Underdog Promo Code 'COVERS': Play $5 On Mavs Thunder, Get A $100 Bonus

Use Underdog Fantasy promo code COVERS for $100 bonus on Mavericks vs Thunder. Get started with a just $5 entry on Friday, December 5.

Peter Clarke - Senior Editor at Covers.com
Peter Clarke • Senior Editor
Dec 5, 2025 • 18:15 ET • 3 min read
Use Underdog Fantasy promo code "COVERS" to play $5, Get $100. - IMAGN IMAGES
Photo By - Use Underdog Fantasy promo code "COVERS" to play $5, Get $100. - IMAGN IMAGES

The Underdog Fantasy promo code COVERS delivers a $100 bonus when you make your first $5 entry, making Friday's Mavericks vs Thunder showdown the perfect opportunity to get started. Cooper Flagg and Dallas ride a three-game winning streak into Oklahoma City, where the Thunder have won 13 straight games and boast a 21-1 record. This matchup between two hot teams offers excellent betting opportunities through sportsbook promos like this $100 bonus available on December 5.

Play $5, Get $100
Code: COVERS

Underdog Fantasy promo code COVERS nets $100 bonus for Mavericks vs Thunder

The Underdog Fantasy promo code COVERS unlocks a $100 bonus credit when you place your first $5 entry into any contest. This welcome offer requires the promo code COVERS during registration and is available to new users who are at least 19 years old (21+ in Virginia). The bonus appears in your account within 72 hours and comes with a 1x wagering requirement that must be completed within 14 days.

For Friday's Mavericks vs Thunder game, you could enter a $5 pick'em contest predicting whether Cooper Flagg will exceed his scoring projection after averaging 27.0 points during Dallas' winning streak. If your picks hit and you win $20, you'll have $20 in winnings plus your $100 bonus to continue playing. Even if your initial entry doesn't win, you still receive the full $100 bonus to use on future contests within 60 days.

Key terms include account verification before withdrawals, bonus expiration after 60 days of non-use, and availability restrictions in Maryland, Michigan, Pennsylvania, and Ohio. The Thunder's 13-game winning streak and Flagg's recent emergence as the youngest player to score 20+ points in three straight games create compelling betting angles for this promotional offer.


Use the correct Underdog promo code for your state

Underdog Fantasy 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 Underdog Fantasy bonus for Mavericks vs Thunder

Claiming your $100 bonus through the Underdog Fantasy promo code COVERS takes just a few simple steps before Friday's game. Follow this process to secure your welcome offer:

  1. Download the Underdog Fantasy app and complete registration with your personal information and mobile number
  2. Verify your account using the one-time PIN sent via text message
  3. Make your first deposit of at least $5 and enter promo code COVERS when prompted
  4. Place a minimum $5 entry into any available contest, such as pick'em games for the Mavericks vs Thunder matchup
  5. Receive your $100 bonus credit automatically within 72 hours

Remember that no additional code is needed beyond the initial COVERS promo code during registration. You can immediately start building lineups or making picks on whether players like Cooper Flagg will exceed their projections against Oklahoma City's defense.


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Peter Clarke - Covers
Senior Editor

Peter Clarke is dedicated to keeping bettors informed about the biggest sports betting events, such as the Super Bowl and March Madness, and the best way to cash in on sportsbook promos. He's also always on top of the latest welcome offers from the biggest sportsbooks, so he can share the best deals and the most exciting games to use them on every day.

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