BSG was renamed SV Westende-Laar Hamborn in 1942 and the team returned to first division play.

[1] They promptly took the division title in 1942–43 and advanced to the eighth final of the national playoffs where they were badly handled (8:0) by VfR Mannheim.

During this period Westende made appearances in the opening rounds of the Tschammerpokal tournament (1939, 1941, 1942), predecessor to today's DFB-Pokal (German Cup).

Following the end of World War II, occupying Allied authorities ordered the dissolution of most organizations in the country, including sports and football clubs.

Through the early 50s SW Westende played in the Amateurliga Niederrhein where their best results were a pair of fourth-place finishes.