California Polymarket Promo Code COVERS: Get $20 Bonus for Thunder vs. Lakers, NBA Prediction Markets

Luc LeBlanc - Betting Editor at Covers.com
Luc LeBlanc • Content Editor 3+ years betting experience
Updated: May 11, 2026 , 07:40 PM ET • 4 min read

Use Polymarket promo code COVERS for Lakers vs. Thunder Game 4 and claim a $20 trading bonus on the best prediction market apps.

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

The Oklahoma City Thunder look to complete a sweep of the Los Angeles Lakers in Game 4 of the Western Conference semifinals, and there is no better time to get in on the action with a Polymarket promo code. New users can claim a $20 trading bonus by entering code COVERS at registration, making it one of the top offers available on the best prediction market apps as of May 11.

The Thunder have won all seven playoff games by at least 18 points, and with the Lakers facing elimination, this is a matchup worth trading on.

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Get $20 With Code COVERS

Polymarket Promo Code Offer: Claim Your $20 Trading Bonus

The Polymarket promo code offer is straightforward: deposit $20 and receive a $20 trading bonus credited to your account. This is a mobile-exclusive offer, so desktop users who click the link will be directed to a waitlist instead. To unlock the bonus, you must enter code COVERS during the registration process. Here is a breakdown of the key terms to keep in mind:

  • Eligibility: New users only who meet the legal age requirement and reside in a jurisdiction where Polymarket is authorized to operate.
  • Minimum deposit: $20 is required to unlock the bonus.
  • Qualifying trade: You must place at least one real-money trade before bonus funds are credited.
  • Wagering requirements: A 1x playthrough on the bonus amount is typically required before withdrawing winnings.
  • Expiry: Bonus funds generally must be used within seven to 30 days before they expire.
  • Market restrictions: Some markets or events may not qualify, so reviewing the full terms is recommended.

For example, if you trade on whether the Thunder will complete the sweep in Game 4 and your position resolves in your favor, any winnings from bonus funds would be subject to the playthrough requirement before withdrawal. If your trade does not resolve in your favor, the bonus gives you additional funds to continue trading on other markets.

For a full comparison of available offers, check out the best prediction market promos available right now.


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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 Polymarket Bonus for Lakers vs. Thunder Game 4

Getting started on Polymarket is simple. Follow these steps to claim your bonus ahead of Monday's elimination game:

  1. Register: Visit the Polymarket app via the link on this page, tap the Sign Up button, and enter invite code COVERS to unlock the welcome offer. 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, and location to complete registration.
  2. Deposit funds: Tap the deposit button, select your preferred payment method, and confirm a minimum deposit of $20 to qualify for the trading bonus.
  3. Start trading: Browse available markets, including NBA playoff outcomes, and select your preferred position on the Lakers vs. Thunder Game 4 or any other event. Confirm your trade amount and monitor your position, with the option to cash out at any time before resolution.
  4. Withdraw earnings: Navigate to your Portfolio, select Withdraw, choose your preferred crypto withdrawal method, enter the amount and your wallet address, and confirm the transaction.

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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