Who is Quinn Costello? Medford’s Newman School Star Set to Play in McDonald’s All-American Game
The Medford native has turned into one of Massachusetts’ top basketball prospects, earned McDonald’s All-American honors and signed with Michigan.
Who is Quinn Costello? Medford’s Newman School Star Set to Play in McDonald’s All-American Game originally appeared on NESN . Add NESN as a Preferred Source by clicking here .
Massachusetts high school basketball has another national name to know, and it’s Quinn Costello. The Medford native and Newman School senior has gone from intriguing local prospect to one of the top players in the country, earning a spot in the 2026 McDonald’s All-American Game. ESPN currently lists Costello as the No.
28 player in the class of 2026 and the No. 1 prospect in Massachusetts, while also noting he’s signed with Michigan . That makes Costello more than just a good local story.
It puts him on one of the biggest stages in high school basketball, with a place on the Boys West roster for Tuesday night’s game in Glendale, Arizona. For fans around Boston and beyond, this is the kind of rise that grabs your attention fast. Quick facts on Quinn Costello Hometown : Medford, Mass.