|06 Mar 21||Colon ||-|| Aldosivi|
|14 Mar 21||Aldosivi ||-|| Central Córdoba|
|21 Mar 21||San Lorenzo ||-|| Aldosivi|
|28 Mar 21||Aldosivi ||-|| Banfield|
|04 Apr 21||Patronato de ||-|| Aldosivi|
|26 Feb 21||Aldosivi|| ||3 - 0|| ||Arsenal Sarandi|
|20 Feb 21||Racing Club|| ||2 - 2|| ||Aldosivi|
|13 Feb 21||Aldosivi|| ||1 - 2|| ||Godoy Cruz|
|14 Jan 21||Defensa y|| ||4 - 4|| ||Aldosivi|
|04 Jan 21||Aldosivi|| ||1 - 3|| ||Union|
Club Atlético Aldosivi (usually referred simply as Aldosivi) is an Argentine football club based in the city of Mar del Plata. The institution was founded on March 29, 1913, and plays in the first division of the Argentine football league system, the Argentine Primera División. The club's name comes from the first two letters of the last name of their founders, Allard, Doulfus, Sillard, and Wiriott (the w was changed to a v because there was no W available to telegraph the official announcement).
In 1979, Aldosivi merged with two other clubs from Mar del Plata and was known by the name Defensores del Puerto until 1981 when it returned to the traditional name, which it still uses today.