2018 Primera B de Chile
The 2018 Primera B de Chile, known as the 2018 Campeonato Loto for sponsorship purposes, was the 65th season of Chile's second-tier football league. The competition began on 2 February 2018 and ended on 1 December 2018. Coquimbo Unido were the champions.
Format
The tournament was played by 16 teams which played each other twice, for a total of 30 matches. The team that finished in first place at the end of the round-robin tournament earned promotion to the Campeonato Nacional for the 2019 season. Meanwhile, the teams finishing from second to sixth place played in a playoff tournament for the second promotion berth, with the season runners-up having a bye to the final. The team finishing in bottom place at the end of the season was relegated to the Segunda División Profesional.Teams
Stadia and locations
| Club | City | Stadium | Capacity |
| Barnechea | Santiago | Municipal de Lo Barnechea | 3,000 |
| Cobreloa | Calama | Zorros del Desierto | 12,346 |
| Cobresal | El Salvador | El Cobre | 12,000 |
| Coquimbo Unido | Coquimbo | Municipal Francisco Sánchez Rumoroso | 18,750 |
| Deportes Copiapó | Copiapó | Luis Valenzuela Hermosilla | 8,000 |
| Deportes La Serena | La Serena | La Portada | 18,243 |
| Deportes Melipilla | Melipilla | Municipal Roberto Bravo Santibáñez | 6,000 |
| Deportes Puerto Montt | Puerto Montt | Chinquihue | 10,000 |
| Deportes Valdivia | Valdivia | Parque Municipal | 5,397 |
| Magallanes | Santiago | Municipal de San Bernardo | 3,500 |
| Ñublense | Chillán | Municipal Nelson Oyarzún Arenas | 12,000 |
| Rangers | Talca | Fiscal de Talca | 8,200 |
| San Marcos de Arica | Arica | Carlos Dittborn | 9,746 |
| Santiago Morning | Santiago | Municipal de La Pintana | 6,000 |
| Santiago Wanderers | Valparaíso | Elías Figueroa Brander | 20,575 |
| Unión San Felipe | San Felipe | Municipal de San Felipe | 12,000 |
Standings
Results
Promotion playoff
Quarterfinals
----Santiago Wanderers won 6–1 on aggregate.
Cobresal won 4–3 on aggregate.
Semifinals
----Cobresal won 4–3 on aggregate.
Finals
----Cobresal won 4–3 on aggregate and earned promotion to the Primera División.
Top goalscorers
| Rank | Name | Club | Goals |
| 1 |  Rodrigo Holgado | Coquimbo Unido | 18 |
| 2 | Lucas Simón | Cobreloa | 17 |
| 3 | Gustavo Lanaro | Deportes Valdivia | 13 |
| 4 |  Ever Cantero | Cobresal | 12 |
| 4 | Enzo Gutiérrez | Santiago Wanderers | 12 |
| 4 |  Miguel Orellana | Barnechea | 12 |
| 7 |  Reiner Castro | Santiago Wanderers | 10 |
| 7 | Germán Estigarribia | Deportes Copiapó | 10 |
| 7 | Gonzalo Sosa | Magallanes | 10 |
| 10 | Óscar Ortega | Santiago Morning | 8 |
| 10 | Stefan Pino | Deportes Melipilla | 8 |
| 10 | Mathias Pinto | Deportes Melipilla | 8 |
Source: