As a Freshman (2019-20):
Indoor: Competed in three meets ... Posted season-best mark of 5.42 meters in long jump at Springfield College (1/25) ... Ran season-best times in 60 meter dash (7.55) and 200 meter dash (24.18) at Mary Grinaker Invitational (1/18).

Prep:
Gagnon participated in track & field at Pembroke High School in Pembroke, Mass. He was named an All-Scholastic honoree as well as a Patriot League All-Star selection, plus he was a member of the National Honor Society.

Personal:
Gagnon's parents are Kelly O'Keefe and Scott Gagnon, and he has a sibling named Kasey. He is majoring in nursing.