Cobreloa overcame Puerto Montt, 2x1, on Monday, in a game relating to mathweek 23. In this competition, Rodrigo Meléndez's team came from a defeat, and Fernando Vergara's team came from a win.
The first goal of the game was scored by Sebastián Romero, in the 21st minute.
After 66 minutes, Cristián López struck for Puerto Montt. Pablo Parra scored the winner with 86 minutes on the clock.
After the result Cobreloa are 4th in the table, with 38 points, while Puerto Montt sit 15th place, with 25 points. In their next fixture, Calama's team will play away against Unión San Felipe. Meanwhile, Puerto Montt's team will host Copiapó.