Polymarket Promo Code COVERS: Get $20 Bonus for MLB & WNBA Prediction Markets

Luc LeBlanc - Betting Editor at Covers.com
Luc LeBlanc • Content Editor 3+ years betting experience
Updated: Aug 18, 2026 , 12:45 PM ET • 4 min read

Get $20 trading bonus with Polymarket promo code COVERS on Aug. 18. Deposit $10 to claim.

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

Tuesday, Aug. 18 brings a full slate of baseball and basketball action, and new traders can capitalize on the action with a Polymarket promo code welcome offer. The $20 trading bonus requires a best prediction market apps account and a deposit to unlock.

You'll need to enter promo code COVERS during registration to claim the offer on Aug. 18.

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Get $20 With Code COVERS

18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See https://polymarket.com/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.

Polymarket Promo Code COVERS: Claim our Exclusive $20 Bonus Today
Exclusive Polymarket New User Offer Deposit $10, Get $20 Bonus
Polymarket promo code COVERS
T&Cs 18+ (Must be physically present in the United States)
Date Verified August 18

How the Polymarket Promo Code Welcome Offer Works

The Polymarket promo code offer grants new traders $20 in bonus funds after depositing $10. You must enter COVERS at signup to activate the promotion. This bonus applies to all eligible states except Nevada, and you'll need to provide valid identification during registration.

Here are the key terms and conditions:

  • Available in all U.S. states except Nevada
  • Minimum deposit of $10 required to claim the bonus
  • Valid photo ID and selfie verification required
  • Must be physically located in an eligible state to trade

Once your account is funded, you can trade on Tuesday's matchups. If you predict correctly on a Yankees-Orioles outcome or any other game on the slate, your winnings are added to your account balance. If your trade doesn't go as expected, you've only risked your initial deposit.

Comparing best prediction market promos shows how this offer stacks up among leading platforms.


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Use the correct Polymarket promo code for your state

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

Claiming Your Bonus for Tuesday's MLB and WNBA Action

Getting started with your welcome offer takes just a few minutes. Follow these steps to sign up and begin trading on Tuesday's games:

  1. Visit Polymarket's sign-up page and enter promo code COVERS during registration
  2. Provide your personal information, including date of birth, phone number, and location
  3. Submit a valid photo ID and accompanying selfie for verification
  4. Click the "Deposit Cash" button in your wallet and select your preferred payment method
  5. Deposit $10 to activate the $20 bonus
  6. Begin trading on Tuesday's slate of games

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.

18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See Terms of Use | Polymarket  for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.

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Luc LeBlanc
Content Editor

Luc LeBlanc has worked in sports media for nearly half a decade, blending his analytical approach, knack for pattern recognition, and a unique, transparent writing style to present readers with the best and most accurate information.

Safe and responsible sports betting never comes from blindly following picks or projections, but rather from better informing oneself through digesting trusted, transparent, and reliable information.

He holds a Geography degree (BSc) from Saint Mary's University. His love for maps and his science-oriented thought processes have seamlessly translated to how he approaches his work today.

Whether it's the NHL, ATP/WTA Tours, MLB, or NFL, he can always be trusted to deliver valuable information in an accessible manner and will never push a narrative without good reason.

Prior to joining Covers, his work could be found across numerous publications, such as The Hockey Writers, FanSided, and Oddspedia. 

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