Real Potosí defeated Primero Mayo 2-0 in the first leg of the Nacional B semi-finals, a result that overturned the pre-match expectations of the Lemeister model. The model had favoured Primero Mayo, giving them a 38 per cent win probability and projecting a 1-0 away victory. Instead, the home side claimed a clean-sheet win that positions them strongly for the return fixture.
The scoring was opened in the 23rd minute, when Real Potosí took the lead. The second goal arrived in the 67th minute, doubling the advantage and effectively sealing the result. With no assists or goal types listed in the data, it is not possible to determine how either goal was created or finished. Neither side made a substitution, meaning both teams fielded their starting line-ups for the full 90 minutes.
The statistical breakdown of the match is absent from the data, leaving a gap in the analysis of possession, shots, expected goals and passing accuracy. Without these figures, it is not possible to assess whether Real Potosí dominated territorially or created a higher volume of chances. However, the final scoreline suggests the home side were clinical when opportunities arose, scoring twice while keeping a clean sheet. The absence of any cards indicates a disciplined contest, with neither team resorting to cynical fouls or incurring yellow or red cards. The clean sheet was therefore achieved without the need for aggressive defending, although the identity of the goalkeeper and the performance of the back line cannot be assessed from the data.
The match ratings array is also empty, meaning no individual player can be identified as the standout performer or as having an off day. This absence of ratings prevents any deeper analysis of which players drove the victory or struggled to impose themselves. The lack of player-specific data means the report cannot highlight a man of the match or note any positional battles won or lost. The result therefore stands as a team achievement, with the collective performance of Real Potosí proving sufficient to secure the two-goal lead.
The result gives Real Potosí a commanding position in the two-legged semi-final tie. They will travel to face Primero Mayo in the second leg with a two-goal cushion, meaning the home side can afford to lose by a single goal and still progress. For Primero Mayo, the challenge is clear: they must overturn the deficit to keep their hopes of reaching the final alive. They will need to score at least twice while keeping a clean sheet, or win by a margin of three goals if they concede. The Lemeister model will revise its projections for the return fixture based on this outcome, but for now, Real Potosí hold the advantage. The second leg promises to test whether Primero Mayo can recover from the disappointment of the first encounter, or whether Real Potosí will confirm their place in the final with a disciplined away performance. The competition context remains wide open, with both sides still in contention for the title.
