During this time of increasing tension and inequality, The MacDuffie Athletics Department is reconfirming its support for inclusion and a commitment in our stand against social injustice and racism.  We stand alongside our student-athletes, coaches and staff regardless of race, gender, religion, nationality or beliefs.  Our MacDuffie Mustangs family is unified to demonstrate respect and equality for all.  We are committed to listen and to support each other so our student-athletes can play and learn in a positive and judgement-free environment. We are determined to help make our community and society a better place for all our members.


Our after-school interscholastic athletic program is an important part of a student’s educational experience. We offer a variety of teams for both boys and girls during all three seasons. The Varsity program provides a competitive team experience where outcome and achievement are a high priority. All students are encouraged to participate, regardless of their skill level.

MacDuffie Athletics is committed to promoting the ideals of sportsmanship, respect, leadership, and integrity. Our goal is to build individual athletic ability, increase physical fitness, and help gain a sense of community.

Photo of Tyron Boswell

Tyron Boswell

Boys’ Basketball Coach

B.A., Northeastern University
M.Ed., University of Rhode Island

Coach Tyron Boswell comes to Granby after spending three seasons as an assistant coach and one as director of basketball operations at the University of Rhode Island under Dan Hurley (UCONN) finishing 51-18 and winning an A-10 Conference Championship. Coach Boswell was instrumental in recruiting players from all regions, his relentless work ethic made him one of the best recruiters in the region.…

Photo of Neil Domer-Shank

Neil Domer-Shank

Assistant Athletic Director; Head Baseball Coach; Physical Education Teacher

B.A., The College of Wooster
M.S., Ohio University

Neil Domer-Shank joined the MacDuffie athletic department staff in 2019, serving as the Assistant Athletic Director and Head Baseball Coach, teaching physical education classes, and working with student leadership development. “Coach D” spent the last 6 years in a similar role at The Master’s School, and before that was a Youth and Family Services/Camps Director in the Greater Hartford YMCA.…

Photo of Meirion George

Meirion George

Athletic Director; P.E. + Health Teacher; Director of Soccer and Girls’ Varsity Soccer Head Coach

B.A., Canterbury Christ Church University, England
Post Grad Certified in Education, Bedford College of Higher Education, England
M.Phil., Canterbury Christ Church University, England

Photo of Kevin Hillman

Kevin Hillman

Language Department Chair; French Teacher; Homestay Coordinator; Cross Country Coach

B.A., University of Wisconsin, Oshkosh
Diplôme, Université de Caen Basse-Normandie

Kevin Hillman’s life always seems to throw something new and exciting at him, and one of his greatest joys as a teacher is seeing students embrace their own experiences in life. Growing up in a rural setting helped foster Kevin’s interest in nature—gardening specifically—and his travels abroad gave him a better sense of the world.…

Photo of Peter Shelburne P’14, P’17, P’20

Peter Shelburne P’14, P’17, P’20

Mathematics Department Chair; Mathematics Teacher; Ultimate Frisbee Coach

B.A., Yale University
Ph.D., Michigan State University

Peter Shelburne lives in nearby Northampton and has three children who have attended MacDuffie (classes of 2014, 2017, 2020).  He enjoys developing projects to challenge and engage students in classes like BC AP and Multivariable Calculus and Pre-AP Calculus. He helped start the Ultimate Frisbee program at MacDuffie and has been the head Ultimate coach for eleven years.…

Photo of Art Thomas

Art Thomas

Basketball Coach