In addition to the two Önnereds teams, 71 other teams from 16 different countries do play in Boys 13. They are divided into 12 different groups, whereof Önnereds HK 1 can be found in Group 12 together with Lugi HF 2, Torslanda HK 2, FH 2, Furesø Håndbold and FIF Håndbold. Önnereds HK also participated in Boys 12 during Partille Cup 2023. They reached the 1/8 Final in B12 B-Play-off, but lost it against FFI Håndbold with 9-10.