Oppegård IL 2

In addition to the two Oppegård teams, 99 other teams from 18 different countries played in Boys 15. They were divided into 16 different groups, whereof Oppegård IL 2 could be found in Group 12 together with HSG Nordwest, RK Zagreb, Eidsvold Turn, Kärra HF, Ljunghusens HK 1 and IF Stjernen Odense. Oppegård IL 2 made it to B-Play-off after reaching 5:th place in Group 12. Once in the playoff they made it all the way to the Final, but lost it against Elverum Håndball 2 with 15-18. Thereby Oppegård IL 2 finished second in B15 B-Play-off during Partille Cup 2023.