The Arizona Bowl, new for 2015, had tie-ins with
Conference USA (C-USA) and the
Mountain West Conference. If one of those conferences did not have enough
bowl-eligible teams, the
Sun Belt Conference was an alternative. At the end of the regular season, Mountain West had seven bowl-eligible teams and six guaranteed spots, leaving the placement of individual teams uncertain. When neither C-USA or Sun Belt were able to provide a team to the Arizona Bowl, a matchup between two Mountain West teams was the result, marking the first time since the
1979 Orange Bowl that a non-championship bowl game was played between members of the same conference. The two Mountain West teams selected for the Arizona Bowl had not met in the regular season, as they were in opposite divisions, and were not in the rotation to play each other during the season.
Nevada Wolf Pack The Nevada Wolf Pack finished the regular season 6–6 (4–4 in conference) under third-year head coach
Brian Polian, becoming bowl-eligible after defeating
San Jose State. This game was Nevada's tenth bowl appearance in eleven seasons.
Colorado State Rams The Colorado State Rams finished the regular season 7–5 (5–3 in conference) under first-year head coach
Mike Bobo, becoming bowl-eligible for the third straight year after defeating
New Mexico. ==Game summary==