LDU Quito won their fourth national championship under the guidance of manager Polo Carrera.
1990 | 1990 in music | Serie B | 1990 FIFA World Cup | 1990 ATP Tour | Americans with Disabilities Act of 1990 | Tretorn SERIE+ | Campeonato Brasileiro Série A | 1990 in baseball | Liga Nacional de Fútbol de Guatemala | 1990–91 in English football | 1990 Vuelta a España | 1990 in television | 1990 Commonwealth Games | United States Senate elections, 1990 | Liga Nacional de Fútbol Profesional de Honduras | Treasure Island (1990 film) | The Witches (1990 film) | Australian federal election, 1990 | Zorro (1990 TV series) | United States House of Representatives elections, 1990 | Teenage Mutant Ninja Turtles (1990 film) | Gun-Free School Zones Act of 1990 | Club de Futbol Universidad de Costa Rica | 1990 World Series | 1990 Luzon earthquake | 1990 in literature | 1990 in film | 1990 ICC Trophy | 1990 Bishop's Castle earthquake |