Polymarket is offering $25 trading bonuses to new U.S. users through limited-time promo codes that require a $10 first deposit. The Oregonian reports that the code “OREGON” is extended and tied to live odds coverage for MLB postseason matchups, including Rays–Yankees ALDS Game 3. The promotion is presented as a way to unlock additional trading value on eligible accounts.
Other coverage highlights a separate offer. The New York Post cites a promo code “NYPMAX1” that likewise provides a $25 bonus after a $10 deposit, connected to Guardians vs. White Sox odds for an MLB Game 3. While the games named differ by outlet, both reports describe the same promotional structure: a referral-style code, a $10 qualifying deposit, and a $25 bonus for new Polymarket US accounts.
Both sources frame the offers as timed to specific live MLB playoff game windows and as availability-limited incentives for new users.