California Polymarket Promo Code COVERS: Get $20 Bonus for Mariners-Padres, MLB Prediction Markets on Thursday, April 16

Luc LeBlanc - Betting Editor at Covers.com
Luc LeBlanc • Content Editor 3+ years betting experience
Updated: Apr 16, 2026 , 05:40 PM ET • 4 min read

Get a Polymarket promo code COVERS for $20 bonus on Mariners vs Padres predictions. Claim your trading bonus today!

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

The Polymarket promo code COVERS offers new users a $20 trading bonus perfect for wagering on Thursday's Mariners vs. Padres matchup. San Diego enters this game riding a seven-game winning streak after their dramatic five-run ninth-inning comeback victory Wednesday night.

With Walker Buehler taking the mound for the Padres against Seattle's Luis Castillo, this April 16 showdown presents an excellent opportunity to explore one of the best prediction market apps available.

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Get $20 With Code COVERS

$20 Polymarket Promo Code Bonus for Mariners vs. Padres

The Polymarket promo code COVERS unlocks a deposit match bonus worth $20 for new users. This welcome offer requires a minimum $20 deposit to activate the bonus funds, which are then available for trading on various prediction markets including tonight's baseball game. Unlike traditional sportsbook promotions, Polymarket operates as a prediction market platform where users can trade on event outcomes.

For the Mariners vs. Padres game, you could trade on outcomes like which team wins, total runs scored, or individual player performances. If you deposit $20 and receive the $20 bonus, you'll have $40 in total trading power. Should you correctly predict the Padres continue their winning streak, your successful trades could yield profits based on market odds. Conversely, if you back Seattle and they lose, you would lose your stake on that particular trade.

Key terms include eligibility for new users in authorized jurisdictions, the mandatory COVERS promo code during registration, and typical wagering requirements that may apply to bonus funds. Most prediction market bonuses must be used within 30 days of activation.

Compare this offer with other best prediction market promos to ensure you're getting maximum value.


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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 Trading Bonus

Claiming your Polymarket bonus is straightforward with these steps:

  1. Register: Visit Polymarket through our link, click 'Sign Up', and enter promo code COVERS during registration
  2. Verify Account: Complete email verification and provide required personal information including date of birth and location
  3. Make Deposit: Add at least $20 to your account using available payment methods to trigger the bonus
  4. Start Trading: Place your first trade on the Mariners vs. Padres game or other available markets to activate bonus funds

The mobile app is currently rolling out to users who signed up for early access, making this an ideal time to secure your trading bonus for tonight's game.


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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