Deportes Copiapo and Union San Felipe played out a goalless draw at the Estadio Luis Valenzuela Hermosilla, a result that defied the Lemeister model's pre-match projection. The model had given the home side a 39 per cent chance of victory and forecast a 1-0 win, but a fiercely contested match in Copiapó was defined by defensive discipline, midfield congestion, and a remarkable disciplinary record of ten yellow cards and one red card. Without any goals in the data, the narrative of the match is shaped entirely by the high number of cards and the absence of attacking output, pointing to a game where neither side could break through a well-organised defence.
The first half offered little by way of clear-cut chances, with neither team able to find a rhythm in the final third. Deportes Copiapo, despite being the slight favourites according to the Lemeister model, struggled to assert sustained territorial dominance. The first card arrived in the 22nd minute, when I. Rozas was booked for the home side, signalling the fractious nature of the contest. Union San Felipe's J. Ferrari followed him into the book just before the interval in the 45th minute, as the away side looked to disrupt Copiapo's build-up play. The absence of shots on target or expected goals data suggests both defences were well organised, with midfield battles taking precedence over attacking invention.
The second half continued in a similar vein, with both defences holding firm. P. Navarro of Union San Felipe was cautioned in the 60th minute, and the home side then accumulated four bookings in quick succession after the 80th minute. C. Salomon, F. Torres, J. Fierro, and E. Fernandez all went into the book for Deportes Copiapo, with I. Rozas receiving a second yellow card in the 89th minute to complete a red card, reducing the hosts to ten men for the closing stages. Despite the numerical disadvantage, Deportes Copiapo managed to hold on for the point. B. Acosta received a yellow card in the 91st minute, and Union San Felipe's J. Cordova was booked in the 95th minute, while E. Fernandez of the home side was cautioned in the 97th minute as the match concluded in stoppage time.
The sheer volume of cards, particularly the eight shown to Deportes Copiapo players, reflected the home side's desperation and the physical nature of the contest. Without any goals or detailed statistics, the match rating data is absent, but the disciplinary record alone indicates that both teams' attackers rarely found space in the final third. The Lemeister model's projection of a 1-0 home win implies that such an outcome was plausible given the teams' typical attacking profiles, but the defensive solidity on display prevented any breakthrough. For Deportes Copiapo, the draw will feel like a missed opportunity given their pre-match billing, but avoiding defeat while down to ten men in stoppage time is not a disastrous outcome.
Union San Felipe, who were 30 per cent outsiders in the Lemeister model, will be satisfied with a hard-earned point on the road. The result keeps both sides in mid-table in the Primera B Regular Season, where such low-scoring stalemates can prove pivotal in the congested race for promotion. The lack of goals and the high card count suggest both teams prioritised defensive solidity over risk-taking, a pragmatic approach that yielded a point apiece but little entertainment. The Lemeister model's read of a close contest proved accurate, even if the goalless outcome was not the most likely projection.
