Born and raised in Moundsview, Minn., Dan Croonquist began winning championships at an early age by winning the 1975 State High School Championship. Following High School Croonquist continued his winning ways at Arizona State University by winning the 1979 PAC-10 Championship and earning All-America honors. Returning home from college, Croonquist won the Minnesota Golf Champions and Minnesota State Open in 1979 and the Open again in 1980. Croonquist also finished runner-up in the State Open twice and finished in the top ten ten consecutives years. After a short stint as a professional, Croonquist returned to the amateur ranks and won the 1990 Minnesota State Amateur.