Estadio del San Isidro Club

Estadio del San Isidro Club sits on land once held by Manuel Aguirre. The standard concrete terraces rise steeply, their curves painted a faded yellow, while two tall light towers bracket the pitch. The main stand retains a roofed section bought from the defunct Club Banco Nación in 1912.

Locals call the ground La Zanja, or The Trench. The playing surface is natural grass, with the club maintaining separate artificial turf areas for hockey and futsal. The capacity is 4,500, a number that dwindles on a Tuesday night for a school fixture but swells for Nacional de Clubes finals. The 2023 championship match drew a crowd that filled the gaps between the seats, watching SIC defeat Universitario de Tucumán 25–18 to claim their fifth national title.

The rivalry with Club Atlético San Isidro (CASI) runs deeper than the league table. That last encounter in 2004 saw SIC win 55–18, a result that still sits in memory longer than most recent results. The stadium also carries weight beyond the scoreboard, hosting the 2020 memorial for Fernando Báez Sosa, where the crowd fell silent rather than cheering. The official website lists fixtures, but the ground exists independently of the schedule, standing between the residential blocks and the trees that line the perimeter, unchanged since the concrete replaced the wood.