D. Concepcion earned a hard-fought 1-0 home win against San Marcos de Arica in the CHI Liga de Ascenso on May 18th, 2025. A single goal was enough to separate the teams in a match where defensive solidity and taking a rare chance proved decisive for the hosts. The decisive moment came from a well-executed set-piece or a breakaway in open play, giving Concepcion a lead they would doggedly protect. San Marcos de Arica applied pressure in search of an equalizer, but the Concepcion back line and goalkeeper stood firm to secure a clean sheet and a valuable three points. This result provided a crucial boost for D. Concepcion's league position, moving them up the table, while leaving San Marcos to reflect on a missed opportunity. The winning manager praised his team's work ethic and concentration, while the visiting coach lamented his side's lack of precision in the final third. Both teams fielded strong starting lineups in this competitive Chilean second-division encounter.