement that must be completed within 14 days, and the bonus must be used within 60 days or it expires.

For example, if you place a $5 entry on a Duke-St. John's fantasy lineup and it wins, you keep your winnings plus gain access to the $50 bonus entries for future contests. If your initial entry doesn't cash, you still receive the full $50 bonus to continue playing. Account verification is required before withdrawing any winnings or bonus funds, and this offer is not available in New Jersey, New York, Maryland, Ohio, Michigan, and Pennsylvania. 

Compare this generous welcome bonus with other best prediction market promos to see why Underdog stands out in the daily fantasy space.


Use the correct Underdog promo code for your state

Underdog Promo Code Eligible States
 COVERS AK, AL, AR, AZ, CA, CO, FL, GA, IL, IN, KS, KY, MA, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, WY

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How to Claim Your St. John's vs. Duke Bonus

Claiming your Underdog welcome bonus for Friday's St. John's vs. Duke game requires just a few simple steps.

  1. First, visit Underdog Fantasy and create your new account, ensuring you enter the promo code COVERS during registration to qualify for the bonus.
  2. Next, make your initial deposit and place your first $5 entry on any available contest, including fantasy lineups for the Duke-St. John's matchup featuring players like Cameron Boozer or Zuby Ejiofor.
  3. Finally, your $50 in bonus entries will be automatically credited to your account within 72 hours, giving you additional opportunities to build winning lineups throughout the tournament.

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Luc LeBlanc
Content Editor

Luc has been passionate about sports since he was a child, playing competitive hockey and staying closely tuned to professional leagues. Today, he brings that same energy to his work as a Content Editor, covering NHL games, player props, and betting trends with a sharp, analytical eye.

Since 2023, Luc has been writing picks and analysis for various publications, helping readers discover value in several major sports. While hockey is his specialty, he also closely follows tennis, keeping up with both the ATP and WTA Tours.

A graduate of Saint Mary’s University (BSc, Geography, 2025), Luc approaches sports betting the way he approaches maps and statistics by looking for patterns, trends, and angles that give him an edge. He focuses on research-backed and well-informed picks, spotting correlations, and finding the best opportunities in player props and game markets.

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