Tallon helped the Saints mount a playoff push in 2021 with a 5-4 overall record and 3-2 mark in Atlantic East Conference action. MU reached the semifinals of the conference tournament after the Saints rolled past Immaculata, 19-6, in the opening round.

His first season was, unfortunately, cut short due to the worldwide COVID-19 pandemic in 2020. After just seven games, the spring season was cancelled. The team was picked as the No. 3 team in the Atlantic East Conference preseason poll, but the season did not see any conference competition.

Tallon came to Marymount after being a member of the Ferrum College men's lacrosse team, while earning a Bachelor's Degree in Criminal Justice and Forensic Science. He also brings coaching experience to the Saints, after spending the spring of 2019 as an Assistant Coach at Patterson Mill High School.