Polymarket Invite Code COVERS: Get $20 Bonus for Cardinals vs. Tigers Sunday Night Baseball, MLB Predictions

Luc LeBlanc - Betting Editor at Covers.com
Luc LeBlanc • Content Editor 3+ years betting experience
Updated: Apr 5, 2026 , 03:45 PM ET • 4 min read

Get the Polymarket promo code COVERS for $20 bonus on Tigers vs Cardinals Sunday Night Baseball predictions. Claim your welcome offer today.

Photo By - Get A $20 Bonus With Our Polymarket Invite Code.

The Detroit Tigers face the St. Louis Cardinals in Sunday Night Baseball at Comerica Park, though fans will miss Justin Verlander's anticipated return due to injury. New users can claim a Polymarket invite code offer worth $20 in bonus funds by entering promo code COVERS during registration.

This Sunday, April 5 welcome offer allows you to trade on baseball outcomes and other prediction markets through one of the best prediction market apps available to U.S. users.

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Get $20 With Code COVERS

Polymarket Invite Code Details for Tigers vs Cardinals

The Polymarket promo code COVERS unlocks a deposit match bonus worth $20 for new users who want to trade on Sunday's Tigers-Cardinals matchup. After depositing $20, you receive an additional $20 in trading credits to use across Polymarket's extensive selection of prediction markets. This offer applies specifically to mobile app users, as desktop visitors join a waitlist for future access.

Key terms include a minimum $20 deposit requirement and 1x playthrough conditions before withdrawing winnings. For example, if you trade $20 on the Tigers to sweep the Cardinals and win, you can withdraw your profits after meeting the wagering requirement. Conversely, losing trades still count toward fulfilling bonus conditions. The bonus funds typically expire within 30 days of activation, and markets may include restrictions on certain events.

Compare this offer with other best prediction market promos to maximize your trading potential across multiple platforms.


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Use the correct Polymarket promo code for your state

  Promo Code Eligible States
  COVERS All states + DC, excluding NV

How to Claim Your $20 Polymarket Bonus

Follow these steps to claim your Polymarket welcome offer for Tigers vs Cardinals predictions:

  1. Download the Polymarket mobile app and click "Sign Up"
  2. Enter promo code COVERS during registration
  3. Complete account verification with your personal information
  4. Make your first deposit of $20 or more
  5. Receive $20 in bonus trading credits automatically
  6. Place trades on Sunday's baseball game or other available markets

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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