Polymarket offers new users a $20 bonus for MLB trading with code OREGON, coinciding with the Mariners-Dodgers series. The nationwide Polymarket Referral Code "OREGON" provides a $20 welcome promo for MLB, PGA, and all major sports odds in 2026.
Source: The Oregonian / OregonLive
Indexed: Tue, 28 Jul 2026 17:07:48 UTC
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