In addition to Kolbotn IL, 11 other teams played in 13-15 september Jenter 15 Elite (FØDT 2009) 11er . They were divided into 2 different groups, whereof Kolbotn IL could be found in Group B together with IFK Lidingö FK 1 FA, Tromsø IL Rød, Ranheim IL and QBIK.

Kolbotn IL continued to Slutspill B after reaching 3:rd place in Group B. In the playoff they made it to Semi final, but lost it against Øvrevoll Hosle IL ØHIL with 1-2. In the Final, Øvrevoll Hosle IL ØHIL won over Vålerenga IF & Hasle-Løren IL and became the winner of Slutspill B in 13-15 september Jenter 15 Elite (FØDT 2009) 11er .

Kolbotn IL also participated in 18-20 august Jenter 14 Elite (FØDT 2009) 11er during Jente Talent Cup 2023. They reached the Semi final in J14 11er Elite Slutspill A, but lost it against Holmen IF with 1-3.