Racing Club is located in Avellaneda, Buenos Aires, while Unión is located in Santa Fe, Argentina.
Racing Club has won the Argentine Primera Division 9 times, with their most recent title coming in the 2018-2019 season.
Unión has never won the Argentine Primera Division, but they have finished as runners-up on two occasions.
Racing Club's home ground is the Estadio Presidente Juan Domingo Perón, commonly known as El Cilindro, while Unión's home ground is the Estadio 15 de Abril.
Racing Club has a fierce rivalry with Independiente, known as the Avellaneda derby, while Unión has a rivalry with Colón, known as the Clásico Santafesino.
Racing Club's most famous player is Diego Milito, who won two Primera Division titles with the club, while Unión's most famous player is Nery Pumpido, who played for the club before becoming a successful manager.