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Basketball Staff

  • Jason SheaChristo Lagos
    Sports Coordinator



    Christo joined Kingsbury as a trainer in May 2017, and will oversee all sport court
    operations. Christo has been a life-long multi-sport athlete. He holds a
    bachelor's degree from Springfield College. He has coached high school
    football and legion baseball as well as Fury baseball 13U. Christo uses his
    love of exercise to inspire others to gain confidence through coaching proper
    technique. Dedication, hard work, honor, integrity and morality dictate all
    aspects of Christos' life and serve as a positive influence on the athletes he
    trains. Christo works with all ability levels and ages. He also is available for
    personal and small group training.

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  • Jason SheaKenny Small, Jr.
    Head of Basketball

    Kenny Small Jr. has come to Kingsbury Club Medfield
    team as the Head of Basketball Programming. Small is a
    co-founder of Boston Elite Basketball, currently the president
    of women’s skill development and coaches players from
    Elementary through High School. Coach Small brings with
    him a passion and dedication for developing the game of
    basketball and strong relationships with his athletes and
    their families. He graduated from Brandeis University
    where he was a two-year starter and competed in four NCAA
    tournaments. Coach Small grew up in Bridgeport, CT;
    attended Stratford High School gaining him the reputation
    as an outstanding basketball player. Currently, he holds the school's all-time leading scoring record.

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  • Jason SheaKenny Small, Sr.
    Lead Basketball Instructor & Director of Youth Basketball

    Along with his son, Coach Senior is a co-founder of Boston
    Elite Basketball and head of youth skills development.
    With his patience and old school teaching style, Coach
    Senior is able to attract the attention and excitement of
    kids who range from kindergarten to 8th grade. His
    enthusiastic coaching style drives kids to love the game
    and develop skills at a high level. Coach Senior grew up in Bridgeport, CT., where he graduated
    and played college basketball at North Carolina A&T University.

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  • Terrell Hollins
    Lead Basketball Instructor & Post Play Coach Specialist

    Terrell Hollins attended Brandeis University where he was a standout forward for the Judges. As a senior, he was first team All-UAA and All New-England selection by d3hoops.com, the number one source for Division III Basketball.
    He earned a selection to the inaugural NABC Division III Senior All-Star Game. Coach Hollins finished his career 18th place on Brandeis University’s career scoring list with 1,191 points and placed 6th place with 706 rebounds. After college, he coached at many different levels. He started his coaching career with Lexington High School, moved on to assistant coach for Suffolk University for a season, then Brandeis University for 3 seasons. He is the only player in Brandeis history to have 1000pts, 500rebs and 200 assists.
    Coach Hollins has also been a great addition to the youth of the community, finishing his recent stint as Athletic Director of the John M. Barry Boys & Girls Club of Newton. He is currently the head varsity boys coach at Concord Academy and head 7th grade metrowest coach in Concord. He also serves as the Director of Basketball Operations at Boston Elite Basketball.

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  • Stephen Callahan
    Manager of Basketball Operations & Senior Basketball Instructor

    Coach Callahan has been involved with coaching and training kids for the last 20 years. He attended Westfield State University and recently received a Masters in Sports Management from Lasell College in Newton, Ma.
    Coach Callahan has coached at many different levels. He has coached for a number of local AAU teams (Greater Boston Lions, Mass AAU, Hoop Stars, Shooting Stars and New England Cyclones).  He has also coached a number of years at different camps and clinics such as Hoop Mountain, Top 75/100, Hoop Group and other local camps and clinics in New England.
    As an assistant coach, Callahan helped Millis High School to a TVL Co-championship, and served three seasons for North Cambridge Catholic, who would go on to win back-to-back MIAA state championships.
    Coach Callahan went on to coach two seasons at Dean College when it earned 2011 Region XXI champion, Franklin, Ma. 2010-2011
    (2011 Region XXI Champions) and Framingham State University from 2011-2014.
    Along with coaching, Coach Cal has been working in the non profit sector and within Higher Education previously serving as an Assistant to the Athletic Director at Bunker Hill Community College, Development Coordinator and Assistant to the President at Cambridge College with other positions at Mount Ida and Regis College. 
    Currently Coach Cal works for Edwards House, a non profit meeting and retreat facility in Framingham, Ma. Coach had also established his own non profit, Hoop House; which is designed to assist and help local non profit youth grassroots organizations with fundraising initiatives. He is a single father to his son Avani, who currently resides in Franklin, Ma.
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  • David Watkins
    Senior Basketball Instructor

    David is a recent graduate and former Division 1 basketball player of the University of New Hampshire. He was on the all time winningest team in school history, with back- to back 20 win seasons. He is currently the varsity assistant coach at Brimmer and May school, helping with player development and recruiting. He trains many elite players - both boys and girls - that are currently receiving attention from Division 1 and 2 schools.

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  • Derek Retos
    Lead Basketball Instructor & Shooting Coach Specialist



    Coach Retos joined the Tufts University Men’s Basketball staff in the Summer of 2015 and is now in his fifth season. In his time as an assistant coach, the Jumbos have compiled a record of 87-39. As an assistant coach, Retos is in charge of all player development, as well as game and practice preparation.
    Retos is a graduate of Brandeis University, where he was a three-year captain and four-year member of their men's basketball program from 2010-2014. He would go on to graduate as the school's all-time leader in three-pointers made and free throw percentage. In addition, Retos earned the Athletic Director's award in his senior year, which is given each year to a student who has displayed general excellence in representing Brandeis Athletics.
    Retos earned his degree at Brandeis in Business. Originally from Foxborough, Massachusetts, Retos graduated from the Brimmer & May School in Chestnut Hill as the school's all-time leading scorer.

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