Education
Gruenewald attended Fayetteville-Manlius High School, where he totaled 42 goals and 57 assists in five seasons. During his senior year he was named Central New York Player of the Year and received 2004 NSCAA/adidas High School Boys All-America honors.
Jon played four seasons at Rollins College, finishing his career with 25 goals and a school-record 42 assists. He was named to the Sunshine State Conference first team, the NSCAA All-South Region second team, and the Daktronics All-South Region first team during his junior season.
In his final Rollins season he was named to the Sunshine State Conference All-Tournament team, NSCAA All-South Region first team, Daktronics All-America first team, NSCAA/Performance Subaru All-America first team and NSCAA/adidas Scholar All-America first team as well as being awarded Sunshine State Conference Player of the Year, Offensive Player of the Year and Daktronics South Region Player of the Year.
During his final two seasons at Rollins Gruenewald also played in the USL Premier Development League for the Central Florida Kraze.
