2026 • SENIOR SEASON
Season: Appeared in all 16 games…Scored 2 goals…Scooped 33 groundballs and tallied 15 caused turnovers
Colgate (2/1): Recorded one shot and one groundball... Villanova (2/7): Recorded one groundball and one caused turnover... at Princeton (2/14): Recorded one caused turnover... at Navy (2/21): Recorded two groundballs and one caused turnover... Yale (2/28): Recorded one goal, three groundballs, and two caused turnovers... Cornell (3/7): Recorded three groundballs and one caused turnover... North Carolina (3/14): Recorded five groundballs... Maryland (3/21): Recorded two groundballs... at Ohio State (3/28): Recorded three groundballs and two caused turnovers... Johns Hopkins (4/4): Recorded one groundball... Michigan (4/11): Recorded one shot, three groundballs, and two caused turnovers... at Rutgers (4/17): Recorded one groundball... Maryland (4/30): Recorded one goal, one groundball, and one caused turnover... Johns Hopkins (5/2): Recorded one groundball... Army West Point (5/9): Recorded one groundball and one caused turnover... Princeton (5/17): Recorded five groundballs and three caused turnovers.
2025 • JUNIOR SEASON
Season: Appeared in all 17 games... Recorded one goal and added two assists for three points... Scooped 29 ground balls and tallied 14 caused turnovers.
Colgate (2/1): Recorded one assist, scooped three ground balls and tallied three caused turnovers... at Villanova (2/9): Scooped two ground balls and tallied one caused turnover... Princeton (2/15): Tallied one caused turnover... Navy (2/22): Scooped one ground ball and tallied one caused turnover... at Yale (3/2): Scooped six ground balls and tallied two caused turnovers... Ohio State (3/23): Scooped two ground balls and tallied two caused turnovers... at Maryland (3/29): Scooped three ground balls... Rutgers (4/18): Scooped four ground balls... Johns Hopkins (4/26): Scooped two ground balls... Colgate (5/10): Scored one goal, scooped one ground ball and recorded one caused turnover... vs Notre Dame (5/18): Scooped one ground ball and recorded one caused turnover... vs Cornell (5/24): Recorded one assist, scooped two ground balls and recorded one caused turnover.
2024 • SOPHOMORE SEASON
Awards: Named to 2024 Academic All-Big Ten list...Named to USILA Team of the Week (4/25)...Named Big Ten Defensive Player of the Week (4/23).
Season: Appeared in all 16 games... Scooped 21 ground balls and caused 12 turnovers.
Colgate (2/1): Registered three groundballs and two turnovers. Villanova (2/10): Caused one turnover. at Stony Brook (2/17): Scooped two groundballs and caused one turnover. Navy (2/24): Collected two groundballs and caused three turnovers. at Yale (3/2): Scooped one groundball. Cornell (3/9): Picked up one groundball and caused one turnover. Marquette (3/16) at Springfield: Participated in the game. at Ohio State (3/24): Played in the game. Maryland (3/31): Collected two groundballs and caused one turnover. at Johns Hopkins (4/6): Played in the game. Michigan (4/13): Recorded one turnover. at Rutgers (4/19): Secured four groundballs and caused three turnovers. Rutgers (4/27): Played in the game. Maryland (5/2) @ Columbus, Ohio (Big Ten Tournament): Collected four groundballs, one turnover, and one caused turnover. Michigan (5/4) @ Columbus, Ohio (Big Ten Tournament): Secured one groundball. at Georgetown (5/12): Picked up one groundball and caused one turnover.
2023 • FRESHMAN SEASON
Season: Appeared in seven games in his first season...Made collegiate debut against Lafayette (2/4).
Lafayette (2/4): Scooped one ground ball and caused one turnover. Stony Brook (2/18): Scooped one ground ball. at Yale (2/25): Scooped one ground ball. Ohio State (4/2): Caused one turnover. vs. Army (5/21): Scooped one ground ball. vs. Duke (5/27): Scooped two ground balls.
PRIOR TO PENN STATE
Rated a three-star recruit by Inside Lacrosse…Played varsity at Haverford School since eighth grade…Helped team to 43-14 record and three Inter-Ac runner-up finishes over final three seasons…Played nine years of club lacrosse with Mesa Fresh, which finished the recent season ranked No. 5 in the country according to US Club Lax.
PERSONAL
Parents are Gui and Susan Costin…Has one older brother, Mac, who is a current member of the Penn State men's lacrosse team, and one older sister, Cate, who is on the squash team at Franklin & Marshall…Father, Gui, played golf at Virginia…Cousin, Sean Dolan, played hockey at Wisconsin…Hobbies include lawn games, woodworking, and hanging out with family…Intends to major in business.