
The Winchendon School
Program Scout Report
Overview
The Winchendon School stands as one of New England's most respected prep basketball programs, competing at the highest levels of NEPSAC competition. Founded in 1926, this Massachusetts-based institution has built a reputation for developing elite talent while maintaining strong academic standards that prepare student-athletes for the next level.
Coaching Staff
Head coach Alex Popp leads the program with a focus on fundamental skill development and competitive excellence. Under his guidance, the team maintains a disciplined approach that emphasizes both individual growth and team success within the rigorous NEPSAC framework.
Player Development
Winchendon's track record speaks to its ability to identify and develop high-level talent, with multiple players advancing to Division I programs annually. The program's current roster features nationally ranked prospects like Collins Onyejiaka and Isaiah Langham, demonstrating the school's continued ability to attract and develop elite talent through its comprehensive development system.
Culture & Academics
The school combines a historic New England boarding school environment with modern basketball facilities and academic resources. Winchendon maintains high academic standards while providing the structure and support necessary for elite athletic development.
Recruiting Outlook
With four nationally ranked prospects in the 2025 class, including top-100 player Collins Onyejiaka, the program shows strong momentum in talent acquisition. The 16-player roster demonstrates depth and the school's ability to attract quality prospects, positioning Winchendon to remain competitive at the highest levels of prep basketball for the foreseeable future.
Analysis by PrepRadar Scouting Team
Coaching Staff

Alex Popp
Head Coach
Alex Popp brings an impressive track record of talent development and extensive experience coaching at various collegiate and prep levels to his role as head basketball coach at The Winchendon School. Prior to his current position, Popp served as head coach at Vermont Academy from 2014-2020, where he led the Wildcats to their first and only NEPSAC AA Championship in 2016 with a victory over Cushing Academy. His collegiate coaching experience spans multiple institutions, including Holy Cross, Middlebury College, and Springfield College, providing him with a comprehensive understanding of player development pathways. Popp's coaching expertise has produced remarkable results at the professional level, having coached three NBA Champions: Malcolm Miller with the Toronto Raptors, Jordan Nwora with the Milwaukee Bucks, and Bruce Brown with the Denver Nuggets. His reputation for developing elite high school talent and understanding the intricacies of college recruitment makes him a valuable asset to student-athletes seeking to advance their basketball careers while pursuing academic excellence.
Achievements & Facilities
Championships
- 🏆 NEPSAC competitor
Facilities
The Winchendon School Campus - Winchendon, Massachusetts
Notable Achievements
- • Alex Popp hired 2025
- • Massachusetts prep school
Roster
Class of 2025
Collins Onyejiaka
📍 Boston
Attending: Alabama

Isaiah Langham
Attending: Brown

Ryan Altman
Attending: Pennsylvania

Reggie Grodin
Attending: Penn State
Class of 2026

Bryston Joyce
📍 Rego Park
Ezayi Mauristhene
📍 Milton

Brady Sehlhorst
📍 Glenview
Committed: Elon
Daniel Bussey
📍 Yonkers
Quinn Gibson
📍 Cherry Hill

Jason Grady
📍 Portland