On April 4 , 1999 , the Rockies made history as they played their Opening Day game against the defending National League champion San Diego Padres at Estadio de Beisbol Monterrey in Monterrey , Mexico – marking the first time Major League Baseball opened the regular season outside the United States or Canada . Colorado beat San Diego , 8 – 2 , in front of a crowd of 27,104 people . Only a little over 2 weeks later , the Columbine High School massacre postponed a home game with the Montreal Expos ( it was made up as part of a doubleheader in August )
Columbine High School massacre
Columbine High School massacre
History of the Colorado Rockies