Underdog Promo Code COVERS: Play $5 Get $50 Fantasy Bonus for NCAA Conference Tournaments, WBC, NBA Games

Luc LeBlanc - Betting Editor at Covers.com
Luc LeBlanc • Content Editor 3+ years betting experience
Updated: Mar 15, 2026 , 05:30 PM ET • 3 min read

Use Underdog promo code COVERS for $50 in bonus entries on World Baseball Classic, NCAA tournaments, and NBA games this weekend.

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

This weekend's action-packed sports calendar featuring the Underdog promo code COVERS offers the perfect opportunity to capitalize on pivotal moments across college basketball conference tournaments, NBA matchups, and World Baseball Classic pool play. New users can claim $50 in bonus entries by placing just $5 on any of these high-stakes competitions.

With Selection Sunday approaching and MLB stars battling for national pride, Sunday, March 15 presents an ideal time to explore one of the best prediction market apps available.

Play $5, Get $50
Code: COVERS

World Baseball Classic and NCAA Tournament Underdog Promo Code Details

The Underdog promo code COVERS delivers exceptional value for new users looking to engage with this weekend's compelling sports action. After creating an account and placing your initial $5 entry on any contest, you'll automatically receive $50 in fantasy bonus entries within 72 hours. This promotion works perfectly for the current sports landscape, where conference tournament bubble teams are fighting for their tournament lives and World Baseball Classic powerhouses like Japan and the Dominican Republic are positioning for knockout round advancement.

The bonus structure includes several important terms to consider:

  • Must be 18+ (19+ in AL, NE; 21+ in AZ, MA, VA) and located in eligible states
  • Bonus entries carry a 1x wagering requirement within 14 days
  • 60-day expiration period for unused bonus funds
  • Account verification required before withdrawals
  • Not available in NJ, NY, MD, OH, MI, and PA

For example, if you enter a $5 contest predicting whether a bubble team will advance in their conference tournament and win, your original entry pays out normally while your bonus entries provide additional opportunities. Even if your initial prediction doesn't hit, the $50 in bonus entries gives you multiple chances to capitalize on NBA games or World Baseball Classic matchups throughout the weekend.

Compare this offer with other best prediction market promos to see the competitive advantage.


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 $50 Underdog Bonus

Getting started with your Underdog bonus is straightforward and can be completed in time for this weekend's action. Follow these steps to secure your $50 in bonus entries:

  1. Visit Underdog Fantasy and create your new account
  2. Enter promo code COVERS during registration
  3. Make your initial deposit of at least $5
  4. Place your first $5 entry on any available contest
  5. Receive your $50 in bonus entries within 72 hours
  6. Use bonus entries on World Baseball Classic, NCAA tournament, or NBA contests

Affiliate Disclosure: Our team of experts has thoroughly researched and handpicked each product that appears on our website. We may receive compensation if you sign up through our links.

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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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