In Peru's 2026 Liga 1, the team with the most clean sheets remains tightly contested after the Apertura and eight Clausura rounds because multiple sides post comparable defensive records without a dominant leader. Alianza Lima leads the aggregate table with the stingiest defense overall, supported by goalkeeper Alejandro Duarte's strong shutout totals, while Sport Boys, Deportivo Garcilaso, and Universitario maintain competitive clean-sheet percentages through disciplined backlines and solid goalkeeping. Recent Clausura results, including low-scoring draws and narrow wins, have kept tallies bunched, and the split-tournament format plus remaining fixtures—such as the Alianza Lima-Universitario clásico—leave ample opportunity for shifts in form, home/away splits, or injuries to alter the final count among the closely matched group.