In 2005, the club was runner up of the Primera Division Apertura tournament, losing the final to Unión Española. However, the club had a dismal Clausura tournament, and were one spot away from being relegated.
Coquimbo won the 2018 Primera B and returned to the Primera Division for the 2019 season after 14 years of absence. The club has a great return in the 2019 season, finishing fifth in the league table and qualifying to continental competitions for the first time in 28 years.
In 2020, the club had a poor season in the Primera Division, and were eventually relegated. However they had an excellent Copa Sudamericana campaign, where they reached the semi-finals and were eliminated by the champions, Defensa y Justicia, but eliminated notable teams like Atlético Junior and Sport Huancayo on their way to this stage.
Statistics
Seasons in Primera División: 27 (1963–65), (1978–80), (1984), (1991–2007), (2019–2020), (2022–)
Seasons in Primera B: 36 (1959–62), (1966–74), (1976–77), (1981–83), (1985–90), (2008–2018), (2021)
In 2007 the stadium was selected as a venue for the 2008 FIFA U-20 Women's World Cup. In order to comply with FIFA standards, a completely new stadium was built. Its capacity was increased from 15,000 to 18,750. The new stadium has the shape of ship so as to homage Coquimbo's oceanic tradition. The city has been famous due to its port and pirate lore. The stadium was inaugurated on 9 November 2008.