The Polymarket invite code OREGON runs through July 2026, giving Oregon and Pacific Northwest traders an extended window to claim a $50 trading bonus on a $20 deposit. New users who register on Polymarket using the invite code OREGON start with a $70 total balance — and right now there is no shortage of markets to put it to work on. Tonight’s article covers three distinct categories where Polymarket is seeing serious trading volume: Monday night’s MLB West Coast slate, the 2026 Wimbledon winner markets with Jannik Sinner commanding a 59% probability on the men’s side, and trending political prediction markets including Michigan’s Senate primary and House seat projections heading into primary season.

News Source : https://www.oregonlive.com/betting/2026/06/polymarket-extends-50-invite-code-oregon-through-next-month.html