Grady won titles in 1983 , 84 , 98 and Andy won Friday 's Class 4A final .
Hutchinson 's Grady and Andy Rostberg are the first father - son duo in Minnesota State High School League history to win state titles as head coaches .
father - son duo won titles in 1983 , 84 , 98 and Andy Rostberg won Friday 's Class 4A final .
Hutchinson 's Grady and Andy Rostberg are the first father - son duo in Minnesota State High School League history to win state titles as head coaches .