Polymarket Expands OREGON Code to All Sports, Offering $20 Bonus on $10 Deposit

3 articles · Updated · OregonLive · Aug 15

$20 in bonus funds is now available to new U.S. Polymarket users who enter code OREGON and deposit $10, giving them $30 to trade across all active markets.
The update broadens the code from event-specific use to Saturday’s full sports slate, including every Aug. 15 MLB game and UFC 330 later that night.
Polymarket said the bonus is credited immediately after registration, identity verification and the qualifying deposit, and remains limited to new accounts.
UFC 330 prices were broadly aligned with Kalshi’s on shared markets, with Islam Makhachev around 76 cents on Polymarket versus 75% on Kalshi.
The OREGON code follows Polymarket’s earlier CUSE promotion for UFC 330, while the platform continues pitching peer-to-peer pricing and higher volume against Kalshi.