By activating Polymarket promo code STIFFS, new players can capitalize on a $20 bonus by making $10 in predictions. Start the registration process by clicking here.
This article clearly outlines how to claim the promotion, which allows you to get a $20 bonus after completing a qualifying $10 trade. Once your new account is successfully activated, this bonus can be used immediately to trade on Thursday’s active matchups, any other MLB game on the board this week, or even the latest NFL preseason prediction markets.
Polymarket Promo Code STIFFS: Trade $10, Get $20 Bonus
| Polymarket Promo Code | STIFFS |
|---|---|
| New User Offer | $20 bonus After a $10 Trade |
| Terms and Conditions | 18+ and Present in the US (Not Available in MI, NV) |
| Bonus Last Verified On | August 20, 2026 |
New Polymarket customers can take advantage of an exciting welcome offer that grants a $20 bonus to use on Thursday’s MLB slate and beyond. To unlock this $20 bonus, you simply need to register your account and complete a qualifying trade of at least $10. Once the trade qualifies, your bonus will be credited and ready for immediate use on baseball or upcoming NFL preseason action.
Please note that this promotion is strictly reserved for new Polymarket customers who are 18+ and physically located in an eligible Polymarket state. With your account activated and your qualifying trade completed, you will have plenty of options to explore across the upcoming MLB matchups, providing the perfect starting point to get involved in this week’s exciting prediction markets.
Thursday MLB Prediction Preview
| Matchup | Probabilities |
|---|---|
| NYY @ BAL | NYY 54% / BAL 47% |
| WSH @ TEX | WSH 40% / TEX 61% |
| LAA @ HOU | LAA 38% / HOU 63% |
The most tightly contested matchup features the New York Yankees (-123) visiting the Baltimore Orioles (+110) amid intense rivalry heat. The Yankees enter as favorites largely due to a dominant pitching staff boasting a 3.24 overall ERA, nearly a full run better than the Orioles’ 4.23 mark. The series has already seen significant drama, including Yankees infielder Jazz Chisholm Jr.’s heated exchange with an umpire over positioning on a double play, and Orioles pitcher Chris Bassitt criticizing MLB over a controversial foul ball call involving Alonso.
Meanwhile, the Houston Astros are comfortably favored over the Los Angeles Angels. Houston fields a superior offense with 580 runs and a .242 team batting average, though fans remain frustrated by inconsistent play. The Angels, struggling with just 512 runs and a .235 average, are also scuffling amidst a complete overhaul of their pitching coaching staff, which included the dismissal of pitching coach Mike Maddux.
How to Redeem Polymarket Promo Code STIFFS
Getting started and claiming your signup offer is a quick and straightforward process. Follow these simple steps to activate the promotion and begin trading on prediction markets:
- Create an Account: Register for a new account by providing standard personal information (such as your name, email address, and date of birth).
- Verify Your Identity: Submit the necessary proof of identification to ensure your account is fully verified and secure.
- Enter the Promo Code: During the registration process, make sure to enter the promo code STIFFS to opt into the offer.
- Complete a Qualifying Trade: Make a qualifying trade of at least $10 from your new account.
Once your qualifying trade is confirmed, your account will be fully activated for the $20 bonus and ready for you to explore the latest MLB and NFL preseason markets.
