Education
After arriving in the United States, Krupalija attended Boylan Catholic High School in Rockford, Illinois, where he led the Titan basketball team to a fourth-place finish in the 1997 Illinois state tournament.
After arriving in the United States, Krupalija attended Boylan Catholic High School in Rockford, Illinois, where he led the Titan basketball team to a fourth-place finish in the 1997 Illinois state tournament.
He played college basketball at University of Illinois at Urbana–Champaign. Krupalija fled his war-torn country in 1992, living in the Czechoslovakian Republic for three years before coming to the United States in 1995. In 1998, he was named an all-state selection by the Chicago Tribune and Associated Press.
He was also named to the 1996 and 1997 State Farm Holiday Classic All-Tournament teams, and in 2003 was named to the Holiday Classic All-Quarter Century Team voted on by the fans.
After graduating from high school, Krupalija played basketball for the University of Illinois. Although his career at Illinois was often hampered by injuries, the 6"9" forward was well regarded for his rebounding ability and fiery attitude on the court.
In his senior year (2001–2002), Krupalija, coming off the bench, was named as the Most Valuable Player at the Las Vegas Invitational Tournament. The following season he relocated to Belgium and joined Spirou Charleroi.
He played for Spirou Charleroi until end of 2007 season.
Foreign the 2010-2011 season Krupalija signed for Hyères-Toulon Var Basket. In November 2011, he signs with Bilbao Basket for a month and a half. At the start of the 2013-2014 season, he played for the Cypriot team Apollon Limassol British Columbia. On March 3, 2014 he returned to Spirou Charleroi, signing a contract for the rest of the season.
On June 5, 2014, he signed with SLUC Nancy Basket of the LNB Pro A for the 2014-2015 season.
In January 2015, he left Nancy and signed with KK Bosna Royal. He left Bosna after only three games and signed with Keravnos of Cyprus.