Regarding the game between Dortmund and Mainz, I saw the odds for Mainz as worth taking the risk. We have a 15.25 rate for winning Mainz in this game which is really tempting for me, Dortmund lost many points this season and if they lose this game it's not surprising even if they need the full three points to win the league.
I feel it's worth taking the bite as Mainz always play the role of spoiler for someone who is comfortably performing or need a crucial win. I have lot of parlay bets messed up by them. If you check Mainz performances, they have beaten Bayern and Lepizig recently, so I personally wouldn't want to go against them for low odds.
For Dortmund it will be a title after a decade so they will push hard but I am sure it wouldn't be easy going against Mainz. Well not as easy as bookmakers are favouring Dortmund here ahead of the fixture.
The odds available for this fight will still change. I just tried to check again, Mainz has @13.00 odds. it's a shame, I don't have the latest information regarding the predicted line-up of these two teams. So, it's hard to predict what scenario these two coaches will do. but if we refer to the available odds, on paper Dortmund will win this match. at least, this can be strengthened based on the last 4 matches played by Mainz with defeats. even in these 4 matches, Mainz conceded 13 goals. so, it is very natural that Dortmund is far more favorite. but my guess is, this match will run quite tough. because, it looks like Dortmund will play a little more carefully so that mistakes don't happen.
On the other hand, if I'm not mistaken, some of Mainz's core players are still suffering from injuries. and it seems, they will be absent in the match against dortmund. but certainly, Dortmund will not let the opportunity that is in front of their eyes. I'm pretty sure Edin Terzic will motivate his squad to overthrow Mainz in the match. in essence, the Dormund players had to let go of the burden that was on them. that way, Dortmund can play with full concentration to win the Bundesliga trophy.