Dortmund and Bayern, all or nothing: what results do each need to win the title?

There is no time for more words. The Bundesliga will have its big match day on Saturday 27th May, when a total of nine games will be played simultaneously, with the league title, relegation and European qualification places at stake.
The main focus will undoubtedly be on Borussia Dortmund, who will become the new German league champions if they beat Mainz 05 at the historic Signal Iduna Park.
The Black-and-Yellow have in their hands the possibility of ending, once and for all, the hegemony of Bayern Munich, who have won the last 10 Bundesligas in a row and who, on this occasion, will have to wait for the leaders to slip up in order to be crowned champions.
The Bavarian giants will have to win away to Köln, but they will not be relying on themselves. Borussia Dortmund have everything in their favour to win a title they have not won since the 2011-12 season.
However, the German championship can still slip from his grasp if a number of results occur, which will be detailed below.

What results do Borussia Dortmund need to win the Bundesliga title?
With one game to go, Edin Terzic's side lead the standings on 70 points, two clear of Bayern. A win will be enough for the Dortmund side to claim the coveted Bundesliga trophy.
In the event of a draw against Mainz, Borussia will be crowned only if Bayern lose or draw their game, as a Bavarian win would leave both on 71 points but put the Munich side in first place on goal difference.
However, if the Black-and-Yellow team loses at home, they will have to pray that Thomas Tuchel's side drop points and fail to get a win against Koln.

What results do Bayern Munich need to win the Bundesliga title?
Bayern are not dependent on themselves to win the title. The multiple German champions, who surrendered the lead last weekend, will need to win away to Cologne, but will have to hope for a slip-up from Dortmund.
If Munich win their match and the leaders lose or draw against Mainz 05, the title will be back in Munich's hands for the 11th time in a row. As mentioned above, goal difference will be crucial this time around.
Should Bayern lose or draw against Koln, the Dortmund side will be crowned champions automatically, without depending on their own result. All or nothing.