2018Final results
2018 election for Ohio Senate District 1
Ohio State Senate · Ohio
Rob McColley (R) won with 73.3% of the vote, defeating Adam Papin (D) by 46.5 points.
Rob McColleyRepublican · winner
73.3%89,810
Adam PapinDemocrat
26.7%32,765
122,575 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET