O'Higgins claimed a narrow 1-0 home victory over Union La Calera in the Chilean Liga de Primera on August 4, 2025. The match was decided by a single goal in a contest where chances were scarce and defensive organization prevailed. The decisive moment came in the 70th minute, when O'Higgins broke the deadlock following a swift counter-attack that was finished calmly past the La Calera goalkeeper. The visitors pushed for an equalizer in the final twenty minutes, applying pressure and sending more players forward, but they were unable to penetrate a resilient O'Higgins backline. The three points are invaluable for O'Higgins in the tightly contested Chilean top flight, helping them climb the league table with a hard-earned clean sheet.