The 2020-21 campaign delivered a tense, hard-fought, and vital Bundesliga survival for Arminia Bielefeld as Die Arminen clung onto their top-flight status, finishing a crucial 15th. Leading the charge were the dependable veteran Fabian Klos and the dynamic loanee Ritsu Doan, who each netted 5 goals in a campaign built on defensive organization and a dramatic late-season surge under new manager Frank Kramer. It was a season of ultimate relief and consolidation that marked the club's successful fight to secure their place in the top tier for another year.