The 1990 Junior League World Series took place from August 13–18 in Taylor, Michigan, United States. Yabucoa, Puerto Rico defeated San Antonio, Texas in the championship game. It was Puerto Rico's second straight championship.
This year featured the debut of the Europe Region.
Teams United States International IllinoisCentral Whalley, British ColumbiaCanada New JerseyEast Kaiserslautern, West GermanyKMCEurope San Antonio, TexasMcAllister ParkSouth MexicoMexico Aiea, HawaiiWest Yabucoa, Puerto RicoPuerto Rico
Results Whalleyball Reings Again. Lethbridge HeraldAiea Wins World Series Opener. Honolulu Star-AdvertiserAiea Loses First. Honolulu Star-AdvertiserBaseball. Detroit Free PressAiea, Kawaihau Teams Ousted. Honolulu Star-AdvertiserBriefly. Detroit Free Press
1990 Junior League World Series ChampionsYabucoa, Puerto Rico
References