The "Over" position in Polymarket's "Chicago White Sox vs. Detroit Tigers" prediction market saw a sharp move within an hour, with its winning probability climbing from 55.5% to 74.5%, a 19% fluctuation. Catcher Predict, a market-monitoring service, flagged the jump in the "O/U 7.5" sub-market and cautioned that related breaking news may be affecting pricing. In prediction markets, probability shifts typically reflect traders rapidly incorporating new information into the odds.