Summary of previous matches between the team of Club Atlético Unión and the team of Defensa Y Justicia since 2010-10-18:
                            Club Atlético Unión won 4 matches against Defensa Y Justicia, lost 1 matches, and 1 matches were draws.
                        
| Time | League | Home Team | Score | Away Team | 
|---|---|---|---|---|
| 2025-08-29 | Argentina Cup | Club Atlético Unión | 0 : 0 | River Plate | 
| 2025-06-29 | Argentina Cup | Rosario Central | 0 : 0 | Club Atlético Unión | 
| 2025-03-06 | Argentina Cup | Club Atlético Unión | 3 : 1 | Colegiales | 
| 2025-01-18 | International Club Friendly | Club Atlético Unión | 2 : 1 | Atletico Tucuman | 
| 2025-01-12 | International Club Friendly | Club Atlético Unión | 1 : 3 | Univ Catolica | 
| 2024-04-18 | Argentina Cup | Club Atlético Unión | 1 : 2 | Gimnasia Mendoza | 
| 2024-01-20 | International Club Friendly | Club Atlético Unión | 0 : 0 | Univ.Cesar Vallejo | 
| 2024-01-17 | International Club Friendly | Defensor Sporting Montevideo | 1 : 1 | Club Atlético Unión | 
| 2024-01-14 | International Club Friendly | Nacional Montevideo | 1 : 1 | Club Atlético Unión | 
| 2023-05-10 | Argentina Cup | Club Atlético Unión | 1 : 1 | Almagro |