In addition to Tyresö Handboll, 17 other teams from 8 different countries played in Boys 21. They were divided into 3 different groups, whereof Tyresö Handboll could be found in Group 3 together with Århus Håndbold, TV Birsfelden, Mölndals HF, Tsinghua University and Backa HK. Tyresö Handboll continued to A-Play-off after reaching 2:nd place in Group 3. In the playoff they made it to 1/4 Final, but lost it against Önnereds HK with 10-25. In the Final, Önnereds HK won over IK Sävehof and became the winner of A-Play-off in Boys 21.