In 1920 the club won their first district championship title by defeating Falkenbergs FF with 4–0 in the final and boxing was introduced by the club. In 1921 the club yet again won the championship, this time by defeating IS Halmia, the club also won "Hallandspostens pokal" after defeating "Halmstads IF" 5–0. The same year, a women's section was added to the athletics part of the club. Halmstads BK won the "Bernhard Aronssons vandringspris" after defeating IS Halmia in 1922; the club also won a series of tournaments in Jönköping, Malmö and Ängelholm, however the district championship was lost to Varberg this year. The local rivalry with Halmia was also seen in bandy, the first ever bandy game between two organised teams in Halland, is thought to have been played between these rival clubs in 1922.