A Polymarket contract tied to the Chicago Cubs vs. Washington Nationals game saw a sharp repricing within an hour, with the Chicago Cubs option rising from 45.5% to 94.5%, according to monitoring by Catcher Predict. The move amounts to a 49 percentage-point swing in implied winning probability and underscores how prediction markets can rapidly absorb new information. Catcher Predict flagged the move as one to watch in light of relevant breaking news.