The Panhellenic Junior Boys-Girls Judo Championship in which Athens College Junior High School 9th grader, Konstantinos Tsaparas, and Athens College High School 10th grader, Marilia Tsapara, participated took place on July 17-18, 2021 in Larisa. They took 1st and 2nd places in the 50kg and 52kg categories respectively.

They also took part as members of the National Judo Team in the Pan European Junior Boys-Girls Judo Championship that was held in Riga, Latvia on August 17-19, 2021.  At this meet, Konstantinos Tsaparas placed 7th in the 50kg category.