During their first two seasons, Maribor B was ineligible for promotion to the Slovenian Second League due to the rules of the Football Association of Slovenia which prevented reserve teams of the top division clubs to play in the Second League.

[5] Only players between the age of 17 and 23 had the right to play for Maribor B, with the exception of members of the first team, who would become eligible to play for the reserve team in case of a lengthy injury.

[6][7] Maribor B played their first match on 10 July 2014 on a neutral venue in Dokležovje, when they faced Bosnia and Herzegovina top division side Sloboda Tuzla in an international friendly match, which they lost 1–0.

[8][9] The team played their first official league match on 23 August 2014 against Mons Claudius in Rogatec and won 9–1.

[11] The team finished their inaugural season as the winners of the North Group in the Slovenian Third League, however, they were unable to promote due to the rules of the Football Association of Slovenia.