1914 saw the culmination of a merger between Betis Football Club and Sevilla Balompié.

With the patronage title, the club became Real Betis Balompié.

On 8 October 1915, the first Seville derby took place, ending with a 4–3 Sevilla victory.

Sevilla are located in the richer Nervión district of Seville and play at the Estadio Ramón Sánchez Pizjuán while Real Betis play in the Heliopolis region at the Estadio Benito Villamarín and are backed more by the working class.

Only league and cup matches since the 1980–81 season counted.