Charvat is an infielder out of the University of Illinois. After a red-shirt season in 2009 Charvat played in the Chicago Suburban Baseball League during the summer, helping his team to the Amateur Collegiate World Series. Back with the Illini in 2010 he collected five hits over 18 games playing every infield position except shortstop. Charvat took a second turn at summer ball in 2010 in the Great Lakes League. The sophomore engineering major lettered in both basketball and baseball at Conat High School.