To promote physical well-being and skill development Seisen offers a supportive and competitive sports program to Middle School students.
Seisen Middle School teams are often the largest of any in the Kanto Plains league. At Seisen no athletes are ever cut from Middle School Sports. This provides every student an opportunity to play and develop their skills and cooperation. Because of this Seisen has developed a supportive atmosphere, resulting in 21 Kanto Plains Middle School league and tournament championships in the last 5 years.