Real Betis (31%). The first match between the two clubs took place on 8 February 1915, with Sevilla winning 4–3. The match was not completed, as high tensions led an aggressive crowd to invade the pitch, forcing the referee to abandon the match. In 1916, the first "Copa Andalucía" was held, this being the first official derby of the Sevilla area. Of the 17 runnings of the cup, Sevilla were victorious 14 times, to Betis' one sole conquest; this included a 22–0 routing after the latter sent their youth team, in 1918. The first time the teams met in league, in "Segunda",
Real Betis not offer further economic growth, he was replaced by Betis most famous former president, Benito Villamarín. During his reign Betis returned to the top division in 1958–59 and finished in third place in 1964. His purchase of the Estadio Heliópolis in 1961 is seen as a key point in the history of the club – the grounds were called the "Estadio Benito Villamarín" until 1997. In 1965, Villamarín stepped down from his position after ten years at the helm of the club. Just one year after Villamarín's departure, the club would again be relegated to division two, then rising and