Bundesliga, the second tier of German football.
The club also participated in the DFB-Pokal.
Kiel finished the 2020–21 season in 3rd place, qualifying for the promotion play-offs, but lost 5–2 to 1.
FC Köln over two legs.
[1] Kiel announced pre-season friendly matches against Randers FC on 2 July, Brøndby IF on 10 July, VfL Wolfsburg on 14 July and Hallescher FC on 17 July.