River won a thrilling match at the start of the series.

At the Club's Microstadium, Agustín Bajz's team achieved a tight but deserved victory in the debut of the series against the rival team.

River was superior from the start: they took the first quarter 19-11 and extended the lead in the second, reaching halftime up 41-35. However, Caza y Pesca did not give up and in the third quarter turned the game around, taking the lead by up to 3 points at the start of the quarter. River managed to hold on in the key moments and sealed a tight victory by 72-70.

Genaro Lorio was River's standout player with 21 points, while Juan Pablo Venegas contributed 16, being decisive in the final moments of the match.

The second game of the series will be played on Friday, July 17, at 9 p.m.