In addition to Lillestrøm, 15 other teams played in 20-22 august Jenter 16/17 (FØDT 2005/2004) 11er Elite. They were divided into 4 different groups, whereof Lillestrøm could be found in Group A together with Hei IL - Fotballgruppe, Løten FK and Malvik IL.

Lillestrøm made it to Slutspill B after reaching 3:rd place in Group A. Once in the playoff they won every match inluding the Final against Tynset IF, which they won with 6-0. Thereby Lillestrøm won the entire Slutspill B in 20-22 august Jenter 16/17 (FØDT 2005/2004) 11er Elite during Jente Talent Cup 2021-høst.