2017 Primera B de Chile
The 2017 Primera B de Chile, known as the 2017 Campeonato de Transición Loto for sponsorship purposes, was the 64th season of Chile's second-tier football league. The competition began on 29 July 2017. Standings. <onlyinclude></onlyinclude> Promotion playoff. The promotion playoff was played by three teams: Santiago Wanderers, as the last-placed in the Primera División relegation table, 2016–17 Primera B runners-up San Marcos de Arica, and 2017 Primera B champions Unión La Calera. The two Primera B teams played each other with the winner qualifying to the final against the  Primera División team for promotion to the top flight for the 2018 season. Relegation. Relegation was determined at the end of the season by computing an average of the number of points earned per game over the two most recent seasons: 2016–17 and 2017. The team with the lowest average was relegated to the Segunda División Profesional.