Catcher Predict: "US Open ATP: Alexander Zverev vs. Ben Shelton" "US Open ATP: Alexander Zverev vs. Ben Shelton Total Games in First Set Over/Under 8.5" Winning Probability Soars 18.5%

According to Catcher Predict monitoring, in the market prediction on Polymarket for the event "US Open ATP: Alexander Zverev vs. Ben Shelton," the sub-market "US Open ATP: Alexander Zverev vs. Ben Shelton Total Games in First Set Over/Under 8.5" saw a dramatic fluctuation in the win rate of the "Over" option, soaring from 71% an hour ago to the current 89.5% (a fluctuation of 18.5%). Please note the impact of relevant breaking news.