CD Copiapó secured a hard-fought 1-0 away victory against San Marcos de Arica in the CHI Liga de Ascenso on May 31, 2025. The match, which kicked off at 08:00, was decided by a solitary goal, showcasing Copiapó's defensive solidity and ability to grind out results on the road. The only goal of the game came in the second half, likely from a set-piece or a swift counter-attack, as Copiapó managed to withstand periods of pressure from the home side. San Marcos de Arica pushed for an equalizer but found the Copiapó defense and goalkeeper in stubborn form, unable to find a breakthrough. This result is crucial for Copiapó's league standing, earning them three valuable points in the tight promotion race, while leaving San Marcos de Arica ruing missed opportunities. The away team's coach praised his side's tactical discipline, while the home manager expressed frustration at his team's lack of cutting edge in the final third.