By using Polymarket promo code STIFFS during registration, new customers can snag a $50 welcome bonus. Set up a new account and make a cash deposit of at least $20 to unlock this bonus. Click here to start the registration process.
This welcome offer provides a strategic opportunity to build a portfolio ahead of Friday’s MLB action, giving users extra capital to trade on prediction markets for exciting matchups like the Chicago Cubs at the St. Louis Cardinals or the Philadelphia Phillies visiting the Los Angeles Dodgers. Once activated, the bonus funds can be applied to any sporting event listed on Polymarket, including Saturday’s Game 7 between the Spurs and Thunder.
Polymarket Promo Code STIFFS Delivers $50 Bonus
| Polymarket Promo Code | STIFFS |
|---|---|
| New User Offer | Deposit $20+, Get $50 Bonus |
| Terms and Conditions | 18+ and present in the US |
| Bonus Last Verified On | May 29, 2026 |
By signing up and making an initial deposit of at least $20, new users automatically unlock a $50 bonus. These bonus funds provide the perfect entry point for the upcoming MLB slate, whether you want to trade shares on the New York Yankees taking on the Oakland Athletics or the National League clash between the Chicago Cubs and St. Louis Cardinals. Additionally, the platform extends well beyond baseball; users can easily deploy their capital across active NHL and NBA prediction markets to diversify their portfolios.
Please note that this welcome offer carries specific stipulations. It is exclusively available to strictly new Polymarket customers who have never held an account on the platform. Furthermore, to claim the $50 bonus, users must be 18+ and physically located in an eligible state. Once these requirements are met and your $20 minimum deposit clears, your bonus will be ready to deploy on any market on the board, including the marquee matchup between the Philadelphia Phillies and Los Angeles Dodgers.
Friday Night’s Best MLB Matchups
| Matchup | Probability |
|---|---|
| NYY @ ATH | NYY 59% / ATH 42% |
| CHC @ STL | CHC 56% / STL 45% |
| PHI @ LAD | PHI 48% / LAD 53% |
When analyzing the board, the Yankees justify their status as the heaviest favorite against Oakland. New York brings a formidable 3.14 team ERA to the mound, comfortably outperforming the Athletics’ 4.36 ERA. Additionally, the Yankees’ offense holds a clear edge with a .770 OPS compared to Oakland’s .716.
Meanwhile, the Los Angeles Dodgers offer strong statistical value against the Philadelphia Phillies. The Dodgers boast an elite 3.11 team ERA and a potent .786 OPS at the plate. The Phillies lag behind in both categories, entering the contest with a 3.96 team ERA and a .682 OPS, making Los Angeles a sound choice for the upcoming slate.
How to Activate Polymarket Promo Code STIFFS
Getting started and claiming your offer in time for the upcoming slate of games, including the Chicago Cubs at St. Louis Cardinals or the Philadelphia Phillies at Los Angeles Dodgers, is a quick and straightforward process. Follow the steps below to claim your bonus:
- Create Your Account: Register for a new account by providing your standard personal information.
- Verify Your Identity: Submit the required proof of identification to securely verify your account details.
- Apply the Promo Code: Be sure to enter promo code STIFFS during the registration process.
- Make a Deposit: Complete a first-time deposit of at least $20 to officially activate the offer.
Once your initial deposit clears, your promo will be active, and you will be ready to trade on the New York Yankees at the Athletics or any other active prediction market.
