Polymarket Promo Code COVERS: Get $20 Bonus for MLB Prediction Markets in Texas, California, and Florida

Luc LeBlanc - Betting Editor at Covers.com
Luc LeBlanc • Content Editor 3+ years betting experience
Updated: Apr 28, 2026 , 03:30 PM ET • 4 min read

Use Polymarket promo code COVERS for MLB Tuesday and claim a $20 bonus. Deposit $20, get $20 to trade on today's slate.

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

Tuesday's MLB slate is loaded with compelling matchups, making it the perfect time to join one of the best prediction market apps available. Enter Polymarket promo code COVERS by April 28 to unlock a $20 trading bonus for new users. From the Yankees taking on the Rangers to Trey Yesavage's season debut for the Red Sox against the Blue Jays, there is plenty of action to trade on this Tuesday.

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Get $20 With Code COVERS

Polymarket Promo Code Offer: Deposit $20, Get $20 for MLB Tuesday

New users who sign up with the Polymarket promo code COVERS can claim the platform's welcome offer, which gives you a $20 trading bonus when you deposit $20. This is a mobile-only offer, so desktop users who click the link will be directed to a waitlist instead. Polymarket's U.S. app is currently rolling out to users who registered for early access, so now is the time to get in.

Here are the key terms and conditions to keep in mind before claiming the offer:

  • Eligibility: Open to new users who meet the legal age requirement and reside in a jurisdiction where Polymarket is authorized to operate.
  • Minimum deposit: You must deposit $20 to unlock the $20 trading bonus.
  • Qualifying trade: You will likely need to place a real-money trade before bonus funds are credited to your account.
  • Wagering requirements: A 1x playthrough requirement may apply, meaning you must trade the full bonus amount once before withdrawing any winnings.
  • Market restrictions: Some bonus funds may only apply to specific markets, so reviewing the full terms is recommended.
  • Expiry: Bonus funds typically expire within seven to 30 days of being credited, so use them promptly.

For example, if you use your bonus to trade on the Cubs vs. Padres outcome and your position resolves in your favor, any winnings beyond the bonus amount may be withdrawable once wagering requirements are met. If your trade does not resolve in your favor, the bonus absorbs the loss up to its value, giving you a chance to trade again on another matchup from Tuesday's slate, such as the Diamondbacks vs. Brewers or the Tigers vs. Braves.

For a full breakdown of available offers, check out the best prediction market promos compared in one place.


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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 Bonus for MLB Tuesday on Polymarket

Getting started on Polymarket is straightforward. Follow these steps to claim your welcome bonus and start trading on Tuesday's MLB action:

  1. Register: Visit the Polymarket app via our link and click the "Sign Up" button. Enter invite code COVERS during registration. You can sign up using a Google account, any email address, or by linking a crypto wallet such as MetaMask, Trust Wallet, or Phantom. You will need to provide personal details including your date of birth, phone number, email address, and location to complete verification.
  2. Deposit funds: Click the deposit button, select your preferred payment method, and confirm a minimum deposit of $20 to qualify for the welcome bonus.
  3. Start trading: Browse available markets and select an outcome to trade on. With Tuesday's MLB slate featuring matchups like the Giants vs. Phillies, Cardinals vs. Pirates, and the Yankees vs. Rangers, there are plenty of options. Select your outcome, enter your trade amount, and confirm the transaction. You can monitor your position and cash out at any time.
  4. Withdraw earnings: When you are ready to withdraw, click "Portfolio," select "Withdraw," choose your preferred crypto withdrawal method, enter the amount, and confirm with your wallet address.

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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