|High School:||The Westminster School|
2015-16: Finished with an 0-3 record in his sophomore season.
2014-15: Picked up a victory in his only match of the year against NYU in the No. 10 position.
At Westminster: Donnelly was a four-year letter winner in both squash and tennis at The Westminster School. He led his team to four straight State Championship tennis titles. Donnelly competed at the #1 spot for the squash team and in 2012 led the squad to capture the D6 High School National Championship. He also received the Junior Spotlight from the South Eastern Squash Racquets Association.