They were unopposed for the Democratic nomination[1] In Colorado, gubernatorial candidates pick their running mates and they are elected on the same ticket.

Libertarian Matthew Hess and his running mate Brandon Young,[8] Greens Bill Bartlett and Harry Hempy[9] and Independents Mike Dunafon, Mayor of Glendale,[10] and Jim Rundberg[11] also ran.

[18] Former Majority Leader of the Colorado Senate and nominee for secretary of state in 2006 Ken Gordon had also declared his candidacy in December 2012,[19] though it was unclear if he was continuing in the race after Neguse entered in June 2013.

Former U.S. Representative and former Assistant Secretary for Intergovernmental Affairs in the United States Department of Homeland Security Betsy Markey was the Democratic nominee.

[38] Pat Quinn, the outgoing mayor of Broomfield, had also declared his candidacy in June 2013,[39] but he withdrew from the race in November 2013.