Harvard University

First-Year (2025-26)
Appeared in two games… Made his season debut against Northeastern (Feb. 9)… Recorded one shot and finished with a plus-1 rating in the win over Northeastern… Also saw action at Brown (Feb. 13).

Before Harvard 
Competed in varsity hockey, varsity rowing (First Boat), and varsity dynamic/weight training at The Hotchkiss School … Played club hockey with Philadelphia Hockey Club (2016–2021), GBL Jr. Bruins (2021–2022), and New Jersey Rockets (2022–2023) … Also played lacrosse for Philadelphia Freedom (2016–2020) … Finalist for Neutral Zone Prep Defenseman of the Year … Named to the Flood Marr All-Tournament Team and earned Team Defense MVP honors at Hotchkiss … Set the program record for fastest 2k row as a sophomore and was the fastest in-house sophomore in 2022 … In rowing, won a Manny Flick with Haverford as a freshman … Played for the Madison Capitals and Dubuque Fighting Saints, reaching the conference finals with Dubuque … Earned First Honor Roll every semester during sophomore and junior years at Hotchkiss … Enjoys golf, chess, skiing, card games, and collecting golf balls in honor of his grandfather … Son of Kathleen and Jim Mackey; Kathleen attended Villanova and Jim played both hockey and lacrosse at Yale … Twin sister, Aubyn, is currently rowing at Tufts and holds freshman erg records … Sister, Anna, is a member of Team USA's Skyliners Junior synchronized skating team.