Bochum and Greuther Furth sealed promotion to the Bundesliga on Sunday, with Holstein Kiel slipping to third and facing a play-off against Cologne.
A 3-1 victory over Sandhausen saw Bochum clinch the 2. Bundesliga title and a return to the top flight for the first time since their relegation in 2009-10.
Greuther twice came from behind to claim a 3-2 victory over Fortuna Dusseldorf, moving them above Kiel and back into the Bundesliga after an eight-year spell in the second tier.
Kiel, who reached the DFB-Pokal semi-finals this season, missed out on automatic promotion after surrendering a first-half lead in a 3-2 defeat at home to Darmstadt.
However, they can still earn a place in the top flight for 2021-22 by overcoming Cologne, who escaped automatic relegation from the Bundesliga on Saturday.
Cologne will be at home for the first leg on Wednesday. The return fixture is scheduled to take place on Saturday.
FULL-TIME AGAINST SANDHAUSEN!! VFL BOCHUM ARE CHAMPIONS OF THE 2. BUNDESLIGA
— VfL Bochum 1848 (@VfLBochum1848EN)