Rob Portman won with 58.0% of the vote (3,118,567 votes), ahead of Ted Strickland with 37.2% (1,996,908 votes).
The margin between the first two candidates was 20.9 percentage points (1,121,659 votes). The party margin (Republican share minus Democratic share) was a Republican lead of 20.9 points.
Compared with the previous comparable race in the same area, the party margin moved 26.9 points toward Republicans. The winning party changed.
5,374,164 votes were counted in this race, for 5 candidates or options.
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