In addition to Rosendal TL, 86 other teams from 5 different countries played in Boys 15 - born 2003- 11 aside . They were divided into 21 different groups, whereof Rosendal TL could be found in Group 19 together with Greipstad IL, Snarøya SK and HamKam.

Rosendal TL continued to Playoff B after reaching 4:th place in Group 19. In the playoff they made it to 1/16 Final, but lost it against Klemetsrud IL 1 with 4-5. In the Final, Tertnes Fotball Herrer 1 won over Haugerud IF and became the winner of Playoff B in Boys 15 - born 2003- 11 aside .

Rosendal TL also participated in C - Boys 11-aside, 14 years during Norway Cup 2017. They reached the 1/64 Final in C Playoff A, but lost it against Bergsøy IL with 0-5.