Mainz are still not losing... A very impressive form graph there though. They haven't lost for 6 weeks. 4 of them are wins. We still see them at the 3rd position while there are only 8 weeks to go for the end of the season.
What do you say about them? I mean how do you see their chance for a Champions League spot?

There are still teams like a few more teams fighting for the same goal being really close to each other.
Mainz are not bad in defense. But they had better keep their scoring as high as possible. Their performance so far deserves a spot for it in my opinion.

Here's how bookmakers see their odds at the moment:
Eintracht Frankfurt - 1.40
Fsv Mainz - 1.91Rb Leipzig - 2.63
Sport-Club Freiburg - 4.00
Vfb Stuttgart - 8.00
In fact, they are the favorites along with Eintracht. Another thing is that in the Bundesliga it is normal for someone to suddenly take off, but then fall just as hard. Literally last season, Union played in the Champions League, and they miraculously avoided relegation. But maybe with the new Champions League format, Mainz's chances there will be slightly more than "getting a few defeats and ending their participation in the tournament."