In the early morning of May 5, Cologne will face Freiburg at home. As of this writing, Köln is in the bottom two of the Bundesliga with 23 points, a score only higher than bottom Darmstadt and 5 points behind Mainz in front of them.
The result of the match against Freiburg is not so bad as to pronounce the relegation result of Cologne, but if they can't win against their opponents, Cologne will basically bury themselves in the Bundesliga in front of the road.
If they beat Freiburg: the gap with Mainz is expected to be narrowed, and the last two rounds of the tournament against Berlin United and Heidenheimer are expected to be relegated if they can get points again.
A draw against Freiburg: the team is in danger of relegation on the 6th - if Mainz beats Heidenheimer, the difference will widen to 7 points, even if Köln wins all of its last two games and Mainz loses all of them.
If they lose to Freiburg: theoretically Köln still has a glimmer of hope for relegation, provided Mainz loses all of the last three rounds and Köln wins the last two - Köln can't hope for a tiebreaker over goal difference, as they have the second worst goal difference in the whole of the Bundesliga with a goal difference of -30.