after the 1941/42 relegation, landskrona bois first became a top team in their division 2 group, and on two occasions they won their group, thereby winning promotion back to allsvenskan. on both occasions their stays were short, finishing last in both the 1944–45 and 1948–49 allsvenskan seasons. the situation worsened in the 1951–52 season, with bois finishing ninth of ten teams in the second tier, and being relegated to the third tier. with landskrona's other notable club, bk landora, also relegated from division 2, landskrona now lacked any representation in the two top tiers of swedish football. that situation would last only one year, however, as bois were promoted back to the second tier in 1953.