Union San Felipe and San Marcos de Arica shared the points in a 1-1 draw at the Estadio Municipal de San Felipe, a result that the Lemeister model had favoured the visitors to win, giving them a 44 per cent chance. A second-half red card for A. Barrios ultimately prevented San Marcos from holding onto their lead, forcing them to defend deep for the final half-hour. The data does not include possession, shots, expected goals or passing statistics, which limits the depth of the analysis, but the disciplinary imbalance is clear. San Marcos collected four cards, including one red, while Union San Felipe received just one yellow, a disparity that shaped the closing stages.
San Marcos de Arica took the lead in the 32nd minute through C. Melivilu Fuentes. The goal arrived with no assist, a straightforward finish that gave the visitors a deserved advantage. For much of the first half, San Marcos controlled the tempo, though the data does not indicate a significant shot count either way. The home side struggled to create clear openings, and the interval arrived with San Marcos firmly in the ascendancy. Without detailed statistics, it is difficult to assess whether the visitors dominated possession or created more chances, but the clean sheet until the 83rd minute suggests a disciplined defensive structure.
The match turned decisively in the 62nd minute when A. Barrios was shown a red card. That dismissal, for a second yellow or a straight red, left San Marcos with ten men for the remaining 28 minutes plus stoppage time. B. Tapia had already been booked in the 51st minute, and the visitors’ discipline frayed further when A. Galleguillos and J. Rivera were cautioned in the 71st and 73rd minutes respectively. For Union San Felipe, V. Perales also received a yellow card in the 73rd minute, a sign of the game’s growing physicality. The timing of the red card gave Union San Felipe a significant advantage, allowing them to press forward without the same defensive risk.
Union San Felipe capitalised on their numerical advantage in the 83rd minute. P. Munoz scored the equaliser, again with no assist recorded, dragging his side level with seven minutes of regular time to play. The home side had been patient in possession since Barrios’ red card, and the goal rewarded their persistence. San Marcos’ defence, which had been resolute for the first hour, finally cracked under sustained pressure. The equaliser came relatively late, leaving San Marcos little time to reorganise and seek a winner of their own.
In terms of discipline, a clear pattern emerged. San Marcos collected four cards in total, one of them red, while Union San Felipe had just one yellow. That imbalance heavily favoured the home side, who were able to commit fewer fouls and maintain their shape. The visitors’ indiscipline arguably cost them two points, as they had looked comfortable until the sending off. Without possession stats, it is not possible to confirm whether Union San Felipe dominated after the red card, but the late equaliser suggests they applied steady pressure.
The result leaves both sides with three points from five matches in the Primera B regular season. For San Marcos de Arica, the draw will feel like a missed opportunity given they were favourites according to the Lemeister model and held the lead for 51 minutes. Union San Felipe, though yet to find consistent form, will be relieved to have salvaged a point from a game that was slipping away. The fixture highlighted how a single flashpoint, in this case Barrios’ red card, can reshape a contest entirely. Both teams will need to address their defensive consistency if they are to climb the table in the coming weeks.