Register with Polymarket promo code STIFFS and take advantage of a $20 sign-up bonus ahead of Tuesday’s MLB games. Click here to start the registration process.
Simply set up an account and trade at least $10 to get $20 in bonuses. The bonuses can then be used to trade shares on any upcoming matchups, including the New York Yankees at Baltimore Orioles, Chicago White Sox at Chicago Cubs, and Los Angeles Dodgers at Colorado Rockies, as well as any MLB market on Polymarket
Polymarket Promo Code STIFFS Unlocks $20 Bonus
| Polymarket Promo Code | STIFFS |
|---|---|
| New User Offer | Trade $10, get $20 in bonuses |
| Terms and Conditions | 18+ and Present in the US |
| Bonus Last Verified On | August 18, 2026 |
If you are looking to get in on the upcoming MLB action, the latest Polymarket promo code provides the perfect opportunity. Exclusive to new Polymarket customers, this promotion lets eligible users trade at least $10 to receive $20 in bonuses. Whether you want to back the Los Angeles Dodgers, target the cross-town rivalry between the Chicago White Sox and Chicago Cubs, or take a position on the New York Yankees taking on the Baltimore Orioles, this offer gives you extra flexibility for your first trades.
Claiming the offer is straightforward. After creating an eligible new account, trade at least $10 to unlock the $20 in bonuses. Please note that this offer is exclusively available for new Polymarket customers. Additionally, all users must be 18+ and physically located in an eligible Polymarket state to participate.
Tuesday MLB Options
| Matchup | Probability |
|---|---|
| NYY @ BAL | NYY 52% / BAL 49% |
| CHW @ CHC | CHW 39% / CHC 62% |
| LAD @ COL | LAD 64% / COL 37% |
When looking for the best trading value, the narrowest probability margin belongs to the matchup between the Yankees and the Orioles. New York enters this divisional clash leaning heavily on its pitching staff, which has a 3.26 team ERA, while quietly stacking recent wins, including an extra-inning victory over the Toronto Blue Jays. Baltimore, carrying a much higher 4.24 team ERA, will need to rely on its bats to close the gap. The Orioles hold a slight offensive edge on paper, generating a .720 team OPS compared to the Yankees’ .716 OPS.
The Baltimore lineup features Gunnar Henderson heating up and recently signed free agent Pete Alonso batting leadoff for the first time in his career. This follows a front-office shakeup that sent star catcher Adley Rutschman to the Boston Red Sox for prospect Harold Rivas—a move publicly supported by pitcher Chris Bassitt as being in the team’s best long-term interest.
How to Redeem Polymarket Promo Code WTOP
Getting started and claiming your welcome offer is a quick and straightforward process. Follow these steps to get in on the upcoming MLB action:
- Register Your Account: Create a new account by providing standard personal information (such as your name, email, and date of birth).
- Verify Your Identity: Submit proof of identification as prompted to secure and verify your new account.
- Enter the Promo Code: Be sure to use promo code STIFFS during the registration process.
- Make Your Qualifying Trade: Trade at least $10 to officially activate the offer and receive $20 in bonuses.
Once your qualifying trade is complete, you will be all set to start exploring the board and trading shares on the upcoming matchups.
