The club finished construction of its football field in 1926, and its ski jumping hill Rannkollen in 1928.

In 1932 the football field was covered with gravel, which allowed the practice of skating sports during the winter.

He was a central person in the Norwegian Confederation of Trade Unions, and helped the club get a money loan in Akers Sparebank, which financed the field and hill construction.

In 1929, Grorud IL decided to join the Workers' Sports Confederation (or AIF), where Trygve Lie also was a central figure.

Source:[5] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Hilde Fredriksen notably finished sixth in the unofficial 1980 World Championships in 400 metres hurdles, and also holds the Norwegian record in the event.