Alabama - Governor Robert Bentley (R) looks likely to win reelection by a wide margin over Democrat-turned-Republican-turned-Democrat-again Parker Griffith.
Arkansas - Former Congressman Asa Hutchinson (R) holds a slim lead over former Congressman Mike Ross (D).
California - Governor Jerry Brown (D) is crushing former Assistant Secretary of the Treasury Neel Kashkari (R) in all polls.
Colorado - Governor John Hickenlooper (D) is fighting for his political life against Republican Bob Beauprez, a former Congressman. Four of the last five polls show the race either tied or have the candidates within a single percentage point of each other.
Connecticut - This race is a rematch of the 2010 election, in which Democrat Dannel Malloy narrowly defeated Republican Tom Foley. This time around, polls show Foley with a small but significant advantage.
Georgia - Polling has been all over the place in this one. Governor Nathan Deal (R) is leading by as many as nine points or losing by as many as eight points. His opponent, State Senator Jason Carter, is the grandson of former President Jimmy Carter.
Idaho - Republican Governor Butch Otter is almost certain to win a landslide victory over Democrat A.J. Balukoff, the Boise School Board President.
Illinois - Republican businessman Bruce Rauner has opened up a sizable lead against Democrat Governor Pat Quinn.
Iowa - Governor Terry Branstad (R) holds a double-digit lead over Democrat State Senator Jack Hatch.
Kansas - Republican Governor Sam Brownback is in serious peril of not just losing the election, but of losing it in landslide fashion. His opponent, Paul Davis, is the Minority Leader of the Kansas House of Representatives.
Maryland - Lieutenant Governor Anthony Brown (D) holds a solid lead over Republican businessman Larry Hogan.
Michigan - Governor Rick Snyder (R) has consistently held a small lead over Democrat Mark Schauer, a former Congressman.
Nebraska - Republican businessman Pete Ricketts has a significant lead over Democrat Chuck Hassebrook, a lifelong "rural advocate."
Nevada - Republican Governor Brian Sandoval leads former Economic Development Commissioner Robert Goodman (D) by more than 20 points.
New Mexico - Governor Susana Martinez (R) is ahead of Attorney General Gary King (D) by a sizable margin.
New York - Democrat Governor Andrew Cuomo leads Westchester County Executive Rob Astorino (R) by roughly 30 points.
Ohio - Republican Governor John Kasich has opened up a double-digit lead over Cuyahoga County Executive Ed FitzGerald (D).
Oklahoma - Republican Governor Mary Fallin holds a solid lead over Democrat Joe Dorman, a member of the Oklahoma House of Representatives.
Oregon - Democrat Governor John Kitzhaber is leading his Republican opponent, Dennis Richardson, by double-digits. Richardson is a member of the Oregon House of Representatives.
Pennsylvania - Republican Governor Tom Corbett has made the race closer over the last couple months, but he still trails Democrat businessman Tom Wolf by double-digits.
South Carolina - Republican Governor Nikki Haley has built a large lead over Democrat Vincent Sheheen, a member of the South Carolina Senate. This is a rematch of the 2010 gubernatorial election.
South Dakota - Republican Governor Dennis Daugaard is leading Democrat Susan Wismer by more than 30 points. Wismer is a member of the South Dakota House of Representatives.
Texas - Republican Attorney General Greg Abbott has maintained a sizable lead over Democrat State Senator Wendy Davis.
Wisconsin - Republican Governor Scott Walker is essentially tied with Democrat Mary Burke, a member of the Madison School Board. There are very few undecided voters left in this race, so turnout will be crucial in determining the winner.