Catcher Predict: "US Open WTA: Aryna Sabalenka vs Elena Rybakina" "US Open WTA: Aryna Sabalenka vs Elena Rybakina First Set Total Games O/U 8.5" Win rate plummeted to 28.5%

According to Catcher Predict monitoring, in the market prediction on Polymarket for the event "US Open WTA: Aryna Sabalenka vs Elena Rybakina," the "Over" option for the sub-market "US Open WTA: Aryna Sabalenka vs Elena Rybakina Total Games in First Set O/U 8.5" has experienced a sharp fluctuation in winning probability, dropping from 78.5% an hour ago to the current 50% (a fluctuation of 28.5%). Please note the impact of related breaking news.