In addition to Oppsal IF Fotball, 12 other teams played in 13-15 september Jenter 13 Nivå 2 (FØDT 2011) 9er . They were divided into 3 different groups, whereof Oppsal IF Fotball could be found in Group C together with Nordstrand IF Hvit, FC Gamle Oslo sort and Flint Fotball.

Oppsal IF Fotball continued to Slutspill B after reaching 3:rd place in Group C. In the playoff they made it to Semi final, but lost it against Verdal IL /Vinne 2 with 0-1. In the Final, Verdal IL /Vinne 2 won over FC Gamle Oslo sort and became the winner of Slutspill B in 13-15 september Jenter 13 Nivå 2 (FØDT 2011) 9er .