Under Kurz, the club secured promotion to the 1. Bundesliga on 25 April 2010 after four years in the second league. At the start of the 2010–11 season, newly promoted 1. FCK had a promising two-straight wins, including a 2–0 victory over the previous year's Bundesliga champions, Bayern Munich. However, after a hard-fought 2–1 defeat at Mainz 05 and a 5–0 drubbing at eventual season champions, Borussia Dortmund, the club began to struggle and fell back to just ahead of the relegation zone. The club then had a poor start to the second half of the season – dropping into the relegation zone for several weeks – but managed to coalesce and eventually earned seven victories in their last ten matches, recording only two defeats and a single draw. They ended this run with four straight victories to finish the season at the seventh place.