1990 Mieczysław Połukard Criterium of Polish Speedway Leagues Aces  The 9th Mieczysław Połukard Criterium of Polish Speedway League Aces was the 1990 version of the Mieczysław Połukard Criterium of Polish Speedway Leagues Aces. It took place on March 25 in the Polonia Stadium in Bydgoszcz, Poland.