Polymarket Rolls Out $50 CUSE Invite Code for U.S. MLB Markets

Overview

• Polymarket launched the CUSE invite code for eligible new U.S. accounts in specified states, giving a $50 trading bonus after a required $20 deposit and entry of the code during registration with identity verification required.
• The promotion is attached to a 15-game MLB board on Polymarket and is already adding visible liquidity and shifting prices, with examples such as a Mets win contract trading near 35 cents.
• Polymarket’s peer-to-peer matching means credited funds trade directly against other users instead of a house, so bonus-funded accounts can move market prices immediately.
• The reach and scale of the promotion depend on strict enforcement of residency and ID checks plus bonus terms, and the platform’s long-term liquidity will hinge on whether new users keep trading after credits are spent.
• Reporters flagged consumer-protection issues such as rapid losses, expiration or withdrawal limits on credits, and regulatory boundaries, while competitors like Kalshi continue running smaller, state-targeted referral bonuses.