Amy Acton holds an 80.5 percent implied probability on Polymarket because recent polling averages show her ahead by roughly four points among likely voters in this open-seat contest to replace term-limited Governor Mike DeWine. Forecasters including the Cook Political Report and Sabato’s Crystal Ball shifted the race to Lean Democratic after backlash against a late-October attack ad featuring Acton’s estranged mother, which Ramaswamy’s campaign defended but which damaged his standing with independents. Acton, a physician and former state health director, benefits from cross-aisle experience and emphasis on affordability, while Ramaswamy’s Trump endorsement and heavy advertising have not overcome voter concerns about negative tactics and his personal favorability. The November 3 election remains the resolution trigger, with any final shifts in turnout or late developments still able to alter the outcome.