California Polymarket Promo Code COVERS: Get $20 Bonus for Padres-Giants, MLB Prediction Markets Today

Luc LeBlanc - Betting Editor at Covers.com
Luc LeBlanc • Content Editor 3+ years betting experience
Updated: May 4, 2026 , 08:40 PM ET • 4 min read

Use Polymarket promo code COVERS for Padres vs. Giants to claim a $20 trading bonus. Deposit $20, get $20 on the prediction market app.

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

The Polymarket promo code COVERS unlocks a $20 trading bonus for new users ahead of Monday's NL West showdown between the San Diego Padres and San Francisco Giants. Enter the code during registration to claim the $20 welcome offer and start trading on one of the best prediction market apps available.

This offer is available as of May 4 for new mobile users in eligible U.S. states.

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Get $20 With Code COVERS

Polymarket Promo Code Offer: $20 Bonus for Padres vs. Giants

The Polymarket promo code COVERS activates a Deposit $20, Get $20 Trading Bonus for new users on the platform's U.S. mobile app. Unlike traditional sportsbook promotions, this offer requires a $20 deposit to unlock the $20 bonus, meaning you need to put real money in before the reward is credited to your account. The Polymarket U.S. app is currently rolling out to users who signed up for early access, and this offer is available to mobile users only -- desktop users who click the link will be directed to a waitlist.

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

  • Eligibility: New users only who meet the legal age requirement and reside in a jurisdiction where Polymarket is authorized to operate.
  • Minimum deposit: A $20 deposit is required to unlock the bonus.
  • Qualifying trade: You must place a real-money trade before bonus funds are credited.
  • Wagering requirements: A 1x playthrough requirement typically applies, meaning you must wager the bonus amount once before withdrawing winnings.
  • Market restrictions: Some markets or events may be excluded, so review the terms carefully.
  • Expiry: Bonus funds generally expire within seven to 30 days of being credited.

With the Padres sending Randy Vasquez to the mound against a Giants squad that has struggled offensively -- scoring just nine runs over a six-game road trip -- there is plenty of intrigue to trade on. If you trade on San Diego to win and Vasquez delivers, your position gains value and you can cash out for a profit. If San Francisco's Trevor McDonald surprises in his season debut and the Giants pull off the upset, your trade loses its value. Either way, the $20 bonus gives you extra capital to work with when the first pitch is thrown.

For a full breakdown of what is available, check out the best prediction market promos compared side by side.


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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 Welcome Bonus Before First Pitch

Getting started on Polymarket is straightforward. Follow these steps to claim your bonus and start trading on Padres vs. Giants:

  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 the process.
  2. Deposit funds: Click the deposit button, select your preferred payment method, and confirm a minimum $20 deposit to qualify for the welcome bonus.
  3. Start trading: Browse available markets and select your outcome for Padres vs. Giants or any other event on the platform, including sports, politics, economics, and pop culture. Enter your trade amount and confirm the transaction. You can monitor your position and cash out at any time, or wait for the market to resolve.
  4. Withdraw earnings: Navigate to your 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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