Eight of the 11 candidates to jump in the race before March are still on the campaign trail.
Three states have no living former members of the upper legislative chamber while six states have just one.
Democrats have never nominated a westerner for their presidential or VP slots across the 42 cycles since the first western state voted in a presidential election.
Winning candidates in four states – two Democrats and two Republicans – received the largest support recorded by their party in a race for governor since statehood.
Fourteen states will be represented by a single party on Capitol Hill – seven Democratic and seven Republican; one party controls all but one seat in 13 other states.
Democrats and Republicans in six states have still never nominated a woman to its top executive office.
Democrats in four states have never won three-fifths of the gubernatorial vote in electoral history – that could change in two states in 2018.
There is a good chance as many as six states could have two female major party nominees for the office – doubling the previous record for an election cycle.
Six women under 40 are currently seeking major party gubernatorial nominations this year.
By contrast, one state’s voters have given each of its last 11 elected governors at least two terms in office dating back to the mid-1920s.