The Polymarket referral code CUSE is live ahead of Tuesday night’s MLB slate on June 16th, 2026, offering new users in New York, Illinois, Florida, and California a $50 trading bonus on their first $20 deposit. Registering with the Polymarket referral code CUSE unlocks immediate access to Polymark et’s full prediction market suite — including the most actively traded MLB markets running tonight across the country. ...read more read less