Polymarket Referral Code COVERS: Get $25 Bonus for White Sox vs. Guardians ALDS Prediction Markets

Christian Stringer - Prediction Markets Editor at Covers.com
Christian Stringer • Prediction Markets Editor 8+ years betting experience
Updated: Oct 8, 2026 , 03:20 PM ET • 4 min read

Use Polymarket referral code COVERS for a $25 trading bonus ahead of White Sox vs. Guardians ALDS Game 4 on Thursday.

Photo By - Get a $25 Bonus With Polymarket Referral Code COVERS.

Polymarket referral code COVERS unlocks a $25 trading bonus for new users ahead of White Sox vs. Guardians ALDS Game 4 on Thursday. A $10 deposit is required to activate the offer, and the code must be entered during sign-up.

As of Oct. 8, Polymarket remains one of the best prediction market apps for fans looking to trade on MLB postseason markets.

 Polymarket Logo 

Get $25 With Code COVERS


Polymarket referral code details

Polymarket New Customer Offer     
Deposit $10, Get $25 Bonus
Polymarket Referral Code COVERS
Minimum Deposit $10
Qualifying Transaction N/A
Eligibility New Customers, 18+. All states except Nevada
T&Cs

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.

Date Verified October 8
Info Confirmed By Christian Stringer

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How the Polymarket Referral Code Works for White Sox vs. Guardians

New users can claim this offer by entering the Polymarket referral code COVERS when registering for an account. A code is required for every new sign-up, and the $25 trading bonus is credited once the account meets the deposit and trading requirements. Those who already have an account may also look into the Polymarket referral code program, which operates separately and is detailed on the Polymarket referral code page.

Here is how it works using White Sox vs. Guardians ALDS Game 4 as an example trade:

  • Deposit at least $10 using a debit card, bank transfer, Apple Pay or crypto.
  • Enter COVERS during registration to unlock eligibility for the bonus.
  • Place a real-money trade on a Game 4 market between the White Sox and Guardians.
  • If the position resolves in your favor, the winnings are yours once the 1x playthrough is met.
  • If the position does not resolve in your favor, the $25 bonus remains available to apply toward future trades.

Terms require proof of ID, including a photo of a government-issued ID and a verification selfie, and the offer is unavailable to users in Nevada. Those comparing options across the market can also check a breakdown of the best prediction market promos before deciding where to trade on the ALDS.

Deposit $10 to get a $25 trading bonus on one of our Cleveland vs Chicago predictions on Polymarket

Polymarket offers a $25 trading bonus for new users who deposit $10, making it a strong entry point for Cleveland vs. Chicago picks in Game 4 of the ALDS.

  • Jon Metler backs Cleveland to win at 52%, arguing the Guardians are closer to a 55% true probability against Chicago, with Parker Messick holding a significant swing-and-miss edge over Erick Fedde, whose contact-dependent approach is a poor matchup against a Cleveland lineup that just scored nine runs in Game 3; a winning contract near 52 cents resolves at $1, netting roughly 48 cents per contract, while a losing trade under the Polymarket welcome offer would still yield the $25 bonus after depositing $10.
  • Josh Inglis targets the over 7.5 total runs at 53%, citing the White Sox's familiarity with Messick after tagging him for a loss in Game 1 and his workload of more than 190 innings this season, which should shorten his leash and expose a bullpen; a winning contract near 53 cents resolves at $1 for roughly 47 cents in profit per contract, while a losing trade would still be covered by the $25 bonus unlocked with a $10 deposit.

What Is the Polymarket Referral Code?

The Polymarket referral code is COVERS. Enter it at signup, deposit at least $10, and complete an eligible real-money trade to unlock a $25 trading bonus.

Use the correct code for your state

 Code Eligible States
  COVERS All states except Nevada

Claim the Polymarket Referral Code Before Game 4

Signing up takes just a few minutes and can be completed before first pitch of Thursday's White Sox vs. Guardians matchup.

  1. Click a verified link on this page to open Polymarket's registration page.
  2. Enter the Polymarket referral code COVERS and complete the ID verification steps.
  3. Deposit at least $10 using an accepted payment method.
  4. Place a qualifying trade on a White Sox vs. Guardians Game 4 market.
  5. Check this Polymarket review for full details before claiming your bonus.

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Christian Stringer - Covers
Prediction Markets Editor

As a seasoned editor at Covers, I have become a leading voice in North American prediction markets. Since joining in 2022, I have played a key role in managing, editing, and publishing commercial content that informs and engages bettors of all levels, with a particular focus on Kalshi, Polymarket, Novig, Stake, bet365, BetMGM, and Fanatics. Prior to Covers, I spent a decade as an award-winning account executive, collaborating with major brands like Rootz, 888, ComeOn!, EastLink, and GG Poker. My expertise extends to onboarding white labels, crafting online campaigns, and building  partnerships with tech providers and affiliates. 

Having personally reviewed over 50 prediction markets, sportsbooks, and DFS sites, I bring a sharp, user-focused perspective to the trading landscape and am committed to delivering insightful, high-quality content. Outside of work, I serve as the VP of an amateur athletics club, championing community engagement through sport.

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